[go: up one dir, main page]
More Web Proxy on the site http://driver.im/

EP2753860A1 - Unité de lubrification mobile et procédé pour créer un flux de lubrification à haute pression - Google Patents

Unité de lubrification mobile et procédé pour créer un flux de lubrification à haute pression

Info

Publication number
EP2753860A1
EP2753860A1 EP11754825.5A EP11754825A EP2753860A1 EP 2753860 A1 EP2753860 A1 EP 2753860A1 EP 11754825 A EP11754825 A EP 11754825A EP 2753860 A1 EP2753860 A1 EP 2753860A1
Authority
EP
European Patent Office
Prior art keywords
lubrication
piston
mobile
unit
cylinder
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.)
Withdrawn
Application number
EP11754825.5A
Other languages
German (de)
English (en)
Inventor
Lars Birkkjaer Nielsen
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.)
Your Global Solution APS
Original Assignee
Your Global Solution APS
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 Your Global Solution APS filed Critical Your Global Solution APS
Publication of EP2753860A1 publication Critical patent/EP2753860A1/fr
Withdrawn legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N13/00—Lubricating-pumps
    • F16N13/02—Lubricating-pumps with reciprocating piston
    • 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
    • F04B1/02—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having two cylinders
    • 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
    • F04B17/00—Pumps characterised by combination with, or adaptation to, specific driving engines or motors
    • F04B17/06—Mobile combinations
    • 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
    • F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
    • F04B53/18—Lubricating
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N29/00—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems
    • F16N29/02—Special means in lubricating arrangements or systems providing for the indication or detection of undesired conditions; Use of devices responsive to conditions in lubricating arrangements or systems for influencing the supply of lubricant
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N2210/00—Applications
    • F16N2210/02—Turbines
    • F16N2210/025—Wind Turbines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N2250/00—Measuring
    • F16N2250/04—Pressure
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N2270/00—Controlling
    • F16N2270/20—Amount of lubricant
    • F16N2270/30—Amount of lubricant intermittent
    • F16N2270/48—Amount of lubricant intermittent pressure-controlled
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16N—LUBRICATING
    • F16N2270/00—Controlling
    • F16N2270/60—Pressure
    • F16N2270/62—Limit

