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EP0099000A2 - Piston machine kaving cylinders in star-arrangement - Google Patents

Piston machine kaving cylinders in star-arrangement Download PDF

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Publication number
EP0099000A2
EP0099000A2 EP83106082A EP83106082A EP0099000A2 EP 0099000 A2 EP0099000 A2 EP 0099000A2 EP 83106082 A EP83106082 A EP 83106082A EP 83106082 A EP83106082 A EP 83106082A EP 0099000 A2 EP0099000 A2 EP 0099000A2
Authority
EP
European Patent Office
Prior art keywords
suction
piston machine
machine according
channels
pressure
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP83106082A
Other languages
German (de)
French (fr)
Other versions
EP0099000A3 (en
EP0099000B1 (en
Inventor
Guido Oberdorfer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
WAP Reinigungssysteme GmbH and Co
Original Assignee
WAP Reinigungssysteme GmbH and Co
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by WAP Reinigungssysteme GmbH and Co filed Critical WAP Reinigungssysteme GmbH and Co
Priority to AT83106082T priority Critical patent/ATE39166T1/en
Publication of EP0099000A2 publication Critical patent/EP0099000A2/en
Publication of EP0099000A3 publication Critical patent/EP0099000A3/en
Application granted granted Critical
Publication of EP0099000B1 publication Critical patent/EP0099000B1/en
Expired legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
    • F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
    • F04B1/00—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders
    • F04B1/04—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinders in star- or fan-arrangement
    • F04B1/0404—Details or component parts
    • F04B1/0452—Distribution members, e.g. valves

Definitions

  • the present invention relates to a piston machine with at least two cylinders, with suction and pressure valves, which are assigned to the cylinders in pairs, and with a suction and a pressure line, which are connected to the cylinders via the valves mentioned.
  • One of the objects of the present invention is to provide a piston machine with at least two cylinders which does not have the disadvantages mentioned.
  • the piston machine according to FIGS. 1 and 2 has cylinders 1 arranged in a star shape, in which pistons 2 are located.
  • the pistons 2 are under the action of an eccentric 3, which is seated on the shaft 4 of an electric motor 5.
  • a flange 7 for receiving valves 8 and 9 is formed on the respective cylinder head 6.
  • a cover 10 with an oil drain 11 is attached.
  • a connector 12 is attached to the front of the arrangement already described, which is designed as a shaped piece.
  • This fitting 12 contains suction channels 13 and pressure channels 14, which, according to the arrangement of the cylinders 1, also run in a star shape.
  • One end of the suction channels 13 opens into a cavity 15 formed in the shaped piece 12.
  • the shaped piece 12 has a threaded sleeve 16 in the area of the hollow space 15, by means of which the suction line (not shown) is connected to the machine.
  • the shaped part 12 can in principle be designed as a plate in which the channels 13 and 14 run in a star shape. However, it is also possible to merely arrange tubes in a star shape instead of a plate and to connect them to one another in such a way that the channels 13 and 14 delimited by these tubes are connected to one another as required.
  • Such an embodiment of the molding 12 is shown in the drawing.
  • the first tubes 17 limit the Suction channels 13 and the second pipes 18 delimit the pressure channels 14.
  • the ends of the suction pipes 17 located in the central area of the machine open into the cavity 15.
  • the corresponding ends of the pressure pipes 18 are connected to one another in terms of flow in the central area of the machine, but they have no connection with the cavity 15.
  • the tubes 17 having the suction channels 13 and the tubes 18 having the pressure channels 14 are designed as two star-shaped tube sets. These tube sets are arranged concentrically and firmly connected to each other in the central area. However, they are located one behind the other, as can best be seen in FIG. 2.
  • the cavity 15 is separated from the pressure channels 14 by the wall 30.
  • the tubes 17 of the one tube set are offset from one another in the circumferential direction relative to the tubes 18 of the other tube set.
  • the suction channel 13 is at an angle to the pressure channel 14 which communicates with the same cylinder 1.
  • the end portions of the tubes 17 and 11 lying in the peripheral region of the machine can then lie side by side. They are provided with flanges 19, the end faces of which are in the same plane. These flanges 19 lie opposite the respective flange 7 on the cylinder head 6.
  • the end parts of the tubes 17 and 18 mentioned are provided with runners 20 in which bores 21 for receiving screws (not shown) are made.
  • valve pairs 8 and 9 are arranged between the flanges 7 and 19 and clamped with the aid of the screws mentioned, which are screwed into the cylinder head 6.
  • the connection between the valves 8 and 9 and the interior of the cylinder takes place with the aid of openings 22 (FIG. 2) which are implemented in the cylinder head and in the flange 7.
  • This opening 23 passes through a sprue 24, in which threaded holes 25 for fastening the pressure line (not shown) are made.
  • a so-called by-pass device is normally connected between the pressure line and the machine. When the pressure in the pressure line exceeds a predetermined value, the by-pass device returns the fluid to the suction line.
  • suction and pressure channels 13 and 14 The arrangement of suction and pressure channels 13 and 14 described above enables a particularly advantageous attachment of the by-pass device to the machine.
  • a suction channel 13 and a pressure channel 14 lead to the respective cylinder, which are close to one another.
  • one of the pressure channels 14 is provided with the outlet opening 23.
  • Another opening 26 can be made in the adjacent suction channel 13.
  • suction channel 13 or that suction tube 17 is provided with the opening 26, which is assigned to the same cylinder 1 as the pressure channel 14 or the pressure tube 18 with the opening 23.
  • the by-pass device is inserted into the holes 25 penetrating screws (not shown) attached to the machine.
  • the entrance opening and the return opening of the by-pass device communicate with the openings 23 and 26 in the channels of the machine.
  • the pressure line is only connected to the by-pass device.
  • the by-pass device bridges the two mentioned oeff 23 and 26, and it allows the fluid, if a still permissible pressure in the pressure line is exceeded, to be returned to the suction part of the machine.
  • valves 8 and 9 can be designed as described, for example, in German Offenlegungsschrift No. 2753370.
  • the pressure inside the cylinders reaches very high values, these pressure values rapidly changing in accordance with the reciprocating movement of the respective piston. This causes a heavy load on the fasteners holding the cylinder head on the cylinder. If the valves are attached to the side of the cylinder head, the pumped fluid also causes a rapidly changing lateral stress on the fastening means for the cylinder head. Such a combined stress on the fasteners mentioned could lead to malfunctions in machine operation during long-term operation of the machine.
  • Another object of the present invention is therefore to design the machine in such a way that the combined stressing of the fastening means mentioned does not occur.
  • the openings 22 are made in the end wall 31 of the cylinder head 6 (FIG. 3), while the openings 22 mentioned in the embodiment of the machine described above were made in the side wall of the cylinder head 6.
  • the valves 8 and 9 already mentioned in the form of cartridges.
  • the end section of the respective channel 13 or 14 rests on these valve cartridges 8 and 9.
  • Section of the channel 13 or 14 which has the mouth resting on the valve cartridges 8 or 9 and was approximately at right angles to the rest of the channel, this section 32 of the channel 13 or 14 closes with the remaining part 33 in this further development of the machine of the channel 13 or 14 a sharp angle.
  • the mentioned end section 32 of the channel 13 or 14 now runs almost in the opposite direction with respect to the remaining part 33 of the channel 13 or 14.
  • the connection between the end section 33 of the channels 13 and 14 and the cylinder head 6 is again made with the aid of flanges and screws, essentially as described above.
  • the lag screws can be long enough to reach cylinder 1.
  • the pressure inside the cylinder 1 caused by the movement of the pistons 2 and the stress from the flowing fluid stresses the cylinder head 6 and therefore also its fastening means in the same direction, namely in the axial direction of the cylinder 1.
  • Such stress can be easily absorbed by suitable dimensioning of the screws mentioned. In this case, you also save a set of flanges and screws. Because in the machine described above, a second set of flanges and screws for fastening the cylinder head 6 to the cylinder 1 is required.
  • the connecting piece that connects the individual cylinder heads 6 to one another and then connects them to the suction and pressure lines can be made even more expedient.
  • 4 contains individual fittings 35, 36 and 37 which are fastened to the cylinder heads 6 with the aid of lag screws 38 and with the interposition of the valve cartridges 8 and 9 already described.
  • Each cylinder head 6 is thus such a fitting 35, 36 and 37 assigned.
  • suction channels 13 and pressure channels 14 are executed, which are connected at one end to the valves 8 and 9 already mentioned.
  • the fittings 35, 36 and 37 are, however, only so large that they still cover the cylinder head 6.
  • the connection between such fittings 35, 36 and 37 is made with the help of tubes 39 and 40.
  • the end portions of these tubes 39 and 40 are inserted into the fittings, in such a way that the end portions of tubes 39 and 40 are located at the other end of the Connect suction duct 13 or pressure duct 14 in the respective fitting 35, 36 or 37.
  • this connecting piece is achieved by designing one of the shaped pieces 37 in such a way that the pipes 39 and 40 of all the other shaped pieces 35 and 36 end in this shaped piece 37. At the same time, this middle from piece 37 is provided with the threaded sleeve 16 already discussed for connecting the suction line and with the socket 24 for fastening the pressure line. As can be seen from FIG. 4, the left pressure duct 14 overlaps the right suction duct 13 from the right fitting 35 to the left fitting 36.
  • the piston seal in the cylinder can be worn during long-term operation of the machine. Such wear of the seal has the consequence that the fluid can get from the space in front of the piston 2 along the piston 2 to the eccentric 3 of the machine. This can cause the machine to fail. To prevent this, the measures shown in FIG. 5 can be taken on the machine.
  • the piston seal 42 which is located between the cylinder 1 and the cylinder head 6, has a cylindrical base body 43 which is provided with a through opening for the piston 2.
  • the wall of this through opening is provided with a circumferential groove 41, which opens into the interior of the base body 43.
  • a tube 44 is made, the interior of which adjoins the cavity delimited by the aforementioned groove 41.
  • the other end of this tube 44 passes through the wall of the first tube 17 of the connecting piece 12 according to FIGS. 1 and 2 and it opens into the suction channel 13.
  • the end of the connecting tube located in the wall of the first tube 17 of the connecting piece 12 44 is provided with a seal 45 so that no ambient air can be drawn in at this point.
  • sealing sleeves 46 and 47 lying one on top of the other.
  • sealing sleeves 49 and 50 are compressed between the base body 43 and a counterpart 51, which on the Cylinder 1 rests and protrudes into the recess 48.
  • the sealing sleeves 46, 47, 49 and 50 lie tight against the piston.
  • the fluid which possibly reaches the zone of the groove 41 which lies behind the first gasket set 46, 47, is sucked from here under the action of the underpressure in the suction channel 13 out of the groove 41 through the connecting pipe 44 and into the cylinder head 6 returned.
  • the sealing sleeves 49 and 50 of the lower seal set should additionally ensure that the fluid does not reach the eccentric 3.
  • these sealing sleeves 49 and 50 are also intended to ensure that as little lubricant as possible gets into the piston-cylinder space from the eccentric 3.
  • a tube 51 is arranged in the suction channel 13, the outer end 52 of which is connected via a metering device to a storage container (not shown) for the substance to be mixed.
  • the mouth of the end 53 of the mixing tube 51 located in the suction channel 13 lies in the same plane as the mouth of the suction channel 13 to which the valve 8 is assigned.
  • the reduction in the cross section of the aforementioned mouth of the suction channel 13, which is brought about by the presence of the inner end 53 of the mixing tube 51 in the mouth of the suction tube 13, results in a pressure drop before the mouth of the mixing tube 51. This negative pressure enables the substance to be mixed to be introduced from the storage container into the suction channel 13 and thus also into the fluid.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Reciprocating Pumps (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)

