CN1926332A - Axial piston machine - Google Patents
Axial piston machine Download PDFInfo
- Publication number
- CN1926332A CN1926332A CNA2005800067689A CN200580006768A CN1926332A CN 1926332 A CN1926332 A CN 1926332A CN A2005800067689 A CNA2005800067689 A CN A2005800067689A CN 200580006768 A CN200580006768 A CN 200580006768A CN 1926332 A CN1926332 A CN 1926332A
- Authority
- CN
- China
- Prior art keywords
- control panel
- axial piston
- pressure
- cylinder
- piston machine
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- 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.)
- Pending
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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
- F04B1/12—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis
- F04B1/20—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block
- F04B1/22—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons
- F04B1/24—Multi-cylinder machines or pumps characterised by number or arrangement of cylinders having cylinder axes coaxial with, or parallel or inclined to, main shaft axis having rotary cylinder block having two or more sets of cylinders or pistons inclined to the main shaft axis
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention relates to an axial piston machine comprising two cylinder drums which are guided in a housing, can be respectively rotated about a drum axis, and are respectively supported on an inclined surface arranged in the direction of a shaft rotational axis. According to the invention, said inclined surfaces are located in the region between the two cylinder drums and the channels for supplying and releasing pressure end in said two inclined surfaces, i.e. pressure is supplied and released centrally.
Description
Technical field
The present invention relates to a kind of axial piston machine according to claim 1 preamble.
Background technique
For example comprise two cylinder barrels, in each cylinder barrel, form a plurality of cylinders from the known such axial piston machine of WO 03/058034 A1.The axle that is fixedly connected to a plurality of pistons passes this two cylinder barrels, and described piston utilizes the cylinder of cylinder barrel to limit separately pressure chamber.Cylinder barrel is supported on the inclined surface, and this surperficial inclination is so selected, and makes the spin axis of cylinder barrel with respect to the axis tilt of described axle.Thereby the inclined surface of support cylinder tube does not rotate piston with respect to the plane experience elliptic motion trace in order to the inclined surface place of support cylinder tube with axle or cylinder barrel.In known solutions, cylinder barrel is located such that piston between two inclined surfaces, and this inclined surface forms on control panel respectively, and this control panel is supported on the housing of axial piston pump and via its supply and release pressure.
When the known axial piston machine of test, the result is as follows, promptly at the axial piston machine run duration, need take soundproof measures thereby noise emission is higher.Another shortcoming of known arrangement is, the design that the pressure feed of realizing via two external control dishes requires pressure and tank passage to have more complicated.
Summary of the invention
By contrast, basic purpose of the present invention is to provide a kind of axial piston machine, and this machine has fairly simple design, wherein compares with the prior art scheme, has reduced noise emission.
Utilization comprises that the axial piston machine of the described feature of claim 1 realized this purpose.
According to the present invention, two cylinder barrels of axial piston machine are forming on corresponding inclined surface, and wherein said inclined surface promptly arranges in the zone between these two cylinder barrels in centre, and pressure channel and tank passage end in the described inclined surface.Utilize this center arrangement mode of inclined surface, compare, significantly be convenient to pipe laying, thereby the cost of making axial piston machine is lower with the prior art scheme.Another advantage is, by this center arrangement mode, thereby balance is very little via the pressure in the inclined surface introducing housing mutually basically to act on two pressure on the inclined surface, and therefore noise emission also is minimized, and in the prior art scheme, introduce via the external control dish active force in the housing with large size noise emission surface can make that noise emission reaches can not received degree.
In a kind of compact especially modification, two end faces form on control panel, and this control panel inserts in the housing and the axle of support piston passes this control panel in centre.
In order further to reduce noise emission, can between control panel and housing, puigging be set.In this embodiment, preferably, it is that the protection part of flat is distorted preventing that control panel has form for example.
In order to prevent in housing, distortion relatively to be taken place by the control panel of elastic support, preferably in this scheme, so arrange and design the pressure port of centre, make via the pressure port pressure port on the control panel and the power of having an effect is so big particularly, refuse by in a basic balance thereby the rotation by cylinder barrel is delivered to turning round of control panel.