Definitions

  • the invention relates to mobile lubrication unit according to the preamble of claim 1 and a method for creating a high-pressure flow of lubrication.
  • An object of the invention is therefore to provide for a lubrication technique that is durable and cost-efficient.
  • the invention provides for a mobile lubrication unit comprising at least one motor driving at least one reciprocating positive displacement pump.
  • the reciprocating positive displacement pump comprises a lubrication inlet, a piston rod acting on a piston, which is fitted inside a corresponding cylinder so that a cylinder chamber is established inside the cylinder in front of the piston.
  • the cylinder chamber is also provided with a lubrication outlet.
  • the mobile lubrication unit is characterized in that the piston rod and/or the piston comprises at least one conduit for establishing fluid communication between the lubrication inlet and the cylinder chamber.
  • the piston rod and/or the piston comprises at least one conduit for establishing fluid communication between the lubrication inlet and the cylinder chamber.
  • the piston and/or the piston rod would block the inlet when it has moved down a bit.
  • the distance between the inlet and the top of the cylinder chamber i.e. the front of the piston
  • a seal would constantly have to pass the edge of the inlet which quickly will wear the seal and the seal would be located in the "heart" of the pump making it difficult to replace.
  • the piston rod and/or the piston with a passage through which the lubrication can be fed to the cylinder chamber, it is possible to move the lubrication inlet away from the top of the cylinder chamber (i.e. the front of the piston), thus enabling that the drop of pressure between the cylinder chamber and the lubrication inlet is so high that substantially no or only very small amounts of lubrication is forced out of the inlet even if the inlet is not provided with a one way valve and even if the piston is not provided with a seal.
  • reciprocating positive displacement pump is to be understood any kind of pump causing a fluid to move by use one or more oscillating pistons, plungers or membranes. The term does not include rotary pumps where the fluid is moved by the principles of rotation.
  • said piston rod and said piston are formed integrally as one monolithic component.
  • Forming the piston rod and the piston as one piece is advantageous in that it reduces the number of components in the lubrication unit, it reduces production costs and it provides for a simple pump design.
  • said at least one conduit is formed as an axial bore in said piston rod and/or said piston, said axial bore being in fluid communication with one or more radial bores.
  • Establishing the fluid communication by means of an axial bore connected to one or more radial bores in the piston rod and/or in the piston is advantageous in that the lubrication inlet can be moved relatively far away from the cylinder chamber and the access between the two is almost none-exciting after the piston has moved the radial bores past the lubrication inlet, whereby ensuring a high pressure drop between the lubrication inlet and the cylinder chamber without the use of one-way valves or dedicated seals, which provides for a simple, efficient and inexpensive pump.
  • said at least one conduit is formed as one or more channels in the outer surface of said piston rod and/or said piston.
  • Channels in the piston surface substantially provide the same effect as the abovementioned axial and radial bores.
  • the outer diameter of said piston rod is equal to the outer diameter of said piston.
  • Making the piston have the same outer diameter as the piston rod is advantageous in that it provides for a simple pump design and in that it enables easy assembly and dismantling of the piston and piston rod in that the equal diameters enables that the piston can be pulled out of the pump through the same bore as the piston rod.
  • the outer diameter of said piston rod is substantially equal to the inner diameter of said cylinder.
  • said lubrication outlet is connected to a pressure gauge.
  • the lubrication outlet with a pressure gauge so that the unit can either manually or automatically be switched of if a predetermined upper pressure level is reached.
  • said lubrication outlet is connected to a volume gauge.
  • said volume gauge comprises a switch arranged for being activated by a movable piston, wherein said movable piston is arranged to be moved by incoming lubrication.
  • Making the volume gauge comprises a switch which detects a position of a movable piston, makes it easy to calculate the volume passing the volume gauge by multiplying the number of signals from the switch with the given volume delivered per full movement of the piston.
  • said mobile lubrication unit further comprises a controller comprising means for controlling the operation of said motor.
  • said controller comprises means for at least partly controlling the operation of said motor on the basis of input from said pressure gauge and/or said volume gauge.
  • Controlling the operation of the motor on the basis of input from the pressure gauge and/or the volume gauge is advantageous in that in that it thereby is possible to ensure that the unit is not exposed to damaging overloads and it is possible to ensure that exactly an predetermined amount is delivered - thus, reducing cost.
  • said controller further comprises an input panel for inputting operational parameters. Providing the controller with an input panel enables that an operator can set a desired operational pressure, a desired maximum pressure, a desired amount or other operational parameters thereby ensure higher efficiency and more diverse use of the lubrication unit.
  • said controller comprises means for at least partly controlling the operation of said motor on the basis of said operational parameters.
  • said mobile lubrication unit has a capacity of between 0.05 and 5, preferably between 0.1 and 2 and most preferred between 0.1 and 1 litre/min.
  • the lubrication unit Since the lubrication unit is mobile it has to deliver the desired amount of lubrication very fast at least compared to the capacity of commonly known central lubrication systems and it is therefore advantageous that the desired amount of lubrication is delivered fast so that the mobile lubrication unit can be put to use elsewhere. However, if the lubrication is delivered too fast the pump could become too big and heavy to be handled by one person. Thus, the present capacity ranges presents an advantageous relationship between efficiency and size.