Abstract

The pump contains cylinders (1) which are arranged in the form of a star and which are attached to a molding (12) with valve cartridges (8 and 9) being interposed. This molding (12) consists of two sets of pipes (17 and 18) which are arranged in the form of a star. The suction channels (13) of the pump are formed in one of the sets of pipes (17). The delivery channels (14) are formed in the other of the pipe sets (18). The central ends of the suction channels (13) open into a cavity (15) which is located in the center of the molding (12) and which is provided with a screw sleeve (16) for attaching a suction line. The central ends of the delivery channels (14) are connected to one another in flow terms, and one of the delivery channels (14) is provided with an outflow orifice (23) for the fluid. The use of the molding mentioned makes it substantially simpler to connect the individual parts of the pump to one another and to the lines attached to the pump.

Description

Die vorliegende Erfindung betrifft eine Kolbenmaschine, mit wenigstens zwei Zylindern, mit Saug- und Druckventilen, die paarweise den Zylindern zugeordnet sind, und mit einer Saug- und einer Druckleitung, die über die genannten Ventile an die Zylinder angeschlossen sind.The present invention relates to a piston machine with at least two cylinders, with suction and pressure valves, which are assigned to the cylinders in pairs, and with a suction and a pressure line, which are connected to the cylinders via the valves mentioned.

Bei einer bekannten Kolbenmaschine dieser Art wird die Verbindung zwischen den Leitungen und den dem jeweiligen Zylinder zugeordneten Ventilen mit Hilfe von Schläuchen hergestellt. Einerseits stellt dies eine arbeitsintensive Art und Weise von Verbindung zwischen den genannten Leitungen und den Elementen der Maschine. Andererseits, weil in den druckseitigen Schläuchen ein beträchtlicher Druck herrschen kann, ist die Verwendung von Schläuchen mit einem bestimmten Betriebsrisiko verbunden.In a known piston machine of this type, the connection between the lines and the valves assigned to the respective cylinder is made with the aid of hoses. On the one hand, this represents a labor-intensive way of connection between the lines mentioned and the elements of the machine. On the other hand, because there can be considerable pressure in the pressure-side hoses, the use of hoses is associated with a certain operating risk.

Eine der Aufgaben der vorliegender Erfindung ist, eine Kolbenmaschine mit wenigstens zwei Zylindern anzugeben, die die genannten Nachteile nicht aufweist.One of the objects of the present invention is to provide a piston machine with at least two cylinders which does not have the disadvantages mentioned.

Diese Aufgabe wird bei der Kolbennaschine der eingangs genannten Art erfindungsgemäss sc gelöst, wie dies im kennzeichnenden Teil des Anspruchs 1 definiert ist.This object is achieved according to the invention in the piston machine of the type mentioned at the outset, as defined in the characterizing part of claim 1.