When this axial piston machine was operated as pump or oil hydraulic motor, control panel had the controlling component of two kidney shapes, and one of them is configured to pressure port, and another is configured to the tank mouth.In a kind of modification of the present invention, preferably, the described passage that is connected to pressure port and tank mouth is along tangentially ending in the kidney shape controlling component.
This axial piston machine can also be operated as hydraulic transformer basically.Yet this requires control panel rotatably to be contained in the housing and comprises three kidney shape controlling componenies.
Other dependent claims define the present invention other, favourable, further mode of execution.
Brief description of drawings
Below by accompanying drawing signal the preferred embodiments of the present invention, wherein:
Fig. 1 illustrates axial piston machine first embodiment's longitudinal cross-section;
Fig. 2 illustrates the simplified cross-sectional view of axial piston machine shown in Figure 1;
Fig. 3 illustrates schematic representation amplification, detailed of axial piston machine shown in Figure 1; With
Figure 4 and 5 are the schematic representation corresponding to axial piston machine second embodiment of Fig. 1 and 2.
Embodiment
In Fig. 1, illustrate by the axial piston machine 1 simplification longitudinal cross-section of oil hydraulic pump for example.Fig. 2 illustrates in Fig. 1 vertically on the geometry of dot and dash line y and coarse schematic cross-section.Therefore, this axial piston machine 1 has housing 2, wherein is formed with axis hole 4.In this axis hole, axle 6 is supported by two bearings 8,10.Described axle 6 (being live axle in pump) are supported two cylinder barrels 12,14, and its spin axis Z1 and Z2 revolve the shape axis X with respect to axle 6.
Two cylinder barrels 12,14 that tilt are supported in central authorities' (observing according to Fig. 1) and locate to be contained on the control panel 16 in the housing 2 mutually.The end face of described control panel 16 is formed by two inclined surfaces 18,20.According to Fig. 1, these inclined surfaces 18,20 tilt in such a manner mutually, thereby control panel 16 comes to a point downwards gradually from the radially top of housing 2.
Each cylinder barrel 12,14 has a plurality of cylinders 22 and 24 respectively, and piston 26,28 stretches in each cylinder.Configuration gives axis X that the piston 26 and 28 of cylinder barrel 12,14 is parallel to described axle along axial arranged and be installed on the flange 30,32 respectively, and described flange is integrally formed into or is installed on this axle with axle 6.Piston 26,28 limits separately pressure chamber 34,36 by cylinder 22,24, as is discussed in more detail below, and described pressure chamber is suitable for being connected to pressure port P (pressure port) or tank mouth T (tank port).In the cross sectional view of Fig. 2, two port T, P are arranged in the central plane with central axial line Y at cylinder casing 2 places.Two port P, T are connected to separately kidney shape controlling component (tank controlling component 42 and Pressure Control Unit 44) via tank passage 38 and pressure channel 40 respectively.According to Fig. 2, these two passages 38,40 are respectively along tangentially ending in the kidney shape controlling component 42 and 44 that is disposed.Described controlling component is partly around axle 6, thus at it between the end at Fig. 2 top and between its end in Fig. 2 bottom, keep the corresponding shoulder 46,48 of control panel 16.These two controlling componenies 42,44 end in corresponding two inclined surfaces 18,20.
As especially can be as can be seen from Figure 1, the design that axial piston machine 1 has symmetry about the Y-axis line, wherein in inclined surface 18,20 places, two cylinder barrels 12,14 are supported on these two inclined surfaces control panel 16 in center arrangement.Described cylinder barrel interacts with piston 26,28 respectively, and described piston is fixedly connected to axle 6 via flange 30 and 32 respectively.
