EP3698044A1 - Pompe a barillet rotatif avec moyens de guidage et de centrage du barillet distincts - Google Patents
Pompe a barillet rotatif avec moyens de guidage et de centrage du barillet distinctsInfo
- Publication number
- EP3698044A1 EP3698044A1 EP18779727.9A EP18779727A EP3698044A1 EP 3698044 A1 EP3698044 A1 EP 3698044A1 EP 18779727 A EP18779727 A EP 18779727A EP 3698044 A1 EP3698044 A1 EP 3698044A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- cylinder block
- pump
- barrel
- pump according
- drive shaft
- 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
Links
- 230000006835 compression Effects 0.000 claims description 18
- 238000007906 compression Methods 0.000 claims description 18
- 238000005553 drilling Methods 0.000 claims description 10
- 238000007789 sealing Methods 0.000 claims description 6
- 238000013519 translation Methods 0.000 claims description 6
- 238000002347 injection Methods 0.000 claims description 5
- 239000007924 injection Substances 0.000 claims description 5
- 230000033001 locomotion Effects 0.000 description 10
- 238000006073 displacement reaction Methods 0.000 description 8
- 239000012530 fluid Substances 0.000 description 7
- 238000012423 maintenance Methods 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000005086 pumping Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 239000003921 oil Substances 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 2
- 239000004215 Carbon black (E152) Substances 0.000 description 1
- 238000004378 air conditioning Methods 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000010494 dissociation reaction Methods 0.000 description 1
- 230000005593 dissociations Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000010720 hydraulic oil Substances 0.000 description 1
- 229930195733 hydrocarbon Natural products 0.000 description 1
- 150000002430 hydrocarbons Chemical class 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000010355 oscillation Effects 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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
- F04B1/2014—Details or component parts
- F04B1/2035—Cylinder barrels
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21B—EARTH OR ROCK DRILLING; OBTAINING OIL, GAS, WATER, SOLUBLE OR MELTABLE MATERIALS OR A SLURRY OF MINERALS FROM WELLS
- E21B43/00—Methods or apparatus for obtaining oil, gas, water, soluble or meltable materials or a slurry of minerals from wells
- E21B43/12—Methods or apparatus for controlling the flow of the obtained fluid to or in wells
-
- 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
- F04B1/128—Driving means
-
- 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
- F04B1/2014—Details or component parts
- F04B1/2064—Housings
-
- 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
- F04B1/2014—Details or component parts
- F04B1/2064—Housings
- F04B1/2071—Bearings for cylinder barrels
-
- 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
- F04B1/2014—Details or component parts
- F04B1/2078—Swash plates
-
- 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
- F04B49/00—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00
- F04B49/12—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members
- F04B49/123—Control, e.g. of pump delivery, or pump pressure of, or safety measures for, machines, pumps, or pumping installations, not otherwise provided for, or of interest apart from, groups F04B1/00 - F04B47/00 by varying the length of stroke of the working members by changing the eccentricity of one element relative to another element
-
- 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
- F04B53/14—Pistons, piston-rods or piston-rod connections
-
- 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
- F04B53/16—Casings; Cylinders; Cylinder liners or heads; Fluid connections
Definitions
- the present invention relates to the field of pumps, in particular for high-pressure pumping, in particular for drilling operations.
- crankshaft pumps are the most widespread in all sectors of the industry: capital goods, oil, gas and agri-food industries, the automotive sector, building (heating, well, air conditioning, water pumps, etc.) and more specifically for the treatment of water and waste (water and sanitation network). Nevertheless, they are still built from concepts dating from the 1930s, and are the subject of very few research and development studies to improve their performance, reduce their cost, minimize maintenance costs or reduce their environmental footprint.
- These pumps have limits in terms of power, torque pressure / flow (that is to say, the limits that result in phenomena related to "water hammer” generated by the sinusoidal response of the pressure produced by the crankshaft ), weight, yield and shelf life. In addition, they do not allow to have a variable displacement and therefore lack flexibility of use.
- Barrel pumps with oscillating plate the barrel is fixed in this architecture and one has two plates, a first inclined plate is in rotation and transfers to the second plate only the oscillation movement.