Nachstehend werden Ausführungsformen der vorliegenden Erfindung anhand der beiliegenden Zeichnung näher erörtert. Es zeigt:

  • Fig. 1 in einer Frontansicht die vorliegende Maschine mit einem sternförmig ausgebildeten Verbindungsstück für die Zylinder der Maschine,
  • Fig. 2 in einem vertikalen Schnitt A-A die Maschine aus Fig. 1,
  • Fig. 3 in einem vertikalen Schnitt eine weitere Möglichkeit für den Anschluss des Verbindungsstückes an die Zylinder der Maschine nach Fig. 1
  • Fig. 4 eine Frontansicht einer weiteren Möglichkeit für die Ausbildung des an die Zylinderköpfe der Maschine nach Fig. 1 angeschlossenen Verbindungsstückes, und
  • Fig. 5 in einem vertikalen Schnitt eine Weiterbildung der Maschine nach Fig. l.
Embodiments of the present invention will now be discussed in detail with reference to the accompanying drawings. It shows:
  • 1 is a front view of the present machine with a star-shaped connector for the cylinders of the machine,
  • 2 in a vertical section AA the machine of FIG. 1,
  • Fig. 3 in a vertical section another possibility for the connection of the connecting piece to the cylinders of the machine according to FIG. 1
  • Fig. 4 is a front view of a further possibility for the formation of the connecting piece connected to the cylinder heads of the machine according to Fig. 1, and
  • 5 shows a vertical section of a further development of the machine according to FIG.

Die Kolbenmaschine gemäss Fig. 1 und 2 weist sternförmig angeordnete Zylinder 1 auf, in welchen sich Kolben 2 befinden. Die Kolben 2 stehen unter der Einwirkung eines Exzenters 3, der auf der Welle 4 eines Elektromotors 5 sitzt. Am jeweiligen Zylinderkopf 6 ist ein Flansch 7 zur Aufnahme von Ventilen 8 und 9 ausgebildet.The piston machine according to FIGS. 1 and 2 has cylinders 1 arranged in a star shape, in which pistons 2 are located. The pistons 2 are under the action of an eccentric 3, which is seated on the shaft 4 of an electric motor 5. A flange 7 for receiving valves 8 and 9 is formed on the respective cylinder head 6.

In der mittleren Partie des Gehäuses der Maschine ist ein Deckel 10 mit einem Oelablass 11 angebracht. Ueber diesem Deckel 10 ist an der Frontseite der bereits beschriebenen Anordnung ein Verbindungsstück 12 angebracht, dass als ein Formstück ausgeführt ist. Dieses Formstück 12 enthält Saugkanäle 13 und Druckkanäle 14, die, entsprechend der Anordnung der Zylinder 1, ebenfalls sternförmig verlaufen. Die einen Enden der Saugkanäle 13 münden in einen im Formstück 12 ausgebildeten Hohlraum 15. Das Formstück 12 weist im Bereich des Hohlraumes 15 eine Gewindehülse 16 auf, mit deren Hilfe die Saugleitung (nicht dargestellt) an die Maschine angeschlossen ist.In the middle part of the housing of the machine, a cover 10 with an oil drain 11 is attached. Above this cover 10, a connector 12 is attached to the front of the arrangement already described, which is designed as a shaped piece. This fitting 12 contains suction channels 13 and pressure channels 14, which, according to the arrangement of the cylinders 1, also run in a star shape. One end of the suction channels 13 opens into a cavity 15 formed in the shaped piece 12. The shaped piece 12 has a threaded sleeve 16 in the area of the hollow space 15, by means of which the suction line (not shown) is connected to the machine.

Das Formstück 12 kann im Prinzip als eine Platte ausgeführt sein, in der die Kanäle 13 und 14 sternförmig verlaufen. Es ist jedoch auch möglich, anstelle einer Platte bloss Rohre sternförmig anzuordnen und diese untereinander so zu verbinden, dass die durch diese Rohre begrenzten Kanäle 13 und 14 in erforderlicher Weise untereindander verbunden sind. Eine solche Ausführungsform des Formstückes 12 ist in der Zeichnung dargestellt. Die ersten Rohre 17 begrenzen die Saugkanäle 13, und die zweiten Rohre 18 begrenzen die Druckkanäle 14. Die im Mittelbereich der Maschine liegenden Enden der Saugrohre 17 münden in den Hohlraum 15. Die entsprechenden Enden der Druckrohre 18 sind im mittleren Bereich der Maschine untereinander strömungsmässig verbunden, sie haben jedoch keine Verbindung mit dem Hohlraum 15. Die die Saugkanäle 13 aufweisenden Rohre 17 und die die Druckkanäle 14 aufweisenden Rohre 18 sind als zwei sternförmige Rohrsätze ausgeführt. Diese Rohrsätze sind zwar konzentrisch angeordnet und im mittleren Bereich miteinander fest verbunden. Sie befinden sich jedoch hintereinander, wie dies am besten aus Fig. 2 ersichtlich ist. Der Hohlraum 15 ist von den Druckkanälen 14 durch die Wand 30 getrennt.The shaped part 12 can in principle be designed as a plate in which the channels 13 and 14 run in a star shape. However, it is also possible to merely arrange tubes in a star shape instead of a plate and to connect them to one another in such a way that the channels 13 and 14 delimited by these tubes are connected to one another as required. Such an embodiment of the molding 12 is shown in the drawing. The first tubes 17 limit the Suction channels 13 and the second pipes 18 delimit the pressure channels 14. The ends of the suction pipes 17 located in the central area of the machine open into the cavity 15. The corresponding ends of the pressure pipes 18 are connected to one another in terms of flow in the central area of the machine, but they have no connection with the cavity 15. The tubes 17 having the suction channels 13 and the tubes 18 having the pressure channels 14 are designed as two star-shaped tube sets. These tube sets are arranged concentrically and firmly connected to each other in the central area. However, they are located one behind the other, as can best be seen in FIG. 2. The cavity 15 is separated from the pressure channels 14 by the wall 30.

Damit man einen einfachen Anschluss der aussen liegenden Enden der Rohre 17 und 18 an den jeweiligen Zylinderkopf 6 erhält, sind die Rohre 17 des einen Rohrsatzes gegenüber den Rohren 18 des anderen Rohrsatzes in der Umfangsrichtung züinander versetzt angeordnet. Infolgedessen steht der Saugkanal 13 unter einem Winkel zu jenem Druckkanal 14, der mit demselben Zylinder 1 kommuniziert. Die im Umfangsbereich der Maschine liegenden Endpartien der Rohre 17 und is können dann nebeneinander liegen. Sie sind mit Flanschen 19 versehen, deren Stirnflächen in derselben Ebene liegen. Diese Flansche 19 liegen gegenüber dem jeweiligen Flansch 7 am Zylinderkopf 6. Ausserdem sind die genannten Endpartien der Rohre 17 und 18 mit Ausläufern 20 versehen, in welchen Bohrungen 21 zur Aufnahme von Schrauben (nicht dargestellt) ausgeführt sind. Zwischen den Flanschen 7 und 19 sind die Ventilpaare 8 und 9 angeordnet und mit Hilfe der erwähnten Schrauben geklemmt, die in den Zylinderkopf 6 eingeschraubt sind. Die Verbindung zwischen den Ventilen 8 bzw. 9 und dem Inneren des Zylinders erfolgt mit Hilfe von Oeffnungen 22 (Fig.2), die im Zylinderkopf und im Flansch 7 ausgeführt sind.So that a simple connection of the outer ends of the tubes 17 and 18 to the respective cylinder head 6 is obtained, the tubes 17 of the one tube set are offset from one another in the circumferential direction relative to the tubes 18 of the other tube set. As a result, the suction channel 13 is at an angle to the pressure channel 14 which communicates with the same cylinder 1. The end portions of the tubes 17 and 11 lying in the peripheral region of the machine can then lie side by side. They are provided with flanges 19, the end faces of which are in the same plane. These flanges 19 lie opposite the respective flange 7 on the cylinder head 6. In addition, the end parts of the tubes 17 and 18 mentioned are provided with runners 20 in which bores 21 for receiving screws (not shown) are made. The valve pairs 8 and 9 are arranged between the flanges 7 and 19 and clamped with the aid of the screws mentioned, which are screwed into the cylinder head 6. The connection between the valves 8 and 9 and the interior of the cylinder takes place with the aid of openings 22 (FIG. 2) which are implemented in the cylinder head and in the flange 7.