Because the structure of these two cylinder barrels 12,14 is identical, according to the enlarged diagram of Fig. 3 that cylinder barrel 14 is shown, describes its structure detail.Accordingly, this cylinder barrel 14 has a plate 50, and this plate is supported on the inclined surface 20 of control panel 16 slidably by its end face 52 shown in the left side in Fig. 3.Tube plate 50 has installs hub 54, and this installations hub utilizes self-aligning to support member supporting such as 56 on the supporting portion 59 arch, that be convex bending of axle 6.This self-aligning supporting 56 makes the spin axis Z2 of cylinder barrel 14 tilt with respect to the axis X of axle 6.The circular cylinder 60 that is formed with the cylinder 24 of cylinder barrel 14 thereon is supported on the annular end face 58 of a plate 50, and it limits by hub 54 is installed in inside.Described cylindrical shell 60 can be made of a plurality of independently elements.From the known scheme of WO 03/058034 A1, this cylindrical shell 60 is for example formed by a plurality of cylinder sleeves, and they utilize retaining ring and interconnect.Described cylinder sleeve also can be via spring bias voltage and connection supports on tube plate 50.Basically, cylindrical shell 60 also can be integrally formed into.
As shown in Figure 3, the cylindrical shell 60 of formation cylinder 24 or its independently element do not form surperficial fully the contact with annular end face 58, contact with it but only utilize by projection 62 contact segments that form.
As mentioned above, form a plurality of cylinders 24 in cylindrical shell 60, the end of piston 28 is stretched in this cylinder, thereby utilizes cylinder 24 and piston 28 to limit corresponding pressure chamber 24,36.The pressure chamber 36 that is arranged in Fig. 3 bottom has maximum volume (piston is in its bottom dead-centre position), and in the relative position between piston 28 that is shown in Fig. 3 top and cylinder 24, pressure chamber 36 has its minimum volume (piston is in its inner dead centre position).
Pressure supplies to the described pressure chamber 36 of cylinder 24 via groove 62, described groove 62 by cylinder chamber 24 the bottom and utilize radial protrusion 64 to be supported on slidably on the interior edge face of respective cylinder 24 of cylindrical shell 60.In the base 66 of described groove 62 away from the suitable design of the end insertion tube plate 50 of radial protrusion 64.Connecting passage 68 ends in this base 66, and this connecting passage is suitable for being connected to kidney shape Pressure Control Unit 44 or tank controlling component 42 according to the rotational position of cylinder barrel 14.
Each piston 28 has mounting portion 70, and piston is supported on via this mounting portion in the flange 32 of axle 6.After this mounting portion 70, piston 28 is along radially becoming recessed and being transited into tapered portion 72, and piston 28 extends until having the maximum cross section by this part.Described maximum cross section indicates with reference character 74 in Fig. 3.After described maximum cross section 74, piston is convergent a little once more.Piston 28 this tapered shape are necessary, thus they in the inner dead centre position (Fig. 3 top) locate not collide with casing wall.According to Fig. 3, the inner peripheral surface of piston close cylinder 24 along its maximum cross section.In this contact area,, the corresponding piston ring can be set in the outer circumference of piston 28 in order to improve sealability.
When live axle 6, piston 26,28 is around this axis X rotation, and two cylinder barrels 12,14 are then respectively around its axis Z1 and Z2 rotation.In this rotatablely moved, cylinder barrel was supported on the centre panel 16.Because the inclination of cylinder barrel 12,14, the pressure chamber that is positioned at Fig. 3 top becomes big (suction) along with further rotation, following pressure chamber 36 then diminish (pressure increase).Control panel 16 is so arranged, makes kidney describe that case controlling component 42 is connected to big pressure chamber and the Pressure Control Unit 44 of change and is connected to the pressure chamber that diminishes.In the zone of dead center position (Fig. 3), the connection of leading to two port P, T is blocked by shoulder 46,48, thereby can switch between pressure port and tank mouth, and vice versa.
Because the inclination of cylinder barrel 12,14, piston 26,28 is with respect to the oval-shaped track of inclined surface 18,20 experience that is disposed.The annular end face 58 that can slip away a little compensates these relative movement thereby cylindrical shell 60 is designed so that to form the element of cylinder.