- This architecture is suitable for high-pressure pumping due to the absence of rubbing elements (some of them are also found on the geothermal market). It also offers excellent mechanical performance. This configuration makes it possible to achieve a variable displacement, but it remains difficult to integrate and design.
- the rotary barrel pumps ( Figure 2): within the pump 1, it is the plate 2 which is fixed and the barrel 6 carrying the pistons 3 is rotated, thus ensuring the movement of the pistons 3 in their shirts 4 (compression chamber).
- the piston 3 - plate 2 connection is provided in the same way as for the first configuration.
- the advantage of this architecture is that it can easily make the adjustable tray tilt and thus have the possibility of variable displacement.
- the inertia of the rotating parts increases significantly since the barrel and the set of pistons are rotated.
- the maintenance of the pump is made difficult: it is necessary to disassemble the entire cylinder, including the "mechanical" guide portion of the pistons to access the inlet and discharge pipes.
- the barrel is made in two pieces, making assembly difficult, as good collinearity of the guide pins and the chamber is necessary.
- the present invention relates to a rotary barrel pump, for which the pivot connection between the barrel and the casing is performed by the separate guiding and centering means. This design makes it possible to differentiate the guiding and sealing functions, which facilitates the maintenance and the maintenance of the pump.
- the invention relates to a barrel pump comprising a housing, and comprising within said housing:
- a cylinder block comprising at least two circumferentially distributed compression chambers, said cylinder block being driven by said drive shaft,
- Said cylinder block is pivotally connected to the housing by guide means and separate centering means.
- said cylinder block is a single piece, which comprises a first portion for guiding said pistons, and a second part comprising said compression chambers.
- the interior spaces of said first and second parts of said cylinder block do not communicate together.
- said first and second portions of said cylinder block are connected by a third portion, the diameter of which is smaller than the diameters of said first and second portions of said cylinder block.
- said guide means comprise two angular contact roller bearings X mounted on said first portion of said cylinder block.
- said centering means comprise a ball bearing mounted on said second portion of said cylinder block.
- said cylinder block is driven by said drive shaft by means of splines provided on said drive shaft.
- said grooves are arranged at the end of said drive shaft.
- said pistons are in sliding pivot connection in said cylinder block.
- said cylinder block comprises sealing means with the inlet and discharge lines of said pump.
- said barrel pump comprises means for controlling the inclination of said plate.
- said inclination control means comprises a wheel and worm system.
- the invention relates to a use of said barrel pump according to one of the preceding features for a drilling operation, in particular for the injection of drilling muds into a wellbore.
- Figure 1 already described, illustrates a fixed barrel pump according to the prior art.
- Figure 2 already described, illustrates a rotary barrel pump according to the prior art.
- Figure 3 illustrates a barrel pump according to one embodiment of the invention.
- Figure 4 illustrates the relative assembly of the two barrels according to one embodiment of the invention.
- the present invention relates to a rotary barrel pump.
- the purpose of the barrel pump is to pump a fluid (eg water, oil, gas, drilling muds, etc.) by means of a linear displacement of several pistons.
- a fluid eg water, oil, gas, drilling muds, etc.
- This type of pump has the advantage of being compact, having interesting mechanical and volumetric efficiencies, an excellent weight / power ratio.
- rotary barrel pumps are suitable for high pressure pumping.
- the cylinder pump according to the invention comprises a housing and comprises within the housing: - a drive shaft: it is driven in rotation relative to the housing by an external source of energy, in particular a prime mover (for example thermal or electrical), in particular by means of a transmission (for example a gearbox),
- a prime mover for example thermal or electrical
- a transmission for example a gearbox
- this inclination can be adjustable, a cylinder block (called a barrel), comprising at least two compression chambers (also called jackets) distributed circumferentially (in other words the compression chambers are distributed in a circle), the cylinder block is rotatable relative to the casing, and driven by the drive shaft, and
- the pistons are driven by the cylinder block, and rods connect, by means of ball joints, the movable plate and the pistons so as to transform the movement of the cylinder block into motion of translation of the pistons, and the translation of the pistons within the compression chambers realize the pumping of the fluid.
- the adjustment of the inclination plate allows a variable displacement of the pump, by modifying the stroke of the pistons.
- the pivot connection between the cylinder block and the casing is formed by guide means and separate centering means.