Einer der untereinander strömungsmässig verbundnen Druckkanäle 14 ist mit einer Durchgangsöffnung 23 versehen, die den Austritt des unter Druck stehenden Fluids, d.h. von Wasser, Luft oder dgl. ermöglicht. Diese Oeffnung 23 geht durch einen Anguss 24 hindurch, in dem Gewindelöcher 25 zur Befestigung der Druckleitung (nicht dargestellt) ausgeführt sind.One of the pressure channels 14, which is connected to one another in terms of flow, is provided with a through-opening 23 which blocks the outlet of the pressurized fluid, i. of water, air or the like. This opening 23 passes through a sprue 24, in which threaded holes 25 for fastening the pressure line (not shown) are made.

Wenn man den Abfluss des Fluids aus der Druckleitung aus irgendwelchen Gründen unterbrechen würde, würde der Druck in der Druckleitung unzulässige Werte erreichen. Um dies zu verhindern, wird normalerweise eine sogenannte by-pass-Vorrichtung zwischen die Druckleitung und die Maschine geschaltet. Wenn der Druck in der Druckleitung einen vorgegebenen Wert überschreitet, führt die by-pass-Vorrichtung das Fluid in die Saugleitung zurück.If the discharge of the fluid from the pressure line were interrupted for any reason, the pressure in the pressure line would reach inadmissible values. To prevent this, a so-called by-pass device is normally connected between the pressure line and the machine. When the pressure in the pressure line exceeds a predetermined value, the by-pass device returns the fluid to the suction line.

Die vorstehend beschriebene Anordnung von Saug- und Druckkanälen 13 und 14 ermöglicht eine besonders vorteilhafte Anbringung der by-pass-Vorrichtung an der Maschine. Wie bereits gesagt worden ist, führen zum jeweiligen Zylinder je ein Saugkanal 13 und je ein Druckkanal 14, die nahe aneinander liegen. Wir haben auch erwähnt, dass einer der Druckkanäle 14 mit der Austrittsöffnung 23 versehen ist. Eine weitere Oeffnung 26 kann im benachbarten Saugkanal 13 ausgeführt sein. Im dargestellten Beispiel ist jener Saugkanal 13 bzw. jenes Saugrohr 17 mit der Oeffnung 26 versehen, der demselben Zylinder 1 zugeordnet ist wie der Druckkanal 14 bzw. das Druckrohr 18 mit der Oeffnung 23. Die by-pass-Vorichtung ist mittels in die Löcher 25 eindringender Schrauben (nicht dargestellt) an der Maschine befestigt. Die Eingangsöffnung und die Rückführöffnung der by-pass-Vorrichtung kommunizieren dabei mit den Oeffnungen 23 und 26 in den Kanälen der Maschine. Die Druckleitung ist erst an die by-pass-Vorrichtung angeschlossen. In dieser Weise überbrückt die by-pass-Vorrichtung die zwei genannten Oeffnungen 23 und 26, und sie erlaubt, dass das Fluid, falls ein noch zulässiger Druck in der Druckleitung überschritten wird, in den Saugteil der Maschine zurückgeführt wird.The arrangement of suction and pressure channels 13 and 14 described above enables a particularly advantageous attachment of the by-pass device to the machine. As has already been said, a suction channel 13 and a pressure channel 14 lead to the respective cylinder, which are close to one another. We also mentioned that one of the pressure channels 14 is provided with the outlet opening 23. Another opening 26 can be made in the adjacent suction channel 13. In the example shown, that suction channel 13 or that suction tube 17 is provided with the opening 26, which is assigned to the same cylinder 1 as the pressure channel 14 or the pressure tube 18 with the opening 23. The by-pass device is inserted into the holes 25 penetrating screws (not shown) attached to the machine. The entrance opening and the return opening of the by-pass device communicate with the openings 23 and 26 in the channels of the machine. The pressure line is only connected to the by-pass device. In this way, the by-pass device bridges the two mentioned oeff 23 and 26, and it allows the fluid, if a still permissible pressure in the pressure line is exceeded, to be returned to the suction part of the machine.

Die Ventile 8 und 9 können so ausgeführt sein, wie dies beispielsweise in der deutschen Offenlegungsschrift Nr. 2753370 beschrieben ist.The valves 8 and 9 can be designed as described, for example, in German Offenlegungsschrift No. 2753370.

Während des Betriebes der beschriebenen Maschine erreicht der Druck im Inneren der Zylinder sehr hohe Werte, wobei diese Druckwerte entsprechend der hin- und hergehenden Bewegung des jeweiligen Kolbens rasch wechseln. Dies verursacht eine starke Beanspruchung der den Zylinderkopf auf dem Zylinder haltenden Befestigungsmittel. Wenn die Ventile am Zylinderkopf seitlich angebracht sind, dann verursacht das gepumpte Fluid auch eine rasch wechselnde seitliche Beanspruchung der Befestigungsmittel für den Zylinderkopf. Eine solche kombinierte Beanspruchung der genannten Befestigungsmittel könnte beim Langzeitbetrieb der Maschine zu Störungen des Maschinenbetriebes führen.During operation of the machine described, the pressure inside the cylinders reaches very high values, these pressure values rapidly changing in accordance with the reciprocating movement of the respective piston. This causes a heavy load on the fasteners holding the cylinder head on the cylinder. If the valves are attached to the side of the cylinder head, the pumped fluid also causes a rapidly changing lateral stress on the fastening means for the cylinder head. Such a combined stress on the fasteners mentioned could lead to malfunctions in machine operation during long-term operation of the machine.

Eine weitere Aufgabe der vorliegenden Erfindung ist daher, die Maschine so auszubilden, dass die kombinierte Beanspruchung der genannten Befestigungsmittel nicht auftritt.Another object of the present invention is therefore to design the machine in such a way that the combined stressing of the fastening means mentioned does not occur.