  • said motor is connected to a camshaft and wherein a cam on said camshaft drives said piston rod at least in one direction.
  • Actuating the piston rod by means of a cam is advantageous in that a cam can enable complex motion patterns according to the peripheral contour of the cam.
  • said cam acts on said piston through a bearing.
  • Making the cam act on the piston through a bearing is advantageous in that the bearing will reduce the friction thereby reducing power consumption and increasing the life of the unit.
  • a spring drives said piston at least in one direction.
  • said motor is an electric motor.
  • said reciprocating positive displacement pump comprises at least two pistons fitted inside corresponding cylinders.
  • Making the displacement pump comprises at least two individual pistons and cylinders is advantageous in that it provides for a more efficient and fast pump having a more continuous output flow.
  • said at least two pistons fitted inside said corresponding cylinders are arranged in parallel.
  • the invention further provides for a method for creating a high-pressure flow of lubrication.
  • the method comprises the steps of: forcing a piston in a direction out of a corresponding cylinder so that a vacuum is created in a cylinder chamber in front of the piston inside the cylinder,
  • Drawing the lubrication portion into the cylinder chamber through a conduit in a piston rod and/or in the piston is advantageous in that it hereby is possible to move the lubrication inlet relatively far away from the cylinder chamber to thereby ensure a high pressure drop between the two and consequently a durable and cost-efficient pumping method.
  • said fluid communication is cut off at the first part of said pistons travel into said cylinder.
  • Cutting the fluid communication off at the first part of pistons travel is advantageous in that the rest of the travel can thereby be used for generating pressure, hereby enabling a simple and efficient pump design.
  • said lubrication is a high-viscous grease with a kinematic viscosity between 5 and 22, preferably between 7 and 18 and most preferred between 10 and 16 mm 2 /s at 40°C.
  • the present viscosity ranges provides for an advantageous relationship between efficiency and usability.
  • said piston is forced in a direction into said cylinder by means of a rotating camshaft.
  • said piston is forced in a direction out said cylinder by means of a spring.
  • the operation of said piston at least partly is driven by a motor.
  • the operation of said motor is controlled by a controller at least partly on the basis of inputs regarding desired lubrication output pressure and/or desired output lubrication volume.
  • the operation of said motor is controlled by a controller at least partly on the basis of inputs regarding actual lubrication output pressure and/or actual output lubrication volume.
  • said controller will stop the operation of said motor if a measurement of said actual lubrication output pressure exceeds a predetermined maximum lubrication output pressure.
  • said controller will stop the operation of said motor if a measurement of said actual lubrication output volume exceeds or is equal to a desired output lubrication volume.
  • fig. 1 illustrates an embodiment of a mobile lubrication unit according to the invention, as seen in perspective
  • fig. 2 illustrates a first cross section of a reciprocating positive displacement pump according to the invention, as seen from the front
  • fig. 3 illustrates a cross section of a piston rod with axial and radial bore, as seen from the front
  • fig. 4 illustrates a cross section of a piston rod with channels in the outer surface, as seen from the front
  • fig. 5 a mobile lubrication unit fitted in a suitcase, as seen in perspective.
  • Fig. 1 illustrates an embodiment of a mobile lubrication unit 1 according to the invention, as seen in perspective.
  • the lubrication unit 1 comprises a geared motor 2 driving a camshaft 21 through a flexible coupling 27.
  • the motor 2 is an electrical motor but in another embodiment the camshaft 21 could be driven by a pneumatic motor, a hydraulic motor or another type of motor 2. In another embodiment the motor could be connected to the camshaft 21 directly or through meshing gears, through a belt or a chain or through other torque transferring means.
  • the lubrication unit 1 is not provided with its own power source to power the motor 2, the controller 19 and other electrically powered components of the lubrication unit 1.
  • the unit 1 is therefore provided with a socket 28 for connecting the unit 1 to an external power source such as the utility grid.
  • the lubrication unit 1 could instead or also require connection to a pressurised air supply, to a hydraulic circuit or another external power sources.
  • the lubrication unit 1 could also be provided with an internal power source such as a battery, a fuel cell, a solar panel or other which at least partly could power one or more of the power consuming components of the unit 1.
  • the camshaft 21 is provided with two cams 22 in form of to ball bearings 23 arranged eccentric to the rotational axis of the camshaft 21.
  • the number of cams 22 corresponds with the number of pistons 6 in the reciprocating positive displacement pump 3 so the number of cams can of course vary accordingly.
  • cams 22 could be formed other than circular such as oval or curved and cam 22 could be provided with another type of bearing 23 such as a needle bearing, a roller bearing or a plain bearing or the cams 22 could comprise no bearing, thus making the cams 22 act directly on the piston rods 5 or through another component.
  • the camshaft 21 and the cams 22 are provided to actuate the piston rods 5 of the displacement pump 3 but in another embodiment the piston rods 5 could be actuated differently such as by means of pneumatic, hydraulic or electrical actuators or by any other means capable of applying force to the piston rod 5 at least in one directions i.e. at least forcing the piston rod 5 into the cylinder 7 or out of the cylinder 7.
  • the inner details of the displacement pump 3 will be discussed more thoroughly in relation to fig. 2 but as shown in fig. 1 the displacement pump 3 is in this