- the cylinder block can be a one-piece piece (that is to say, made in one piece).
- the advantage of "merging" the two pieces of the cylinder block is to ensure good collinearity of the guide pins and the chamber, since this makes it possible to machining all the guiding and sealing means at once.
- this design has a reduced mass because the assembly functions between any two parts of the cylinder block are removed (so more screws, washers, nuts, ).
- the one-piece design simplifies the assembly of the pump barrel and the maintenance of the pump in service. Indeed, for maintenance, thanks to the separation of the guide means and the centering means, it is possible to disassemble only the centering means, or only the guide means.
- the cylinder block may comprise a first portion for guiding the pistons and a second portion intended for sealing, the second part comprising the compression chambers of the cylinder block.
- the second part is intended for the admission and discharge of the pumped fluid.
- the first and second parts may have a substantially cylindrical shape.
- the first and second parts can be connected by a third part.
- this third part may be substantially cylindrical and may have a diameter smaller than the diameters of the first and second parts.
- the guiding and centering means may comprise two angular contact roller bearings mounted in X (the bearing thrust centers are located between the two bearings). This configuration allows guidance and is suitable for high speeds of rotation with large loads.
- the two angular contact roller bearings can be mounted on the first part of the cylinder block.
- a ball bearing may be provided to limit the cantilever of the part and to ensure its centering over the entire length.
- the choice of a ball bearing has the advantage of being adapted to high speeds of rotation. The loads on this bearing being limited, this choice makes it possible to be compact and light.
- the ball bearing can be mounted on the second part of the cylinder block.
- the cylinder block can be driven by the drive shaft by means of splines provided on the drive shaft.
- the drive shaft may comprise male splines
- the barrel may include female splines cooperating with the male splines of the drive shaft.
- the splines make it possible to transmit a large torque.
- the female splines may be arranged in the second part of the cylinder block, and possibly in the third part of the cylinder block. Alternatively, the female splines can be arranged on the first part of the cylinder block.
- the cylinder block can be driven by means of a key provided in the drive shaft.
- the pistons may be pivotally connected sliding in the cylinder, in particular in the first part of the cylinder block, in particular by means of a ring.
- the tray may be substantially disk-shaped. However, the tray can have any shape. Only the compression chambers (and the pistons) are distributed on a circle.
- the pump according to the invention may comprise a number of pistons of between three and fifteen, preferably between five and eleven.
- a large number of pistons provides a continuous flow upstream and downstream of the pump.
- the pump further comprises an inlet (inlet) and an outlet (discharge) of the fluid to be pumped.
- the fluid passes through the inlet of the pump, enters a compression chamber, is compressed, and is discharged from the pump through the outlet by means of the piston.
- the barrel in particular the second portion of the cylinder block, may comprise sealing means with the inlet and discharge pipes of the pump.
- the inclination angle of the variable inclination plate relative to the axial direction of the drive shaft may be between 70 ° and 90 °.
- the variable inclination plate (and a fortiori the turntable) can be inclined at an angle between 0 and 20 ° with respect to a radial direction of the drive shaft.
- the barrel pump may comprise a means for controlling the inclination of the variable inclination plate.
- this control means may comprise a wheel and worm system.
- the pump may comprise a second plate (rotating plate).
- the second plate can be pivotally connected to the variable inclination plate and can be driven by the drive shaft.
- the drive of the second plate can be achieved by means of a finger ball joint.
- the rotary barrel pump 1 comprises a drive shaft 5.
- the rotation of the drive shaft 5 is performed by an external source not shown, for example an electric machine and a gearbox.
- the drive shaft 5 is rotated relative to the casing 15.
- the drive shaft 5 rotates the cylinder block 6 which has compression chambers 4.
- the pump 1 further comprises a platen.
- variable inclination 2 which, apart from its adjustment of the inclination, is fixed relative to the housing 15. The means for adjusting the inclination of the variable inclination plate 2 is not shown.
- the pump 1 comprises a piston 3 driven by a translation movement (reciprocating movement) within a compression chamber 4.
- the movement back and forth of the piston 3 is achieved by means of a rod 8 which connects the movable plate 2 and the piston 3 by means of ball joints. This movement back and forth of the piston 3 in the compression chamber 4 allows to pump the fluid.