Zu deisem Zweck sind die Oeffnungen 22 in der Stirnwand 31 des Zylinderkopfes 6 (Fig. 3) ausgeführt, während die genannten Oeffnungen 22 in der vorstehend beschriebenen Ausführungsform der Maschine in der Seitenwand des Zylinderkopfes 6 ausgeführt waren. Auf der Stirnwand 31 des Zylinderkopfes 6 befinden sich dann die bereits erwähnten Ventile 8 bzw. 9 in Form von Patronen. Auf diesen Ventilpatronen 8 und 9 liegt die Endpartie des jeweiligen Kanals 13 bzw. 14 auf. Diese Endpartien sind allerdings ein wenig anders ausgestaltet als in der vorstehend beschriebenen Ausführungsform der vorliegenden Maschine. Während vorher jener Abschnitt des Kanals 13 bzw.l4, der die an den Ventilpatronen 8 bzw. 9 aufliegende Mündung aufweist, zum übrigen Teil des Kanals etwa rechtwinklig stand, schliesst dieser Abschnitt 32 des Kanals 13 bzw. 14 bei dieser Weiterbildung der Maschine mit dem übrigen Teil 33 des Kanals 13 bzw. 14 einen scharfen Winkel. Der genannte Endabschnitt 32 des Kanals 13 bzw. 14 verläuft inbezug auf den übrigen Teil 33 des Kanals 13 bzw. 14 jetzt daher beinahe in entgegengesetzter Richtung. Die Verbindung zwischen dem Endabschnitt 33 der Kanäle 13 und 14 und dem Zylinderkopf 6 erfolgt wiederum mit Hilfe von Flanschen und Schrauben, und zwar im wesentliche so, wie dies vorstehend beschrieben worden ist. Die Zugschrauben können dabei so lang sein, dass sie bis in den Zylinder 1 reichen.For this purpose, the openings 22 are made in the end wall 31 of the cylinder head 6 (FIG. 3), while the openings 22 mentioned in the embodiment of the machine described above were made in the side wall of the cylinder head 6. On the end wall 31 of the cylinder head 6 are the valves 8 and 9 already mentioned in the form of cartridges. The end section of the respective channel 13 or 14 rests on these valve cartridges 8 and 9. These end sections are, however, designed a little differently than in the embodiment of the present machine described above. While before that Section of the channel 13 or 14, which has the mouth resting on the valve cartridges 8 or 9 and was approximately at right angles to the rest of the channel, this section 32 of the channel 13 or 14 closes with the remaining part 33 in this further development of the machine of the channel 13 or 14 a sharp angle. The mentioned end section 32 of the channel 13 or 14 now runs almost in the opposite direction with respect to the remaining part 33 of the channel 13 or 14. The connection between the end section 33 of the channels 13 and 14 and the cylinder head 6 is again made with the aid of flanges and screws, essentially as described above. The lag screws can be long enough to reach cylinder 1.

In der gerade beschriebenen Ausführungsform der Maschine beansprucht der Druck im Inneren des Zylinders 1, der durch die Bewegung der Kolben 2 verursacht wird, und die Beanspruchung vom strömenden Fluid den Zylinderkcpf 6 und daher auch seine Befestigungsmittel in derselben Richtung, und zwar in der axialen Richtung des Zylinders 1. Eine solche Beanspruchung kann durch eine geeignete Dimensionierung der genannten Schrauben leicht abgefangen werden. Ausserdem erspart man in diesem Fall einen Satz von Flanschen und Schrauben. Denn bei der vorstehend beschriebenen Maschine es noch einen zweiten Satz von Flanschen und Schrauben zur Befestigung des Zylinderkopfes 6 auf dem Zylinder 1 bedarf.In the embodiment of the machine just described, the pressure inside the cylinder 1 caused by the movement of the pistons 2 and the stress from the flowing fluid stresses the cylinder head 6 and therefore also its fastening means in the same direction, namely in the axial direction of the cylinder 1. Such stress can be easily absorbed by suitable dimensioning of the screws mentioned. In this case, you also save a set of flanges and screws. Because in the machine described above, a second set of flanges and screws for fastening the cylinder head 6 to the cylinder 1 is required.

Das Verbindungsstück, dass die einzelnen Zylinderköpfe 6 untereinander und diese dann mit der Saug- und der Druckleitung verbindet, kann noch zweckmässiger gestaltet werden. Das Verbindungsstück gemäss Fig. 4 enthält einzelne Formstücke 35, 36 und 37, die mit Hilfe von Zugschrauben 38 und unter der bereits beschriebenen Zwischenschaltung der Ventilpatronen 8 und 9 an den Zylinderköpfen 6 befestigt sind. Jedem Zylinderkopf 6 wird somit ein solches Formstück 35, 36 bzw. 37 zugeordnet. In diesen Formstücken 35, 36 und 37 sind Saugkanäle 13 sowie Druckkanäl 14 ausgeführt, die einerends an die bereits genannten Ventile 8 und 9 angeschlossen sind. Die Formstücke 35, 36 und 37 sind jedoch nur so gross, dass sie den Zylinderkopf 6 noch überdecken. Die Verbindung unter solchen Formstücken 35, 36 und 37 erfolgt mit Hilfe von Rohren 39 und 40. Die Endpartien dieser Rohre 39 und 40 sind in den Formstücken eingesteckt, und zwar derart, dass die Endpartien der Rohre 39 und 40 sich an das andere Ende des Saugkanals 13 bzw. Druckkanals 14 im jeweiligen Formstück 35, 36 bzw. 37 anschliessen.The connecting piece that connects the individual cylinder heads 6 to one another and then connects them to the suction and pressure lines can be made even more expedient. 4 contains individual fittings 35, 36 and 37 which are fastened to the cylinder heads 6 with the aid of lag screws 38 and with the interposition of the valve cartridges 8 and 9 already described. Each cylinder head 6 is thus such a fitting 35, 36 and 37 assigned. In these fittings 35, 36 and 37 suction channels 13 and pressure channels 14 are executed, which are connected at one end to the valves 8 and 9 already mentioned. The fittings 35, 36 and 37 are, however, only so large that they still cover the cylinder head 6. The connection between such fittings 35, 36 and 37 is made with the help of tubes 39 and 40. The end portions of these tubes 39 and 40 are inserted into the fittings, in such a way that the end portions of tubes 39 and 40 are located at the other end of the Connect suction duct 13 or pressure duct 14 in the respective fitting 35, 36 or 37.

Es dürfte klar sein, dass die Anforderungen an das Material des Verbindunngsstückes im Bereich der Zylinderköpfe 6 und im Bereich der verbindenden rohrförmigen Abschnitte desselben unterschiedlich sind. Bei der gerade beschriebenen Ausführungsform des Verbindungsstückes kann man diesem Umstand besser Rechnung tragen als dem beim Verbindungsstück gemäss Fig. 1 und 2 der Fall war.It should be clear that the requirements for the material of the connecting piece in the area of the cylinder heads 6 and in the area of the connecting tubular sections thereof are different. In the embodiment of the connecting piece just described, this fact can be better taken into account than was the case with the connecting piece according to FIGS. 1 and 2.

Eine besonders vorteilhafte Ausführung dieses Verbindungsstückes erreicht man, inden man eines der Formstücke 37 derart gestaltet, dass die Rohre 39 und 40 von allen übrigen Formstücken 35 und 36 in diesem Formstück 37 enden. Zugleich ist dieses mittlere Fromstück 37 mit der bereits besprochenen Gewindehülse 16 für den Anschluss der Saugleitung sowie mit dem Stutzen 24 für die Befestigung der Druckleitung versehen. Wie aus Fig. 4 ersichtlich ist, überlagert der linke Druckkanal 14 vom rechten Formstück 35 den rechten Saugkanal 13 zum linken Formstück 36.A particularly advantageous embodiment of this connecting piece is achieved by designing one of the shaped pieces 37 in such a way that the pipes 39 and 40 of all the other shaped pieces 35 and 36 end in this shaped piece 37. At the same time, this middle from piece 37 is provided with the threaded sleeve 16 already discussed for connecting the suction line and with the socket 24 for fastening the pressure line. As can be seen from FIG. 4, the left pressure duct 14 overlaps the right suction duct 13 from the right fitting 35 to the left fitting 36.