  • a container socket 29 adapted for fixating a lubrication container (not shown) at least during the operation of the lubrication unit 1.
  • the container socket 29 is in fluid communication with a lubrication inlet 4 of the displacement pump 3.
  • the container socket 29 could be formed differently in that it e.g. could comprise a quick coupling or other means for feeding lubrication into the displacement pump 3.
  • the displacement pump 3 is also provided with a lubrication outlet 9 which is in fluid communication with a pressure gauge 17 for providing the output pressure of the lubrication.
  • the pressure gauge 17 is a pressure transmitter connected to a controller 19 but in another embodiment the pressure gauge 17 could be some sort of manual device or it could be any other type of sensor suited for measuring the pressure of lubrication.
  • volume gauge 18 which in this embodiment comprises a piston that changes its positions back and forth each time a given lubrication volume enters the volume gauge 18.
  • the volume gauge 18 is further provided with an inductive switch which registers each time the piston has moved back and forth in the volume gauge 18.
  • the output volume can be calculated by multiplying the number of signals with the given lubrication volume inside the volume gauge 18.
  • the volume gauge 18 could be measured directly or indirectly by means of a level sensor, a flow meter or another device suitable for measuring the amount of lubrication leaving the lubrication unit 1.
  • volume gauge 18 leads to a quick coupling for attaching the lubrication unit 1 to the equipment that needs lubrication.
  • the mobile lubrication unit 1 could e.g. be used for lubricating pitch, yaw and or main bearings in a wind turbine in that these large bearing requires a relatively large amount of grease at a relatively high pressure.
  • the application of the present invention is in no way limited to the field of wind turbines in that a demand for a mobile high-pressure lubrication unit also can be found in a other technical fields where moving equipment requires lubrication with high-viscous grease with a kinematic viscosity between 5 and 22, preferably between 7 and 18 and most preferred between 10 and 16 mmVs at 40°C.
  • Fig. 2 illustrates a first cross section of a reciprocating positive displacement pump 3 according to the invention, as seen from the front.
  • the pump 3 is provided with two individual parallel coupled cylinders but in another embodiment the pump 1 could comprise one, three, four, five or more individual cylinders whereof one or more could be arranged in series.
  • the left piston 6 is in this embodiment illustrated in its bottom position whereto it has been forced by the left cam 22. In this position the cylinder chamber 8 in front of the piston 6 is very small and almost all the grease has been pushed out of the cylinder 7 through the lubrication outlet 9.
  • the cam 22 will start moving upwards and because the downwards motion of the piston 6 has compressed the spring 24 the piston 6 and piston rod 5 will simultaneously also move upwards to release some of the load on the spring 24.
  • the lubrication outlet 9 is provided with a one-way valve 31 to ensure that the grease in the lubrication outlet 9 is not drawn back into the cylinder chamber 8 and since the piston rod 5 blocks the lubrication inlet 4 for the most of the pistons upwards travel a forceful vacuum is created in the cylinder chamber 8.
  • each cylinder 7 is provided with a lip seal located above the lubrication inlet 4 so that it never comes in contact with the conduits 10 in the piston or the piston rod hereby ensuring its life.
  • the piston rod 5 and the piston 6 are formed integrally as one monolithic component in that the piston 6 is constituted by the front surface of the piston rod 5.
  • the piston 6 and the piston rod 5 could be formed as two separate parts e.g. connected through a joint allowing at least some rotating between the two parts e.g. if the piston rod 5 was connected to a eccentric arranged shaft.
  • the conduits 10, creating the fluid communication between the lubrication inlet 4 and the cylinder chamber 8, would only be in the piston 6. Since the piston rod 5 and the piston 6 in this embodiment are formed by the same cylindrical rod the outer diameter 14 of the piston rod 5 is equal to the outer diameter 15 of the piston 6.
  • the diameter 14 of the piston rod 5 could be different from the outer diameter 15 of the piston 6.
  • the outer diameter 14 of the piston rod 5 could be very different from the inner diameter 16 of the cylinder 7 e.g. if the piston 6 and the piston rod 5 was formed as two separate parts.
  • the lubrication outlet 9 is provided with a pressure gauge which ensures that the operation of the motor is stopped if the output pressure exceeds a predefined level.
  • the pump 3 is in this embodiment also provided with a pressure activated pressure release valve (not shown) what will open a fluid communication between the lubrication outlet 9 and the lubrication inlet 4 if the pressure at the valve exceeds an inherent predefined activation pressure.
  • Fig. 3 illustrates a cross section of a piston rod 5 with axial 1 1 and radial bore 12, as seen from the front.
  • piston rod 5 is provided with a conduit 10 in the form of one centrally arranged coaxial axial bore 11 and two transversal radial through bores 12 but in another embodiment the piston rod 5 and/or the piston 6 could be provided with another number of bores 1 1 , 12 and the bores 1 1 , 12 could be arrange differently.
  • Fig. 4 illustrates a cross section of a piston rod 5 with channels 25 in the outer surface 13, as seen from the front.
  • the piston rod 5 and/or the piston 6 could be provided with a number of channels 25 in the surface 13 of the piston rod 5 and/or piston 6 to form the conduits 10.
  • two channels 25 are provided but in another embodiment the piston rod 5 and/or the piston 6 could be provided with another number of conduits such as one, three, four or more.
  • Fig. 5 a mobile lubrication unit 1 fitted in a suitcase 26, as seen in perspective.
  • the suitcase can be fitted with a Perspex plate (not shown) having openings for the container socket 29, the socket 28, the quick coupling and the input panel 20 so that the rotating and power conducting parts of the unit 1 can not be reached by the operator. Furthermore the suitcase 26 is provided with a lid (not shown).