Be according to the essential distinction between the known arrangement of the solution of the present invention and description when beginning, pressure is supplied with in central authorities via control panel 16, and pass through the central set-up mode of the symmetry of control panel 16, the pressure that is transmitted by two cylinder barrels 12,14 is balanced to a great extent.The pressure that acts on the piston 26,28 is introduced in the axle 6 via flange 30,32,, does not guide this pressure via housing that is, and this housing has large-area noise emitting surface.Another substantial advantage of the present invention is, pressure fluid channel can arrange and utilize the port that is provided with in central authorities very closely at interval very simply, thereby compares with known arrangement, has simplified the structure of axial piston machine substantially.
Utilize the embodiment of Figure 4 and 5 signal, can further be reduced in the noise emission of axial piston machine run duration.
The embodiment of Figure 4 and 5 signals only is different from previous embodiment substantially aspect the design of control panel 16 and the pipe laying in the control panel 16.The structure of cylinder barrel 12,14 and axle 6 is identical with the foregoing description, therefore only describes its difference below.
In the embodiment of Figure 4 and 5 signals, control panel 16 neither is directly installed in the housing 2, also be not integrally formed into housing 2, but a member independently wherein, in installment state, forms puigging between housing 2 and control panel 16.Described layer can for example be made by the elastic synthesis material with sound damping.In order to prevent control panel 16 distortions, it is provided with flat 78; The recess 80 of housing 2 is suitably designed.Elasticity puigging 76 inserts in the described recess 80 and centers on the outer periphery of control panel 16.By eliminating the coupling of control panel 16 and housing 2, can further reduce the noise emission, particularly in abominable operational condition, yet, although this flat is set, because the elasticity of puigging 76 can produce relative distortion between control panel 16 and housing 2.In order to prevent this distortion, port T, P be located such that via two port T, P (particularly P) act on pressure on the control panel 16 can balance this turn round and refuse.Promptly, for example so the axial distance a and the cross-section area of selection pressure passage 40, make the pressure FH that passes to control panel 16 via pressure fluid at control mouthful P produce to turn round and refuse that (FH * a) acts on radial effect power and therefore and turning round of producing refused on the control panel 16 to be equilibrated at run duration.Certainly, also can take to be used to support this and turn round other measure of refusing.
The invention discloses a kind of axial piston machine, comprise two cylinder barrels, this cylinder barrel is directed in housing, can be respectively around the rotation of tube axis, and be supported on respectively on the inclined surface of arranging along the direction of the spin axis of described axle.According to the present invention, in the zone of described inclined surface between two cylinder barrels and the passage that is used for supplying with release pressure end at described two inclined surfaces, that is, supply with and release pressure in centre.
Reference numerals list
1 axial piston machine
2 housings
4 axis holes
6 axles
8 bearings
10 bearings
12 cylinder barrels
14 cylinder barrels
16 control panels
18 inclined surfaces
20 inclined surfaces
22 cylinders
24 cylinders
26 pistons
28 pistons
30 flanges
32 flanges
34 pressure chamber
36 pressure chamber
38 tank passages
40 pressure channels
42 kidneys describe the case controlling component
44 kidney shape Pressure Control Units
46 shoulders
48 shoulders
50 plates
52 end faces
54 install hub
56 self-alignings supporting
58 annular end faces
59 supporting portions
60 cylindrical shells
62 grooves
64 radial protrusions
66 bases
68 connecting passages
70 mounting portions
72 tapered portion
74 maximum cross sections
76 puiggings
78 flats
80 bases
Claims (7)
1. axial piston machine, comprise two cylinder barrels (12,14), described two cylinder barrels guide in housing (2), can be respectively around a tube axis (Z1, Z2) rotation and be supported on respectively on the inclined surface (18,20), wherein can give each cylinder barrel (12,14), wherein via pressure and tank passage (38,42 around piston (26, the 28) configuration of axis (X) rotation of tilting with respect to tube axis (Z1, Z2); 40,44; 68) pressure chamber (34,36) that is suitable for being connected to the pressure port of housing (2) and tank mouth (P, T) is respectively limited by the cylinder (22,24) and the piston (26,28) of cylinder barrel (12,14), it is characterized in that, described inclined surface (18,20) is arranged in the zone between described two cylinder barrels (12,14), and passage (38,42; 40,44) end in the described inclined surface (18,20).
