WO2014129926A1 - Axial piston pump with energy recovery - Google Patents
Axial piston pump with energy recovery Download PDFInfo
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- WO2014129926A1 WO2014129926A1 PCT/RU2013/000632 RU2013000632W WO2014129926A1 WO 2014129926 A1 WO2014129926 A1 WO 2014129926A1 RU 2013000632 W RU2013000632 W RU 2013000632W WO 2014129926 A1 WO2014129926 A1 WO 2014129926A1
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- Prior art keywords
- rotor
- channels
- cylinder block
- stator
- flat surface
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Classifications
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- 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
- F04B1/2021—Details or component parts characterised by the contact area between cylinder barrel and valve plate
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- 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
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D61/00—Processes of separation using semi-permeable membranes, e.g. dialysis, osmosis or ultrafiltration; Apparatus, accessories or auxiliary operations specially adapted therefor
- B01D61/02—Reverse osmosis; Hyperfiltration ; Nanofiltration
- B01D61/06—Energy recovery
Definitions
- the present invention relates to multi-cylinder reciprocating pumps with a rotating cylinder block, in particular, used in reverse osmosis devices and involving the recovery of energy.
- an axial-plunger pump with energy recovery by a pressure exchanger comprising a rotor with a cylinder block made with channels for the pumped liquid connected to the plunger cavity of the cylinders and channels of the pressure exchanger for the liquid used for energy recovery connected to the rod cylinder cavity , which is part of the pressure exchanger, and a stator made with through channels, in contact with a flat surface with the end face of the rotor, while the openings of the stator channels periodically coincide with rotating the rotor with the holes of the rotor channels.
- This well-known technical solution is selected as a prototype of the claimed invention.
- a disadvantage of the known axial-plunger pump is the occurrence due to an asymmetric (unbalanced) load on the rotor of oscillatory movements of the rotor in both axial and radial directions (relative to the axis of rotation), which, as a result, leads to uneven wear of the joint surfaces of the rotor and stator, and also a cylinder block. As a result of such wear, the tightness of the structure is significantly reduced, and hence the pump efficiency (efficiency).
- the service life and tightness (volumetric efficiency) of axial-plunger hydraulic pumps depend on the presence, size and uniformity of the gaps between the mating parts, namely, in the junction between the stator and the rotating rotor and in the mating of the cylindrical surface of the plungers with the holes of the rotating rotor .
- the asymmetric (unbalanced) rotor load characteristic of axial-plunger hydraulic pumps contributes to oscillatory movements of the rotating rotor (both axially and radially) relative to the axis of rotation and, as a consequence, to uneven wear of the butt surfaces of the rotating rotor and the stationary the distributor, as well as the cylindrical surfaces of the plungers and the associated holes of the rotating rotor. As a result of such wear, the tightness (volumetric efficiency) of the pump is significantly reduced.
- the technical result achieved is to reduce the wear of rubbing parts, reduce energy consumption during operation and increase volumetric efficiency pump.
- a pressure exchanger including a rotor with a cylinder block, made with channels for the pumped liquid connected to the plunger cavity of the cylinders, and channels (pressure exchanger) for the liquid used for energy recovery, connected to rod cylinder cavity (which is part of the pressure exchanger), and a stator made with through channels, in contact with a flat surface with the end face of the rotor, with the holes
- the stator anal- yles coincide periodically with the holes of the rotor channels (for the pumped liquid and the liquid used for energy recovery).
- the rotor includes a plate made with through channels for the pumped liquid and channels for the liquid used for energy recovery.
- the flat surface of the plate is in contact with the flat surface of the stator, and the opposite relief surface is in contact with the relief surface of the end face of the cylinder block.
- the plate is mounted on the cylinder block at the end of the rotor with the possibility of displacement along the axis of the rotor and tilt relative to the axis of the rotor and is pressed by a flat surface to the flat surface of the stator by a spring mounted on the cylinder block.
- the holes of the through channels of the plate are a continuation of the corresponding channels of the rotor.
- the cylinder block can be installed in the housing in an angular contact bearing. This allows you to reduce the magnitude of the displacement of the rotor and to reduce the wear of the cylindrical surfaces of the plungers and associated channels in the cylinder block.
- the pump can be made with a housing filled with liquid, while the cylinder block can be made with ledges on the outer surface, which provide fluid circulation inside the housing during rotation of the rotor, thereby lubricating and cooling the bearing assembly.