Während eines Langzeitbetriebes der Maschine kann die Kolbendichtung im Zylinder abgenützt werden. Eine solche Abnützung der Dichtung hat zur Folge, dass das Fluid aus dem sich vor dem Kolben 2 befindlichen Raum entlang dem Kolben 2 bis zum Exzenter 3 der Maschine gelangen kann. Dies kann einen Ausfall der Maschine zur Folge haben. Um dies zu verhindern, kann die aus Fig. 5 ersichtliche Massnahme an der Maschine getroffen werden.The piston seal in the cylinder can be worn during long-term operation of the machine. Such wear of the seal has the consequence that the fluid can get from the space in front of the piston 2 along the piston 2 to the eccentric 3 of the machine. This can cause the machine to fail. To prevent this, the measures shown in FIG. 5 can be taken on the machine.

Die Kolbendichtung 42, die sich zwischen dem Zylinder 1 und dem Zylinderkopf 6 befindet, weist einen zylinderförmigen Grundkörper 43 auf, der mit einer Durchgangsöffnung für den Kolben 2 versehen ist. Die Wand dieser Durchgangsöffnung ist mit einer umlaufenden Nut 41 versehen, die in den Innenraum des Grundkörpers 43 mündet. Aus dem Grundkörper 43 ist ein Rohr 44 ausgeführt, dessen Innenraum sich an den durch die genannte Nut 41 begrenzten Hohlraum anschliesst. Das andere Ende dieses Rohres 44 geht durch die Wand des ersten Rohres 17 des Verbindungsstücken 12 nach Fig. 1 bzw. 2 hindurch und und es mündet in den Saugkanal 13. Das sich in der Wand des ersten Rohres 17 des Verbindungsstückes 12 befindliche Ende des Verbindungsrohres 44 ist mit einer Dichtung 45 versehen, damit keine Umgebungsluft an dieser Stelle angesaugt werden kann. Zwischen der Zylinderkopf E und dem Grundkörper 43 befinden sich aufeinanderliegende Dichtmanschetten 46 und 47. In einer Ausnehmung 48 der gegenüberliegenden Endpartie des Grundkörpers 43 befinden sich zwei weitere Dichtmanschetten 49 und 50, die zwischen dem Grundkörper 43 und einem Gegenstück 51 zusammengedrückt sind, das auf dem Zylinder 1 aufliegt und in die Ausnehmung 48 ragt.The piston seal 42, which is located between the cylinder 1 and the cylinder head 6, has a cylindrical base body 43 which is provided with a through opening for the piston 2. The wall of this through opening is provided with a circumferential groove 41, which opens into the interior of the base body 43. From the base body 43, a tube 44 is made, the interior of which adjoins the cavity delimited by the aforementioned groove 41. The other end of this tube 44 passes through the wall of the first tube 17 of the connecting piece 12 according to FIGS. 1 and 2 and it opens into the suction channel 13. The end of the connecting tube located in the wall of the first tube 17 of the connecting piece 12 44 is provided with a seal 45 so that no ambient air can be drawn in at this point. Between the cylinder head E and the base body 43 there are sealing sleeves 46 and 47 lying one on top of the other. In a recess 48 in the opposite end part of the base body 43 there are two further sealing sleeves 49 and 50, which are compressed between the base body 43 and a counterpart 51, which on the Cylinder 1 rests and protrudes into the recess 48.

Wenn der Zylinderkopf 6 mit Hilfe von nicht dargestellten Befestigungsmitteln gegen den Zylinder 1 gedrückt wird, liegen die Dichtmanschetten 46, 47, 49 und 50 am Kolben dicht an. Das Fluid, das unter Umständen bis in die Zone der Nut 41 gelangt, die hinter dem ersten Dichtungssatz 46, 47 liegt, wird von hier unter der Einwirkung des Unterdrukkes im Saugkanal 13 aus der Nut 41 durch das Verbindungsrohr 44 angesaugt und in den Zylinderkopf 6 zurückgeführt. Die Dichtmanschetten 49 und 50 des unteren Dichtungssatzes sollen noch zusätzlich sicherstellen, dass das Fluid zum Exzenter 3 nicht gelangt. Diese Dichtungsmanschetten 49 und 50 sollen jedoch auch sicherstellen, dass möglichst kein Schmiermittel vom Exzenter 3 in den Kolben-Zylinderraum gelangt.If the cylinder head 6 is pressed against the cylinder 1 with the aid of fastening means (not shown), the sealing sleeves 46, 47, 49 and 50 lie tight against the piston. The fluid, which possibly reaches the zone of the groove 41 which lies behind the first gasket set 46, 47, is sucked from here under the action of the underpressure in the suction channel 13 out of the groove 41 through the connecting pipe 44 and into the cylinder head 6 returned. The sealing sleeves 49 and 50 of the lower seal set should additionally ensure that the fluid does not reach the eccentric 3. However, these sealing sleeves 49 and 50 are also intended to ensure that as little lubricant as possible gets into the piston-cylinder space from the eccentric 3.

Oft wird verlangt, dass dem Fluid ein anderer Stoff, wie z.B. eine Chemikalie oder ein Waschmittel in einem ganz bestimmten Verhältnis beigemischt wird. Dies kann man in einer einfachen Weise erreichen, wenn man im Saugkanal 13 ein Rohr 51 anordnet, dessen äusseres Ende 52 über eine Dosiervorrichtung an einen Vorratsbehälter (nicht dargestellt) für den beizumischenden Stoff angeschlossen ist. Die Mündung des sich im Saugkanal 13 befindlichen Endes 53 des Beimischrohres 51 liegt in derselben Ebene wie die Mündung des Saugkanals 13, der das Ventil 8 zugeordnet ist. Die Verminderung des Querschnittes der genannten Mündung des Saugkanals 13, die durch die Anwesenheit des inneren Endes 53 des Beimischrohres 51 in der Mündung des Saugrohres 13 bewirkt wird, hat einen Druckabfall vor der Mündung des Beimischrohres 51 zur Folge. Dieser Unterdruck ermöglicht, dass der beizumischende Stoff aus dem Vorratsbehälter in den Saugkanal 13 und somit auch in das Fluid eingeführt wird.It is often required that another substance, e.g. a chemical or detergent is mixed in a specific ratio. This can be achieved in a simple manner if a tube 51 is arranged in the suction channel 13, the outer end 52 of which is connected via a metering device to a storage container (not shown) for the substance to be mixed. The mouth of the end 53 of the mixing tube 51 located in the suction channel 13 lies in the same plane as the mouth of the suction channel 13 to which the valve 8 is assigned. The reduction in the cross section of the aforementioned mouth of the suction channel 13, which is brought about by the presence of the inner end 53 of the mixing tube 51 in the mouth of the suction tube 13, results in a pressure drop before the mouth of the mixing tube 51. This negative pressure enables the substance to be mixed to be introduced from the storage container into the suction channel 13 and thus also into the fluid.