- FIG. 4 illustrates, schematically and in a nonlimiting manner, a sectional view of the barrel according to one embodiment of the invention. This is a sectional view along a plane comprising the axis of the drive shaft 5.
- the cylinder block 6 comprises a first portion 16 for guiding the pistons 3, and a second portion 18 comprising the chambers
- the cylinder block 6 comprises a third portion 17 connecting the first portion 16 to the second portion 18.
- the first and second portions 16 and 18 have a substantially cylindrical shape.
- the third portion 17 is also cylindrical and has a diameter smaller than the diameters of the first and second parts 16 and 18.
- a cover 9 is provided at the end of the drive shaft 5 so as to dissociate the internal spaces of the first and second parts 16 and 18.
- the cylinder block 6 is rotatably mounted in the casing 15 by means of centering means and guiding means.
- the centering means comprise a ball bearing 13 mounted between the second portion 18 of the barrel 6 and the casing 15.
- the guide means comprise two angular contact roller bearings 1 1 and 12 mounted between the first part 16 of the barrel 6 and the casing 15.
- the angular contact roller bearings 1 1 and 12 are mounted in X.
- the first part 16 of the barrel 6 comprises a ring 14 allowing a sliding pivot connection between the piston 3 and the barrel 6.
- the drive shaft 5 has at its end splines 19, which cooperate with female splines (not shown) provided in the second and third parts 18 and 17 of the cylinder block 6.
- the invention also relates to the use of the pump according to the invention for a drilling operation, in particular for the injection of drilling muds into a wellbore.
- the pump according to the invention is well suited to this use, for its flexibility, compactness, and resistance to high pressures.
- the pump according to the invention can be sized to operate up to pressures of the order of 1500 bars, that is to say 150 MPa.
- the pump according to the invention can be sized to operate at flow rates ranging from 30 to 600 m 3 / h.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- Geology (AREA)
- Fluid Mechanics (AREA)
- Environmental & Geological Engineering (AREA)
- Physics & Mathematics (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Reciprocating Pumps (AREA)
- Details Of Reciprocating Pumps (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR1759897A FR3072736B1 (fr) | 2017-10-20 | 2017-10-20 | Pompe a barillet rotatif avec moyens de guidage et de centrage du barillet distincts |
PCT/EP2018/077337 WO2019076670A1 (fr) | 2017-10-20 | 2018-10-08 | Pompe a barillet rotatif avec moyens de guidage et de centrage du barillet distincts |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3698044A1 true EP3698044A1 (fr) | 2020-08-26 |
EP3698044B1 EP3698044B1 (fr) | 2022-12-07 |
Family
ID=60515672
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18779727.9A Active EP3698044B1 (fr) | 2017-10-20 | 2018-10-08 | Pompe a barillet rotatif avec moyens de guidage et de centrage du barillet distincts |
Country Status (6)
Country | Link |
---|---|
US (1) | US11486372B2 (fr) |
EP (1) | EP3698044B1 (fr) |
CN (1) | CN111279075A (fr) |
CA (1) | CA3078162A1 (fr) |
FR (1) | FR3072736B1 (fr) |
WO (1) | WO2019076670A1 (fr) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN111963645B (zh) * | 2020-06-28 | 2022-01-25 | 重庆交通大学绿色航空技术研究院 | 轴协同斜盘转缸式轴向活塞驱动装置 |