- FIG. 1 shows an axial plunger pump.
- axial-plunger pump includes a housing 1, a bearing assembly 2, a rotor 3, driven by a shaft 4, a cylinder block 5, a plate b, a stator 7, a spring 8, a plunger 9, a ledge 10, a spherical joint 11, a thrust bearing 12, an inclined a washer 13, a plunger cavity 14, a rod cavity 15.
- a support thrust bearing 12 is mounted, abutting against the sliding surface of the inclined washer 13.
- the pumped liquid is supplied to the working chambers 14 through the channel (d) of the stator 7 and the channel of the plate 6 with a certain pressure, while the rod cavity 15 is connected through its own outlet channel (c) of the stator 7 to a discharge line (not shown).
- the discharge of the pumped liquid of high pressure from the working chambers (plunger cavity) 14 of the plungers 9 is carried out through the channels of the plate 6 and the channel (a) of the stator 7 into the consumption system (not shown).
- the rod cavity 15 is connected through its own underwater channel (b) of the stator 7 with a liquid having high pressure, which is a by-product of the process.
- the rotation of the rotor 3 is communicated through the shaft 4.
- the sliding bearing unit 2 receives an unbalanced load on the cylinder block 5 from the action of the plungers 9 in the radial and axial direction without loss of tightness in the interface between the relief surfaces of the cylinder block 5 and the plate 6 and without violating the uniform clearance between the flat surfaces plate 6 and stator 7.
- the cylinder block 5 and the plate 6 are interconnected by selected embossed surfaces, which, with a relatively small offset from each other, due to the high accuracy of their manufacture, do not violate the tightness of the channels.
- the pump housing is filled with the pumped liquid through the inlet channel (e) connecting the cavity of the pump housing and the channel (d).
- the cylinder block is made with ledges 10 on the outer surface, providing circulation of fluid inside the housing during rotation of the rotor, thereby lubricating and cooling the bearing assembly.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Reciprocating Pumps (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
An axial piston pump with energy recovery comprising a rotor having a cylinder block provided with channels for pumped liquid which are connected to the piston cavity of the cylinders, and channels for a liquid which is used for energy recovery which are connected to the rod cavity of the cylinders, and provided with through-channels of a stator, the flat surface of which comes into contact with the end face of the rotor. The rotor comprises a plate which is provided with through-channels for a pumped liquid and channels for a liquid which is used for energy recovery. Said plate has a flat surface which comes into contact with a flat surface of the stator, and an opposite embossed surface which comes into contact with an embossed surface of the end face of the cylinder block and which is installed on the cylinder block at the end face of the rotor so as to be able to move along the rotor axis and at an angle relative to the rotor axis while the flat surface thereof is pressed against the flat surface of the stator by means of a spring.
Description
Аксиально-плунжерный насос Axial Plunger Pump
с рекуперацией энергии with energy recovery
Область техники Technical field
Настоящее изобретение относится к многоцилиндровым поршневым насосам с вращающимся блоком цилиндров, в частности, используемым в устройствах обратного осмоса и предусматривающим рекуперацию энергии. The present invention relates to multi-cylinder reciprocating pumps with a rotating cylinder block, in particular, used in reverse osmosis devices and involving the recovery of energy.
Предшествующий уровень техники State of the art
Из уровня техники известен, см. патент US 7,799,221, опубликованный The prior art is known, see patent US 7,799,221, published
21.09.2010, аксиально-плунжерный насос с рекуперацией энергии обменником давления, включающий ротор с блоком цилиндров, выполненным с каналами для перекачиваемой жидкости, соединенными с плунжерной полостью цилиндров, и каналами обменника давления для жидкости, используемой для рекуперации энергии, соединенньми со штоковой полостью цилиндров, являющуюся частью обменника давления, и выполненный со сквозными каналами статор, контактирующий плоской поверхностью с торцом ротора, при этом отверстия каналов статора периодически совпадают при вращении ротора с отверстиями каналов ротора. Это известное техническое решение выбрано в качестве прототипа заявленного изобретения. 09.21.2010, an axial-plunger pump with energy recovery by a pressure exchanger, comprising a rotor with a cylinder block made with channels for the pumped liquid connected to the plunger cavity of the cylinders and channels of the pressure exchanger for the liquid used for energy recovery connected to the rod cylinder cavity , which is part of the pressure exchanger, and a stator made with through channels, in contact with a flat surface with the end face of the rotor, while the openings of the stator channels periodically coincide with rotating the rotor with the holes of the rotor channels. This well-known technical solution is selected as a prototype of the claimed invention.
