CN112177877A - Energy recovery type inclined shaft type seawater desalination high-pressure pump - Google Patents
Energy recovery type inclined shaft type seawater desalination high-pressure pump Download PDFInfo
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- CN112177877A CN112177877A CN202010990041.5A CN202010990041A CN112177877A CN 112177877 A CN112177877 A CN 112177877A CN 202010990041 A CN202010990041 A CN 202010990041A CN 112177877 A CN112177877 A CN 112177877A
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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
- F04B1/22—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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- 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
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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
-
- 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
- F04B1/2042—Valves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Separation Using Semi-Permeable Membranes (AREA)
Abstract
The invention relates to an energy recovery type inclined shaft type seawater desalination high-pressure pump, which belongs to the technical field of fluid transmission and control equipment, wherein a center of an output shaft end of a main shaft is hinged with a central supporting rod, and a plurality of connecting rods are hinged along the circumferential direction of the central supporting rod; a spring is arranged in the supporting center rod, the other end of the supporting center rod penetrates through the cylinder body and is hinged with the spherical valve plate, and the main shaft and the cylinder body are arranged at a certain included angle; the other end of the connecting rod is connected with a piston group arranged in the cylinder body and forms a rod cavity and a rodless cavity; the cylinder body is internally provided with a flow distribution channel which is alternatively connected and disconnected with a flow distribution window of the spherical flow distribution plate, all the components are arranged in the shell, the front end and the rear end of the shell are respectively fixed with the front end cover and the rear end cover through bolts, and the tail end of the shell is provided with a pore channel which is matched with the spherical flow distribution plate from top to bottom. The invention has small occupied area and convenient application, realizes the recovery of the residual pressure energy of the discharged concentrated seawater while pressurizing the original seawater, achieves the aim of saving energy, reduces the production cost and has obvious economic benefit.
Description
Technical Field
The invention relates to an energy recovery type inclined shaft type seawater desalination high-pressure pump, and belongs to the technical field of fluid transmission and control.
Background
China has abundant fresh water resources, but people are few, the demand of fresh water is very large due to a large population, the fresh water resources on land are difficult to meet the daily life requirements of people at present, and part of fresh water is from seawater desalination. The seawater desalination engineering produces a large amount of concentrated seawater with certain pressure energy, and if the pressure energy in the waste concentrated seawater cannot be fully utilized, the manufacturing cost of the fresh water is increased, the production efficiency is reduced, and the service life and the utilization rate of seawater desalination equipment are influenced. At present, Sal Tec DT series products of KSB company, PX series products of ERI company, DWEER series products of Flowerve company and PES products of SIEMAG company are mainly used as energy recovery devices, and the energy recovery devices have the defects of large occupied area and need of a booster pump to be integrated into a reverse osmosis seawater desalination system, so that the application of the energy recovery devices is limited to different degrees.
The invention discloses an energy recovery type inclined shaft type high-pressure pump for seawater desalination, which can realize energy recovery of residual pressure energy of discharged concentrated seawater while pressurizing original seawater, thereby achieving the purpose of saving energy, reducing production cost and bringing great economic benefit to factories.
Disclosure of Invention
The invention aims to provide an energy recovery type inclined shaft type seawater desalination high-pressure pump which can recover residual pressure energy of discharged concentrated seawater, and is small in occupied area and convenient to apply.
In order to achieve the purpose, the invention adopts the technical scheme that:
an energy recovery type inclined shaft type seawater desalination high-pressure pump comprises a main shaft, a front end cover, a bearing group, a shell, a pressure plate, a connecting rod, a piston group, a rear end cover, a spring, a supporting central rod, a cylinder body and a spherical flow distribution plate; the main shaft is arranged in the bearing group, the input shaft end of the main shaft is connected with the motor through a key and a coupler, the central part of the output shaft end of the main shaft is hinged with a central supporting rod, and a plurality of connecting rods are hinged along the circumferential direction of the central supporting rod; a spring is arranged in the supporting center rod, the other end of the supporting center rod penetrates through the cylinder body and is hinged with the spherical valve plate, and the main shaft and the cylinder body are arranged at a certain included angle; the other end of the connecting rod is connected with a piston group arranged in the cylinder body, and the piston group is connected with the outside through a flow passage; a pressure plate for preventing the connecting rod and the support central rod from separating from the main shaft is arranged on the end surface of the output shaft end of the main shaft; each part is arranged in the shell, the front end and the rear end of the shell are respectively provided with a front end cover and a rear end cover which are used for fixing each part, and the upper part and the lower part of the tail end of the shell are respectively provided with a pore channel matched with the spherical valve plate.