2. axial piston machine according to claim 1, wherein said inclined surface (18,20) forms on the end face of control panel (16), and live axle or output shaft (6) pass this control panel.
3. axial piston machine according to claim 2 wherein forms puigging (76) between control panel (16) and housing (2).
4. according to claim 2 or 3 described axial piston machines, wherein control panel (16) has the flat (78) that is used to prevent distortion.
5. axial piston machine according to claim 4, the wherein so axial distance (a) of the central axis of selection pressure mouth (P) and the sectional area of pressure channel (40) in the transition portion between housing (2) and control panel (16), make act on the control panel (16) radial effect power and therefrom generation turn round the pressure institute balance of refusing to be acted on the control panel (16) via pressure port (P).
6. according to the described axial piston machine of each claim of front, wherein control panel (16) has the controlling component (42,44) that is positioned on the associating reference circle, and pressure port and tank mouth (P, T) end in the described controlling component.
7. according to the described axial piston machine of each claim of front, wherein this machine is operated as oil hydraulic pump or as oil hydraulic motor.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE102004010373.9 | 2004-03-03 | ||
| DE102004010373A DE102004010373A1 (en) | 2004-03-03 | 2004-03-03 | axial piston |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1926332A true CN1926332A (en) | 2007-03-07 |
Family
ID=34877304
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNA2005800067689A Pending CN1926332A (en) | 2004-03-03 | 2005-02-21 | Axial piston machine |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US20080159879A1 (en) |
| EP (1) | EP1723335A1 (en) |
| CN (1) | CN1926332A (en) |
| DE (1) | DE102004010373A1 (en) |
| WO (1) | WO2005085635A1 (en) |
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102959259A (en) * | 2010-07-06 | 2013-03-06 | 罗伯特·博世有限公司 | Hydrostatic machine, especially axial piston machine |
| CN105587480A (en) * | 2014-11-11 | 2016-05-18 | 丹佛斯有限公司 | Pump device |
| CN106567740A (en) * | 2015-10-09 | 2017-04-19 | 熵零控股股份有限公司 | Plunger fluid mechanism |
| CN106567742A (en) * | 2015-10-13 | 2017-04-19 | 熵零控股股份有限公司 | Plunger fluid mechanism |
| CN106567741A (en) * | 2015-10-10 | 2017-04-19 | 熵零控股股份有限公司 | Plunger fluid mechanism |
| CN106593536A (en) * | 2015-10-14 | 2017-04-26 | 熵零控股股份有限公司 | Small-clearance plunger fluid mechanism |
| CN106593537A (en) * | 2015-10-15 | 2017-04-26 | 熵零控股股份有限公司 | Plunger fluid mechanism |
| CN106593535A (en) * | 2015-10-14 | 2017-04-26 | 熵零控股股份有限公司 | Active driving fluid mechanism |
| CN106593800A (en) * | 2015-10-16 | 2017-04-26 | 熵零控股股份有限公司 | Positive feedback plunger fluid mechanism |
| CN106855108A (en) * | 2015-12-09 | 2017-06-16 | 熵零技术逻辑工程院集团股份有限公司 | High pressure chest energy adjustment system |
| CN107278242A (en) * | 2014-11-08 | 2017-10-20 | 蒙尼有限公司 | With the improved hydraulic machine for swinging axial cylinder body |
| CN107299843A (en) * | 2015-10-07 | 2017-10-27 | 熵零控股股份有限公司 | A kind of plunger hydraulic mechanism |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005058938A1 (en) * | 2005-11-11 | 2007-05-16 | Brueninghaus Hydromatik Gmbh | Hydrostatic piston machine |