Недостатком известного аксиально-плунжерного насоса является возникновение вследствие несимметричной (неуравновешенной) нагрузки на ротор колебательных движений ротора как в осевом, так и в радиальном направлениях (относительно оси вращения), что, как следствие, приводит к неравномерности износа стыковых поверхностей ротора и статора, а также блока цилиндров. В результате такого износа значительно снижается герметичность конструкции, а значит, и коэффициент полезного действия насоса (к.п.д.). A disadvantage of the known axial-plunger pump is the occurrence due to an asymmetric (unbalanced) load on the rotor of oscillatory movements of the rotor in both axial and radial directions (relative to the axis of rotation), which, as a result, leads to uneven wear of the joint surfaces of the rotor and stator, and also a cylinder block. As a result of such wear, the tightness of the structure is significantly reduced, and hence the pump efficiency (efficiency).
Срок службы и герметичность (объемный к.п.д.) аксиально-плунжерных гидравлических насосов зависят от наличия, величины и равномерности зазоров между сопрягаемыми деталями, а именно, в стыке между статором и вращающимся ротором и в сопряжении цилиндрической поверхности плунжеров с отверстиями вращающегося ротора.
Несимметричная (неуравновешенная) нагрузка на ротор, характерная для аксиально-плунжерных гидравлических насосов, способствует возникновению колебательных движений вращающегося ротора (как в осевом, так и в радиальном направлениях) относительно оси вращения и, как следствие, к неравномерности износа стыковых поверхностей вращающегося ротора и неподвижного распределителя, а также цилиндрических поверхностей плунжеров и сопряженных с ними отверстий вращающегося ротора. В результате такого износа значительно снижается герметичность (объемный к.п.д.) насоса. The service life and tightness (volumetric efficiency) of axial-plunger hydraulic pumps depend on the presence, size and uniformity of the gaps between the mating parts, namely, in the junction between the stator and the rotating rotor and in the mating of the cylindrical surface of the plungers with the holes of the rotating rotor . The asymmetric (unbalanced) rotor load characteristic of axial-plunger hydraulic pumps contributes to oscillatory movements of the rotating rotor (both axially and radially) relative to the axis of rotation and, as a consequence, to uneven wear of the butt surfaces of the rotating rotor and the stationary the distributor, as well as the cylindrical surfaces of the plungers and the associated holes of the rotating rotor. As a result of such wear, the tightness (volumetric efficiency) of the pump is significantly reduced.
Раскрытие изобретения Disclosure of invention
В заявленном изобретении достигаемый технический результат заключается в снижении износа трущихся деталей, уменьшении энергозатрат при эксплуатации и повышении объемного к.п.д. насоса. In the claimed invention, the technical result achieved is to reduce the wear of rubbing parts, reduce energy consumption during operation and increase volumetric efficiency pump.
Указанный технический результат достигается в аксиально-плунжерном насосе с рекуперацией энергии обменником давления, включающем ротор с блоком цилиндров, выполненным с каналами для перекачиваемой жидкости, соединенными с плунжерной полостью цилиндров, и каналами (обменника давления) для жидкости, используемой для рекуперации энергии, соединенными со штоковой полостью цилиндров (являющуюся частью обменника давления), и выполненный со сквозными каналами статор, контактирующий плоской поверхностью с торцом ротора, при этом отверстия каналов статора периодически совпадают при вращении ротора с отверстиями каналов ротора (для перекачиваемой жидкости и жидкости, используемой для рекуперации энергии). При этом ротор включает пластину, выполненную со сквозными каналами для перекачиваемой жидкости и каналами для жидкости, используемой для рекуперации энергии. Плоской поверхностью пластина контактирует с плоской поверхностью статора, а противоположной рельефной поверхностью контактирует с рельефной поверхностью торца блока цилиндров. Пластина установлена на блоке цилиндров в торце ротора с возможностью смещения вдоль оси ротора и наклона относительно оси ротора и поджимается плоской поверхностью к плоской поверхности статора пружиной, установленной на блоке цилиндров. Отверстия сквозных каналов пластины являются продолжением соответствующих каналов ротора.