Claims (16)

1. Kolbenmaschine, mit wenigstens zwei Zylindern (1), mit Saug- und Druckventilen (8,9), die paarweise den Zylindern zugeordnet sind, und mit einer Saug- und einer Druckleitung, die über die genannten Ventile an die Zylinder angeschlossen sind, dadurch gekennzeichnet, dass zwischen den Leitungen und den Ventilen (8,9) ein Verbindungsstück (12; 35,36,37,39,40) geschaltet ist, in dem die die jeweilige Leitung mit den zugehörigen Ventilen (8,9) verbindenden Kanäle (13,14) ausgeführt sind.1. piston machine, with at least two cylinders (1), with suction and pressure valves (8, 9), which are assigned to the cylinders in pairs, and with a suction and a pressure line, which are connected to the cylinders via the named valves, characterized in that between the lines and the valves (8,9) a connecting piece (12; 35,36,37,39,40) is connected in which the channels connecting the respective line with the associated valves (8,9) (13, 14). 2. Kolbenmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Kanäle (13,14) im Verbindungsstück (12) geradlinig oder sternförmig verlaufen.2. Piston machine according to claim 1, characterized in that the channels (13, 14) in the connecting piece (12) run in a straight line or in a star shape. 3. Kolbenmaschine nach Anspruch 2, dadurch gekennzeichnet, dass der Saugkanal (13) und der Druckkanal (14), die die Verbindung zwischen einem der Zylinder (1) und der Saug- sowie der Druckleitung ermöglichen, zwischen sich einen Winkel schliessen, dass die äussere Endpartie dieser Kanäle (13,14) zum Anschluss an den diesen zugeordneten Zylinder (l) ausgebildet ist und dass zwischen der äusseren Endpartie der Kanäle und dem Zylinder das jeweilige Ventilpaar (8,9) geklemmt ist.3. Piston machine according to claim 2, characterized in that the suction channel (13) and the pressure channel (14), which enable the connection between one of the cylinders (1) and the suction and pressure line, make an angle between them that the outer end part of these channels (13, 14) is designed for connection to the cylinder (I) assigned to them and that the respective valve pair (8, 9) is clamped between the outer end part of the channels and the cylinder. 4. Kolbenmaschine nach Anspruch 3, dadurch gekennzeichnet, dass die äussere Endpartie der Kanäle (13,14) an der Seitenwand oder an der Stirnwand (31) des Zylinderkopfes (6) angeschlossen ist.4. Piston machine according to claim 3, characterized in that the outer end part of the channels (13, 14) is connected to the side wall or to the end wall (31) of the cylinder head (6). 5. Kolbenmaschine nach Anspruch 1, dadurch gekennzeichnet, dass im Verbindungsstück (12) ein Hohlraum (15) ausgebildet ist, dass in diesen Hohlraum die Saugkanäle (13) münden, und dass das Verbindungsstück (12) im Bereich dieses Hohlraumes (15) mit einer Gewindehülse (16) zum Anschluss der Saugleitung versehen ist.5. Piston machine according to claim 1, characterized in that a cavity (15) is formed in the connecting piece (12) that the suction channels (13) open into this cavity, and that the connecting piece (12) in the region of this cavity (15) a threaded sleeve (16) for connecting the Suction line is provided. 6. Kolbenmaschine nach Anspruch 1, dadurch gekennzeichnet, dass die Druckkanäle (14) strömungsmässig untereinander verbunden sind, und dass einer dieser Kanäle eine Oeffnung (23) aufweist, die den Austritt des Fluids aus der Maschine ermöglicht.6. Piston machine according to claim 1, characterized in that the pressure channels (14) are connected to one another in terms of flow, and that one of these channels has an opening (23) which enables the fluid to exit the machine. 7. Kolbenmaschine nach den Ansprüchen 3 und 6, dadurch gekennzeichnet, dass jener Saugkanal (13), der an denselben Zylinder (1) angeschlossen ist wie der mit der Austrittsöffnung (23) versehene Druckkanal (14), mit einer Oeffnung (26) versehen ist, dass diese Oeffnungen (23 und 26) mittels einer by-pass-Vorichtung miteinander verbunden sind, und dass an diese by-pass-Vorrichtung die Druckleitung angeschlossen ist.7. Piston machine according to claims 3 and 6, characterized in that that suction channel (13) which is connected to the same cylinder (1) as the pressure channel (14) provided with the outlet opening (23), is provided with an opening (26) is that these openings (23 and 26) are connected to one another by means of a by-pass device, and that the pressure line is connected to this by-pass device. 8. Kolbenmaschine nach Anspruch 1, dadurch gekennzeichnet, dass das Verbindungsstück (12) aus zwei Sätzen von Rohren (17 und 18) besteht, und dass in einem dieser Rohrsätze die Saugkanäle (13) und ir anderen dieser Rohrsätze die Druckkanäle (14) ausgeführt sind.8. Piston machine according to claim 1, characterized in that the connecting piece (12) consists of two sets of tubes (17 and 18), and that in one of these tube sets, the suction channels (13) and in other of these tube sets, the pressure channels (14) are. 9. Kolbenmaschine nach Anspruch 8, dadurch gekennzeichnet, dass die zwei Sätze von Rohren (17,18) konzentrisch angeordnet sind, und dass diese zwei Rohrsätze in ihrem mittleren Bereich miteinander fest verbunden sind.9. Piston machine according to claim 8, characterized in that the two sets of tubes (17, 18) are arranged concentrically, and that these two tube sets are firmly connected to one another in their central region. 10. Kolbenmaschine nach Anspruch 3, dadurch gekennzeichnet, dass die äussere Endpartie des jeweiligen Kanalpaares einen Flansch (19) aufweist, dass der Zylinder (1) ebenfalls mit einem Flansch (7) versehen ist, und dass zwischen diesen Flanschen (7,19) das jeweilige Ventilpaar (8,9) geklemmt ist.10. Piston machine according to claim 3, characterized in that the outer end part of the respective channel pair has a flange (19), that the cylinder (1) is also provided with a flange (7), and that between these flanges (7, 19) the respective valve pair (8,9) is clamped. 11. Kolbenmaschine nach Anspruch 1, dadurch gekennzeichnet, dass an den Innenraum (41) des Zylinders (1) sich ein Verbindungsrohr (44) anschliesst, das andernends in den Saugkanal (13) mündet.11. Piston machine according to claim 1, characterized in that that a connecting tube (44) connects to the interior (41) of the cylinder (1), which ends at the other end in the suction channel (13). 12. Kolbenmaschine nach Anspruch 11, dadurch gekennzeichnet, dass das Verbindungsrohr (44) sich an jener Stelle an den Zylinder (1) anschliesst, wo sich die Kolbendichtung (42) befindet.12. Piston machine according to claim 11, characterized in that the connecting tube (44) connects to the cylinder (1) at that point where the piston seal (42) is located. 13. Kolbenmaschine nach Anspruch 1, dadurch gekennzeichnet, dass in den Saugkanal (13) ein Beimischrohr (51) ragt und dass das ausserhalb des Saugkanals (13) liegende Ende (52) des Beimischrohres (51) an einen Behälter für einen dem Fluid beizumischenden Stoff angeschlossen ist.13. Piston machine according to claim 1, characterized in that in the suction channel (13) a mixing tube (51) protrudes and that the outside of the suction channel (13) end (52) of the mixing tube (51) to a container for one to be mixed with the fluid Fabric is attached. 14. Kolbenmaschine nach Anspruch 13, dadurch gekennzeichnet, dass die Mündung des sich im Saugkanal (13) befindlichen Endes (53) des Beimischrohres (51) in derselben Ebene liegt wie die Mündung des Saugkanals (13), an die sich das Saugventil (8) anschliesst.14. Piston machine according to claim 13, characterized in that the mouth of the end (53) of the mixing tube (51) located in the suction channel (13) lies in the same plane as the mouth of the suction channel (13) to which the suction valve (8 ) connects. 15. Kolbenmaschine nach Anspruch 1, dadurch gekennzeichnet, dass dem jeweiligen Zylinderkopf (6) der Maschine ein Formstück (35,36,37) zugeordnet ist, dass zwischen diesen Formstücken (35,36,37) und dem jeweiligen Zylinderkopf (6) sich die Ventile (8,9) befinden, dass in den Formstücken (35,36, 37) Saug- und Druckkanäle (13,14) ausgeführt sind und dass die Formstücke (35,36,37) untereinander mit Hilfe von Rohren (39,40) verbunden sind, deren Endpartien sich in den Formstücken (35,36,37) befinden.15. Piston machine according to claim 1, characterized in that the respective cylinder head (6) of the machine is assigned a fitting (35,36,37) that between these fittings (35,36,37) and the respective cylinder head (6) the valves (8, 9) have suction and pressure channels (13, 14) in the fittings (35, 36, 37) and that the fittings (35, 36, 37) can be connected to one another with the help of pipes (39, 40) are connected, the end parts of which are located in the shaped pieces (35, 36, 37). 16. Kolbenmaschine nach Anspruch 15, dadurch gekennzeichnet, dass eines der Formstücke (37) derart ausgebildet ist, dass es die Endpartien jener Rohre (39,40) aufnehmen kann, deren andere Endpartien sich in den übrigen Formstücken (35,36) befinden.16. Piston machine according to claim 15, characterized in that one of the fittings (37) is designed such that it can accommodate the end portions of those tubes (39, 40) whose other end portions are in the other fittings (35, 36).
EP83106082A 1982-07-15 1983-06-22 Piston machine kaving cylinders in star-arrangement Expired EP0099000B1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AT83106082T ATE39166T1 (en) 1982-07-15 1983-06-22 PISTON MACHINE WITH STAR CYLINDERS.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH4295/82 1982-07-15
CH429582 1982-07-15