Family Cites Families (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US1945391A (en) * | 1931-07-17 | 1934-01-30 | Hydraulic Press Mfg Co | Pump |
GB532635A (en) * | 1938-09-22 | 1941-01-28 | Ansaldo Sa | A multi-cylinder rotary pump |
GB580544A (en) * | 1943-12-14 | 1946-09-11 | William Donagan Hills | Improvements relating to liquid pumps |
US2465510A (en) * | 1944-10-23 | 1949-03-29 | Lapointe Machine Tool Co | Hydraulic pump |
GB588451A (en) * | 1945-01-02 | 1947-05-22 | Lapointe Machine Tool Co | Improvements in or relating to revolving cylinder reciprocating pumps |
US2972955A (en) * | 1957-03-21 | 1961-02-28 | Richter Harald | Submersible pump |
DE1287933B (de) * | 1965-12-01 | 1969-01-23 | Linde Ag, 6200 Wiesbaden | Einrichtung zum Andrücken der Zylindertrommel einer Axialkolbenmaschine an deren Steuerspiegel |
FR1488511A (fr) * | 1966-07-25 | 1967-07-13 | Boulton Aircraft Ltd | Perfectionnements aux pompes et moteurs hydrauliques |
USRE32373E (en) * | 1970-08-03 | 1987-03-17 | Dana Corporation | Fluid device having means for aligning a cylinder barrel |
USRE32403E (en) * | 1970-08-03 | 1987-04-21 | Dana Corporation | Fluid device having interchangeable displacement control means |
FR2307984A1 (fr) * | 1975-04-16 | 1976-11-12 | Affouard Robert | Engin rotatif hydraulique a barillet pouvant servir de pompe ou de moteur |
US4281971A (en) * | 1979-07-31 | 1981-08-04 | Abex Corporation | Inlet inducer-impeller for piston pump |
JPS59105976A (ja) * | 1982-12-10 | 1984-06-19 | Hitachi Constr Mach Co Ltd | 斜板式液圧回転機 |
DE3413867C2 (de) * | 1983-04-13 | 1995-04-06 | Linde Ag | Axialkolbenpumpe für zwei Förderströme |
DE3423467C2 (de) * | 1984-06-26 | 1986-04-24 | Ingo 7900 Ulm Valentin | Hydraulische Schiefscheiben-Axialkolbenmaschine |
CN85105021A (zh) * | 1985-07-02 | 1986-12-31 | 瓦伦丁 | 液压斜盘式轴向柱塞机 |
US5538401A (en) * | 1994-07-05 | 1996-07-23 | Denison Hydraulics Inc. | Axial piston pump |
CN2328811Y (zh) * | 1997-09-23 | 1999-07-14 | 阎学富 | 电磁控制变量轴向柱塞泵 |
US6334512B1 (en) * | 1998-08-07 | 2002-01-01 | Linde Aktiengesellschaft | Shaftless axial piston motor |
DE10055261A1 (de) * | 2000-11-08 | 2002-05-23 | Linde Ag | Hydrostatische Axialkolbenmaschine in Schrägscheibenbauweise |
ITBO20020021A1 (it) * | 2002-01-16 | 2003-07-16 | Ecotec Srl | Macchina volumetrica rotativa a pistoni radiali |
CN201433864Y (zh) * | 2009-04-24 | 2010-03-31 | 上海电气液压气动有限公司 | 一种斜轴式液压柱塞泵或马达 |
CN204729245U (zh) * | 2014-12-10 | 2015-10-28 | 湘潭楚元精密机械有限公司 | 一种双活塞手动变量油泵 |
CN104500358A (zh) * | 2014-12-26 | 2015-04-08 | 启东高压油泵有限公司 | 一种低噪音高速轴向柱塞泵 |
CN106286183B (zh) * | 2016-10-10 | 2018-07-13 | 燕山大学 | 可实现流体能量回收的斜盘式轴向活-柱塞泵 |
-
2017
- 2017-10-20 FR FR1759897A patent/FR3072736B1/fr active Active
-
2018
- 2018-10-08 US US16/757,166 patent/US11486372B2/en active Active
- 2018-10-08 CN CN201880066888.5A patent/CN111279075A/zh active Pending
- 2018-10-08 EP EP18779727.9A patent/EP3698044B1/fr active Active
- 2018-10-08 WO PCT/EP2018/077337 patent/WO2019076670A1/fr unknown
- 2018-10-08 CA CA3078162A patent/CA3078162A1/fr not_active Abandoned
Also Published As
Publication number | Publication date |
---|---|
CN111279075A (zh) | 2020-06-12 |
US20210123420A1 (en) | 2021-04-29 |
WO2019076670A1 (fr) | 2019-04-25 |
FR3072736A1 (fr) | 2019-04-26 |
FR3072736B1 (fr) | 2022-05-06 |
US11486372B2 (en) | 2022-11-01 |
EP3698044B1 (fr) | 2022-12-07 |
CA3078162A1 (fr) | 2019-04-25 |
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