Указанный технический результат достигается в заявленном изобретении благодаря сохранению равномерного зазора между статором и ротором, независимо от его колебательных движений. Важно также и то, что при смещениях пластины относительно блока цилиндров вдоль оси ротора и ее наклонах относительно оси ротора герметичность каналов ротора не нарушается. The specified technical result is achieved in an axial-plunger pump with energy recovery by a pressure exchanger, including a rotor with a cylinder block, made with channels for the pumped liquid connected to the plunger cavity of the cylinders, and channels (pressure exchanger) for the liquid used for energy recovery, connected to rod cylinder cavity (which is part of the pressure exchanger), and a stator made with through channels, in contact with a flat surface with the end face of the rotor, with the holes When the rotor rotates, the stator anal- yles coincide periodically with the holes of the rotor channels (for the pumped liquid and the liquid used for energy recovery). In this case, the rotor includes a plate made with through channels for the pumped liquid and channels for the liquid used for energy recovery. The flat surface of the plate is in contact with the flat surface of the stator, and the opposite relief surface is in contact with the relief surface of the end face of the cylinder block. The plate is mounted on the cylinder block at the end of the rotor with the possibility of displacement along the axis of the rotor and tilt relative to the axis of the rotor and is pressed by a flat surface to the flat surface of the stator by a spring mounted on the cylinder block. The holes of the through channels of the plate are a continuation of the corresponding channels of the rotor. The specified technical result is achieved in the claimed invention by maintaining a uniform gap between the stator and the rotor, regardless of its oscillatory movements. It is also important that when the plate is displaced relative to the cylinder block along the rotor axis and its inclinations relative to the rotor axis, the tightness of the rotor channels is not violated.
Кроме того, блок цилиндров может быть установлен в корпусе в радиально-упорном подшипнике. Это позволяет уменьшить величину смещений ротора и снизить износ цилиндрических поверхностей плунжеров и сопряженных с ними каналов в блоке цилиндров. In addition, the cylinder block can be installed in the housing in an angular contact bearing. This allows you to reduce the magnitude of the displacement of the rotor and to reduce the wear of the cylindrical surfaces of the plungers and associated channels in the cylinder block.
Насос может быть выполнен с корпусом, заполняемым жидкостью, а блок цилиндров при этом может быть выполнен с уступами на внешней поверхности, обеспечивающими циркуляцию жидкости внутри корпуса при вращении ротора, осуществляя тем самым смазку и охлаждение подшипникового узла. The pump can be made with a housing filled with liquid, while the cylinder block can be made with ledges on the outer surface, which provide fluid circulation inside the housing during rotation of the rotor, thereby lubricating and cooling the bearing assembly.
Краткое описание чертежей Brief Description of the Drawings
На фиг. 1 показан аксиально-плунжерный насос. Лучший вариант осуществления изобретения In FIG. 1 shows an axial plunger pump. The best embodiment of the invention
Представленный на фиг. 1 аксиально-плунжерный насос включает корпус 1, подшипниковый узел 2, ротор 3, приводимый во вращение валом 4, блок цилиндров 5, пластину б, статор 7, пружину 8, плунжер 9, уступ 10, сферическое сочленение 11, опорный подпятник 12, наклонную шайбу 13, плунжерную полость 14, штоковую полость 15. На штоке каждого плунжера через сферическое сочленение 11 укреплен опорный подпятник 12, упирающийся в поверхность скольжения наклонной шайбы 13. Presented in FIG. 1 axial-plunger pump includes a housing 1, a bearing assembly 2, a rotor 3, driven by a shaft 4, a cylinder block 5, a plate b, a stator 7, a spring 8, a plunger 9, a ledge 10, a spherical joint 11, a thrust bearing 12, an inclined a washer 13, a plunger cavity 14, a rod cavity 15. On the rod of each plunger through a spherical joint 11, a support thrust bearing 12 is mounted, abutting against the sliding surface of the inclined washer 13.
Перекачиваемая жидкость подводится в рабочие камеры 14 через канал (d) статора 7 и канал пластины 6 с определенным давлением, при этом штоковая полость 15 соединена через собственный отводной канал (с) статора 7 со сбросной магистралью (не показано). The pumped liquid is supplied to the working chambers 14 through the channel (d) of the stator 7 and the channel of the plate 6 with a certain pressure, while the rod cavity 15 is connected through its own outlet channel (c) of the stator 7 to a discharge line (not shown).