Publications (3)

Publication Number Publication Date
EP0099000A2 true EP0099000A2 (en) 1984-01-25
EP0099000A3 EP0099000A3 (en) 1984-10-17
EP0099000B1 EP0099000B1 (en) 1988-12-07

Family

ID=4273432

Family Applications (1)

Application Number Title Priority Date Filing Date
EP83106082A Expired EP0099000B1 (en) 1982-07-15 1983-06-22 Piston machine kaving cylinders in star-arrangement

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US (1) US4545732A (en)
EP (1) EP0099000B1 (en)
AT (1) ATE39166T1 (en)
DE (1) DE3378649D1 (en)
SU (1) SU1347871A3 (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL8501315A (en) * 1985-05-08 1986-12-01 Multinorm Bv PUMP.
DE9213982U1 (en) * 1992-10-16 1993-08-12 Wap Reinigungssysteme Gmbh & Co, 89287 Bellenberg Water distribution of a radial piston pump for high pressure cleaning applications
USD380525S (en) * 1994-05-31 1997-07-01 Tetra Laval Holdings & Finance S.A. Connection piece for milk pipeline valve
AT3212U1 (en) * 1998-05-22 1999-11-25 Weber Hydraulik Gmbh RADIAL PISTON PUMP
US20130195700A1 (en) * 2012-02-01 2013-08-01 Min-Chien Teng Pressurizing pump structure
US20230012012A1 (en) * 2019-12-05 2023-01-12 Ferroni Transmission S.R.L. A pump adapted to exert a compression action on a fluid and motor actuated by a corresponding propulsion fluid

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191001519A (en) * 1910-01-20 1910-10-06 James Compton Merryweather Improvements in Pumps.
US2545791A (en) * 1944-10-13 1951-03-20 Joy Mfg Co Fluid compressor
FR1355894A (en) * 1963-03-22 1964-03-20 John Deere Lanz Ag Automatic regulator for piston pumps, especially for radial piston pumps
DE1703372A1 (en) * 1968-05-09 1972-03-23 Heilmeier & Weinlein Radial piston pump
FR2182468A5 (en) * 1972-04-27 1973-12-07 Abex Corp
DE2336147A1 (en) * 1973-07-16 1975-01-30 Wepuko Hydraulik Gmbh DEVICE FOR HYDRAULIC PISTON SEALING IN HIGH PRESSURE PISTON PUMPS
DE2753370A1 (en) * 1977-11-30 1979-05-31 Oberdorfer Guido PISTON PUMP

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US790624A (en) * 1904-06-08 1905-05-23 Clarence Fancher Wood-grinder.
FR351803A (en) * 1905-02-25 1905-07-26 Eugene Koch Rotary motor
US978258A (en) * 1909-02-17 1910-12-13 Zimmer Vacuum Renovator Company Air-pumping apparatus.
FR538375A (en) * 1919-10-15 1922-06-08 Compressor arrangement for refrigeration machines and other applications
GB341667A (en) * 1929-01-23 1931-01-22 Rene Paul Automatic variable output compressor
US2255851A (en) * 1940-10-21 1941-09-16 Radial Pump And Compressor Com Pump assembly
US2539277A (en) * 1945-03-09 1951-01-23 Martin A High Variable stroke pump
US2683422A (en) * 1950-05-19 1954-07-13 Jr Albert Z Richards Rotary engine or compressor
US2801596A (en) * 1953-04-02 1957-08-06 Sewell Ronald Percival Multi-cylinder pump
US2945451A (en) * 1953-04-20 1960-07-19 David E Griswold Hydraulic motor and/or pump
FR1191147A (en) * 1958-02-06 1959-10-16 Fabre Ulysse Ets Three piston pump
US2978149A (en) * 1959-12-18 1961-04-04 Rosen Sidney Variable pressure suck-back device for a pump
US4381179A (en) * 1980-10-31 1983-04-26 Lear Siegler, Inc. Pumps with floating wrist pins

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB191001519A (en) * 1910-01-20 1910-10-06 James Compton Merryweather Improvements in Pumps.
US2545791A (en) * 1944-10-13 1951-03-20 Joy Mfg Co Fluid compressor
FR1355894A (en) * 1963-03-22 1964-03-20 John Deere Lanz Ag Automatic regulator for piston pumps, especially for radial piston pumps
DE1703372A1 (en) * 1968-05-09 1972-03-23 Heilmeier & Weinlein Radial piston pump
FR2182468A5 (en) * 1972-04-27 1973-12-07 Abex Corp
DE2336147A1 (en) * 1973-07-16 1975-01-30 Wepuko Hydraulik Gmbh DEVICE FOR HYDRAULIC PISTON SEALING IN HIGH PRESSURE PISTON PUMPS
DE2753370A1 (en) * 1977-11-30 1979-05-31 Oberdorfer Guido PISTON PUMP

Also Published As

Publication number Publication date
ATE39166T1 (en) 1988-12-15
EP0099000A3 (en) 1984-10-17
SU1347871A3 (en) 1987-10-23
US4545732A (en) 1985-10-08
EP0099000B1 (en) 1988-12-07
DE3378649D1 (en) 1989-01-12

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