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Reciprocating Pumps (AREA)

Abstract

L'invention porte sur une unité de lubrification mobile (1) comprenant au moins un moteur électrique (2) qui entraîne au moins une pompe alternative à déplacement positif (3). La pompe alternative à déplacement positif (3) comprend une entrée de lubrification (4), une tige de piston (5) agissant sur un piston (6), qui est logé à l'intérieur d'un cylindre correspondant (7), de telle sorte qu'une chambre de cylindre (8) est établie à l'intérieur du cylindre (7) en avant du piston (6). La chambre de cylindre (8) comporte aussi une sortie de lubrification (9). L'unité de lubrification mobile (1) est caractérisée en ce que la tige de piston (5) et/ou le piston (6) comprennent au moins un conduit (10) servant à établir une communication fluidique entre l'entrée de lubrification (4) et la chambre de cylindre (8). En outre, l'invention porte aussi sur un procédé pour créer un flux de lubrification à haute pression.
EP11754825.5A 2011-09-06 2011-09-06 Unité de lubrification mobile et procédé pour créer un flux de lubrification à haute pression Withdrawn EP2753860A1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/DK2011/000099 WO2013034154A1 (fr) 2011-09-06 2011-09-06 Unité de lubrification mobile et procédé pour créer un flux de lubrification à haute pression

Publications (1)

Publication Number Publication Date
EP2753860A1 true EP2753860A1 (fr) 2014-07-16

Family

ID=44587584

Family Applications (1)

Application Number Title Priority Date Filing Date
EP11754825.5A Withdrawn EP2753860A1 (fr) 2011-09-06 2011-09-06 Unité de lubrification mobile et procédé pour créer un flux de lubrification à haute pression

Country Status (2)