Отвод перекачиваемой жидкости повышенного давления из рабочих камер (плунжерной полости) 14 плунжеров 9 осуществляется через каналы пластины 6 и канал (а) статора 7 в систему потребления (не показано).
При этом штоковая полость 15 соединена через собственный подводной канал (Ь) статора 7 с жидкостью, обладающей повышенным давлением, которое является побочным продуктом процесса. Таким образом, плунжеру 9 сообщается дополнительная энергия, тем самым уменьшаются затраты энергии на создание повышенного давления в рабочей камере 14. The discharge of the pumped liquid of high pressure from the working chambers (plunger cavity) 14 of the plungers 9 is carried out through the channels of the plate 6 and the channel (a) of the stator 7 into the consumption system (not shown). In this case, the rod cavity 15 is connected through its own underwater channel (b) of the stator 7 with a liquid having high pressure, which is a by-product of the process. Thus, additional energy is communicated to the plunger 9, thereby reducing energy costs for creating increased pressure in the working chamber 14.
Вращение ротору 3 сообщается через вал 4. Подшипниковый узел скольжения 2 воспринимает неуравновешенную нагрузку на блок цилиндров 5 от воздействия плунжеров 9 в радиальном и осевом направлении без потери герметичности в сопряжении между рельефными поверхностями блока цилиндров 5 и пластины 6 и без нарушения равномерного зазора между плоскими поверхностями пластины 6 и статора 7. The rotation of the rotor 3 is communicated through the shaft 4. The sliding bearing unit 2 receives an unbalanced load on the cylinder block 5 from the action of the plungers 9 in the radial and axial direction without loss of tightness in the interface between the relief surfaces of the cylinder block 5 and the plate 6 and without violating the uniform clearance between the flat surfaces plate 6 and stator 7.
Блок цилиндров 5 и пластина 6 сопрягаются между собой подобранными рельефными поверхностями, которые при относительно небольшом смещении друг относительно друга, за счет высокой точности их изготовления, не нарушают герметичность каналов. The cylinder block 5 and the plate 6 are interconnected by selected embossed surfaces, which, with a relatively small offset from each other, due to the high accuracy of their manufacture, do not violate the tightness of the channels.
Неизменность равномерного зазора между плоскими поверхностями пластины 6 и статора 7 обеспечивается тем, что пружина 8 прижимает пластину 6 к статору 7. The uniform gap between the flat surfaces of the plate 6 and the stator 7 is ensured by the fact that the spring 8 presses the plate 6 against the stator 7.
Корпус насоса заполняется перекачиваемой жидкостью через подводящий канал (е), соединяющий полость корпуса насоса и канал (d). The pump housing is filled with the pumped liquid through the inlet channel (e) connecting the cavity of the pump housing and the channel (d).
Блок цилиндров выполнен с уступами 10 на внешней поверхности, обеспечивающими циркуляцию жидкости внутри корпуса при вращении ротора, осуществляя тем самым смазку и охлаждение подшипникового узла.
The cylinder block is made with ledges 10 on the outer surface, providing circulation of fluid inside the housing during rotation of the rotor, thereby lubricating and cooling the bearing assembly.
Claims
1. Аксиально-плунжерный насос с рекуперацией энергии, включающий ротор с блоком цилиндров, вьшолненным с каналами для перекачиваемой жидкости, соединенными с плунжерной полостью цилиндров, и каналами для жидкости, используемой для рекуперации энергии, соединенными со штоковой полостью цилиндров, и выполненный со сквозными каналами статор, контактирующий плоской поверхностью с торцом ротора, при этом отверстия каналов статора периодически совпадают при вращении ротора с отверстиями каналов ротора, отличающийся тем, что ротор дополнительно включает выполненную со сквозными каналами для перекачиваемой жидкости и каналами для жидкости, используемой для рекуперации энергии, пластину с плоской поверхностью, контактирующей с плоской поверхностью статора, и противоположной рельефной поверхностью, контактирующей с рельефной поверхностью торца блока цилиндров, установленную на блоке цилиндров в торце ротора с возможностью смещения вдоль оси ротора и наклона относительно оси ротора и поджимаемую плоской поверхностью к плоской поверхности статора пружиной. 1. Axial-plunger pump with energy recovery, comprising a rotor with a cylinder block, complete with channels for the pumped liquid connected to the plunger cavity of the cylinders, and channels for the liquid used for energy recovery, connected to the rod cavity of the cylinders, and made with through channels the stator in contact with a flat surface with the end face of the rotor, while the holes of the stator channels periodically coincide when the rotor rotates with the holes of the rotor channels, characterized in that the rotor is supplemented It also includes a plate with a through channel for the pumped liquid and a channel for the liquid used for energy recovery, a plate with a flat surface in contact with the flat surface of the stator and an opposite relief surface in contact with the relief surface of the end face of the cylinder block, mounted on the cylinder block at the end of the rotor with the possibility of displacement along the axis of the rotor and tilt relative to the axis of the rotor and pressed by a flat surface to the flat surface of the stator by a spring.