| DE102007024174B4 (en) | 2006-12-11 | 2022-09-08 | Robert Bosch Gmbh | Axial piston machine with an anti-twist device for the control plate |
| US20110072811A1 (en) * | 2009-09-30 | 2011-03-31 | Rs Drawings, Llc | Engine driven lift gate power system |
| EP4424985A1 (en) * | 2023-03-03 | 2024-09-04 | Innas B.V. | A hydraulic transformer |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3630026A (en) * | 1969-04-15 | 1971-12-28 | Lucas Industries Ltd | Hydraulic pumps and motors |
| DE3578004D1 (en) * | 1984-02-29 | 1990-07-05 | Shimadzu Corp | AXIAL PISTON PUMP OR MOTOR WITH INCLINED AXLE. |
| US4624175A (en) * | 1985-08-28 | 1986-11-25 | Wahlmark Gunnar A | Quiet hydraulic apparatus |
| DE20015343U1 (en) * | 2000-09-05 | 2002-01-17 | Liebherr-Machines Bulle S.A., Bulle | Hydrostatic axial piston machine |
| NL1020932C2 (en) | 2002-01-12 | 2003-07-15 | Innas Bv | Hydraulic device. |
-
2004
- 2004-03-03 DE DE102004010373A patent/DE102004010373A1/en not_active Ceased
-
2005
- 2005-02-21 US US10/591,024 patent/US20080159879A1/en not_active Abandoned
- 2005-02-21 WO PCT/EP2005/001786 patent/WO2005085635A1/en not_active Application Discontinuation
- 2005-02-21 CN CNA2005800067689A patent/CN1926332A/en active Pending
- 2005-02-21 EP EP05715429A patent/EP1723335A1/en not_active Withdrawn
Cited By (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102959259B (en) * | 2010-07-06 | 2016-08-17 | 罗伯特·博世有限公司 | Hydrostatic machine, particularly axially piston machine |
| CN102959259A (en) * | 2010-07-06 | 2013-03-06 | 罗伯特·博世有限公司 | Hydrostatic machine, especially axial piston machine |
| CN107278242A (en) * | 2014-11-08 | 2017-10-20 | 蒙尼有限公司 | With the improved hydraulic machine for swinging axial cylinder body |
| CN105587480A (en) * | 2014-11-11 | 2016-05-18 | 丹佛斯有限公司 | Pump device |
| US10590920B2 (en) | 2014-11-11 | 2020-03-17 | Danfoss A/S | Pump device |
| CN105587480B (en) * | 2014-11-11 | 2019-07-12 | 丹佛斯有限公司 | Pump installation |
| CN107299843A (en) * | 2015-10-07 | 2017-10-27 | 熵零控股股份有限公司 | A kind of plunger hydraulic mechanism |
| CN106567740A (en) * | 2015-10-09 | 2017-04-19 | 熵零控股股份有限公司 | Plunger fluid mechanism |
| CN106567741A (en) * | 2015-10-10 | 2017-04-19 | 熵零控股股份有限公司 | Plunger fluid mechanism |
| CN106567742A (en) * | 2015-10-13 | 2017-04-19 | 熵零控股股份有限公司 | Plunger fluid mechanism |
| CN106593535A (en) * | 2015-10-14 | 2017-04-26 | 熵零控股股份有限公司 | Active driving fluid mechanism |
| CN106593536A (en) * | 2015-10-14 | 2017-04-26 | 熵零控股股份有限公司 | Small-clearance plunger fluid mechanism |
| CN106593537B (en) * | 2015-10-15 | 2019-04-19 | 熵零控股股份有限公司 | Plunger hydraulic mechanism |
| CN106593537A (en) * | 2015-10-15 | 2017-04-26 | 熵零控股股份有限公司 | Plunger fluid mechanism |
| CN106593800A (en) * | 2015-10-16 | 2017-04-26 | 熵零控股股份有限公司 | Positive feedback plunger fluid mechanism |
| CN106855108A (en) * | 2015-12-09 | 2017-06-16 | 熵零技术逻辑工程院集团股份有限公司 | High pressure chest energy adjustment system |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1723335A1 (en) | 2006-11-22 |
| US20080159879A1 (en) | 2008-07-03 |
| WO2005085635A1 (en) | 2005-09-15 |
| DE102004010373A1 (en) | 2005-09-22 |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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