Country Link
EP (1) EP2753860A1 (fr)
WO (1) WO2013034154A1 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20230003341A1 (en) * 2019-12-09 2023-01-05 Hove A/S Pressure controlled grease pump
EP4399432A1 (fr) * 2021-09-10 2024-07-17 Hove A/S Dispositif de lubrification de classe ii portatif

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682273A (en) * 1970-10-20 1972-08-08 Eusebe Allard Lubricating apparatus for heavy machinery
EP1362993A1 (fr) * 2002-05-15 2003-11-19 Dana Automotive Limited Système de lubrification pour moteur à combustion

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE837344C (de) * 1950-12-24 1952-04-28 Eugen Woerner Aus Zylinder und Kolben bestehendes Hochdruck-Pumpenelement fuer Schmierpumpen
DE3102506C2 (de) * 1981-01-27 1985-06-20 Pierburg Gmbh & Co Kg, 4040 Neuss Kolbenpumpe mit geregelter Förderleistung
DE3924118A1 (de) * 1989-07-20 1991-01-31 Horst Paepke Schmiereinrichtung fuer maschinen
US20050194407A1 (en) * 2001-06-29 2005-09-08 Bach David T. Precision fluid dispensing system
ITMI20062003A1 (it) * 2006-10-18 2008-04-19 Sunbird Invest Ltd Pompa ad alta pressione per lubrificante per acciaierie
CN201546610U (zh) * 2009-09-16 2010-08-11 中国石油化工集团公司 潜孔空气锤润滑注油机
DK200900197Y6 (da) 2009-12-01 2013-08-23 Hove As Fedtsmøreapparat

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3682273A (en) * 1970-10-20 1972-08-08 Eusebe Allard Lubricating apparatus for heavy machinery
EP1362993A1 (fr) * 2002-05-15 2003-11-19 Dana Automotive Limited Système de lubrification pour moteur à combustion

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
See also references of WO2013034154A1 *

Also Published As

Publication number Publication date
WO2013034154A1 (fr) 2013-03-14

Similar Documents

Publication Publication Date Title
CN101607390B (zh) 电动压接工具设备
WO2013177268A1 (fr) Compresseur de gaz
CN104373575A (zh) 立式减速机自动润滑装置
CN108700058A (zh) 用于可下潜应用的线性液压泵
WO2013034154A1 (fr) Unité de lubrification mobile et procédé pour créer un flux de lubrification à haute pression
CN202733390U (zh) 一种万向轴自动润滑系统
CN201827627U (zh) 高效轻型高压黄油注油机
CN103228917A (zh) 可变排量的润滑剂泵
CN202811242U (zh) 一种高压往复泵
EP3112677A3 (fr) Appareil de génération de puissance à énergie renouvelable, contrôleur de moteur et procédé d'utilisation d'un appareil de génération d'énergie à énergie renouvelable
RU92698U1 (ru) Насос буровой трехпоршневой одностороннего действия типа 8т-650
CN201588754U (zh) 一种手动泵
CN210829625U (zh) 一种用于多泵头联动的驱动装置
CN204025048U (zh) 一种旋转式空压机
CN103486423A (zh) 一种万向接轴自润滑装置
CN204003305U (zh) 液压泵以及具有该液压泵的液压设备
CN218177378U (zh) 多功能智能高压柱塞装置
CN208853486U (zh) 一种方向可调式不锈钢钢带卷板机
CN104500363B (zh) 具有润滑系统的柱塞泵
CN203925968U (zh) 一种可调排量柱塞往复泵的动力端
CN103133291A (zh) 超高压径向柱塞泵
CN204402783U (zh) 具有润滑系统的柱塞泵
CN204113568U (zh) 无油活塞二级压缩装置
RU159804U1 (ru) Трехпоршневой буровой насос одностороннего действия
CN104895754B (zh) 一种轴向柱塞与径向柱塞复合的液压泵

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20140327

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

DAX Request for extension of the european patent (deleted)
17Q First examination report despatched

Effective date: 20150204

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: THE APPLICATION IS DEEMED TO BE WITHDRAWN

18D Application deemed to be withdrawn

Effective date: 20150616