2. Насос по п. 1, отличающийся тем, что блок цилиндров установлен в корпусе в радиально-упорном подшипнике, воспринимающем неуравновешенную нагрузку на ротор. 2. The pump according to claim 1, characterized in that the cylinder block is installed in the housing in an angular contact bearing that receives an unbalanced load on the rotor.
3. Насос по п. 2, отличающийся тем, что выполнен с корпусом, заполняемым жидкостью, а блок цилиндров выполнен с уступами на внешней поверхности, обеспечивающими циркуляцию жидкости внутри корпуса при вращении ротора.
3. The pump according to p. 2, characterized in that it is made with a housing filled with liquid, and the cylinder block is made with ledges on the outer surface, providing fluid circulation inside the housing during rotation of the rotor.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2015531881A JP5920645B2 (en) | 2013-02-21 | 2013-07-23 | Energy recovery axial plunger pump |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| RU2013107556 | 2013-02-21 | ||
| RU2013107556 | 2013-02-21 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2014129926A1 true WO2014129926A1 (en) | 2014-08-28 |
Family
ID=51391599
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/RU2013/000632 WO2014129926A1 (en) | 2013-02-21 | 2013-07-23 | Axial piston pump with energy recovery |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP5920645B2 (en) |
| WO (1) | WO2014129926A1 (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105526051A (en) * | 2016-01-19 | 2016-04-27 | 沃尔科技有限公司 | High-pressure plunger pump with energy recycling function |
| CN107178544B (en) * | 2017-07-13 | 2019-06-21 | 徐工集团工程机械有限公司 | Pump motor end cap assembly, pump motor and crane energy recovery hydraulic system |
| CN111237155A (en) * | 2020-02-28 | 2020-06-05 | 燕山大学 | Through-shaft axial piston pump capable of realizing energy recovery |
| CN111348725B (en) * | 2020-03-03 | 2020-11-17 | 自然资源部天津海水淡化与综合利用研究所 | Portable seawater desalination machine capable of being operated by one hand and working method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3961563A (en) * | 1973-03-19 | 1976-06-08 | Hydromatik Gmbh | Axial piston machine of the type having a tiltable cylinder block |
| US20100000401A1 (en) * | 2004-07-09 | 2010-01-07 | Brueninghaus Hydromatik Gmbh | Axial-piston machine having an antiwear layer |
| US7799221B1 (en) * | 2008-01-15 | 2010-09-21 | Macharg John P | Combined axial piston liquid pump and energy recovery pressure exchanger |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2512186B2 (en) * | 1990-02-19 | 1996-07-03 | 株式会社日立製作所 | Axial piston pump device |
| WO1998017913A1 (en) * | 1996-10-24 | 1998-04-30 | Komatsu Ltd. | Hydraulic pump/motor apparatus |
| JP5063823B1 (en) * | 2012-04-13 | 2012-10-31 | 株式会社小松製作所 | Oblique shaft type axial piston pump / motor |
-
2013
- 2013-07-23 WO PCT/RU2013/000632 patent/WO2014129926A1/en active Application Filing
- 2013-07-23 JP JP2015531881A patent/JP5920645B2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3961563A (en) * | 1973-03-19 | 1976-06-08 | Hydromatik Gmbh | Axial piston machine of the type having a tiltable cylinder block |
| US20100000401A1 (en) * | 2004-07-09 | 2010-01-07 | Brueninghaus Hydromatik Gmbh | Axial-piston machine having an antiwear layer |
| US7799221B1 (en) * | 2008-01-15 | 2010-09-21 | Macharg John P | Combined axial piston liquid pump and energy recovery pressure exchanger |
Also Published As
| Publication number | Publication date |
|---|---|
| JP5920645B2 (en) | 2016-05-18 |
| JP2015529778A (en) | 2015-10-08 |
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