The technical scheme of the invention is further improved as follows: the piston is characterized in that a plurality of piston holes are formed in the cylinder body, a flow channel c and a flow channel f are formed in the front end and the rear end of each piston hole, a piston group is arranged in each piston hole, a rod cavity a and a rodless cavity b are formed in each piston hole, the rod cavity a is communicated with the flow channel c, the rodless cavity b is communicated with the flow channel f, each piston group comprises a piston, a guide sleeve and a clamping ring, the guide sleeves are arranged at the outer ends in the piston holes, and a ball socket is formed in the piston and forms a ball hinge by the aid of the clamping ring and a ball.
The technical scheme of the invention is further improved as follows: the spherical valve plate is internally provided with a valve window d, a valve window e, a valve window g and a valve window h, the side surface of the spherical valve plate is provided with flow channels i1 and j1, the tail end of the shell is respectively provided with pore channels i and j matched with the flow channels i1 and j1 from top to bottom, and the pore channels i and j adopt standard SAE flange interfaces.
The technical scheme of the invention is further improved as follows: and holes k and l matched with a flow distribution window e and a flow distribution window g of the spherical flow distribution plate are formed in the rear end cover, and the holes k and l adopt standard SAE flange interfaces.
The technical scheme of the invention is further improved as follows: the bearing set comprises two angular contact ball bearings and a deep groove ball bearing, and the angular contact ball bearings and the deep groove ball bearing are separated by a retaining ring.
The technical scheme of the invention is further improved as follows: the bearing set comprises two tapered roller bearings and a cylindrical bearing, and the tapered roller bearings and the cylindrical bearing are separated by a baffle ring.
The technical scheme of the invention is further improved as follows: the supporting central rod and the connecting rod are hinged with a ball socket arranged on the end face of the output shaft of the main shaft through a ball head at the end part, and the ball head at the end part of the supporting central rod is hinged with the ball socket arranged on the spherical valve plate.
The technical scheme of the invention is further improved as follows: the connecting rods are arranged to be 5 or 7 and are uniformly arranged at intervals along the circumferential direction of the supporting central rod.
The technical scheme of the invention is further improved as follows: the included angle between the main shaft and the cylinder body is set to be 8-20°。
The technical scheme of the invention is further improved as follows: the pressure plate is connected with the end surface of the output shaft end of the main shaft through a screw; the front end cover and the rear end cover are fixed with the shell through bolts.
Due to the adoption of the technical scheme, the invention has the following technical effects:
the energy recovery of the invention is based on the positive displacement energy recovery principle, the recovery efficiency is high and can reach more than 95 percent, and the invention can adapt to reverse osmosis seawater desalination systems with different water production rates by changing the area ratio of the piston rod and the piston, and can replace a high-pressure pump, an energy recovery device and a booster pump in the existing reverse osmosis seawater desalination system.
The seawater pressure recovery device adopts the change of the closed volume to pressurize the raw seawater, can adapt to a wider pressure range, has higher efficiency, more compact structure, small occupied area, convenient application and low cost, and realizes energy recovery of the residual pressure energy of the discharged concentrated seawater while pressurizing the raw seawater, thereby achieving the purpose of saving energy.
Compared with the conventional reverse osmosis system, the energy consumption of fresh water production is reduced by 20%, and great economic benefits are brought to factories. Because the production cost of the fresh water is reduced, the social problems of crisis of fresh water resources on coastal and island areas can be solved.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a schematic view of the rear end cap and the rear end of the housing of the present invention;
FIG. 3 is a schematic view of the piston assembly of the present invention;
FIG. 4 is a schematic view of the spherical port plate of the present invention;
FIG. 5 is a side view of the spherical port plate of the present invention;
the device comprises a main shaft 1, a main shaft 2, a front end cover 3, a bearing group 4, a shell 5, a pressure plate 6, a connecting rod 7, a clamping ring 8, a piston 9, a guide sleeve 10, a rear end cover 11, a spring 12, a support center rod 13, a baffle ring 14, a cylinder body 15 and a spherical valve plate.
Detailed Description
The technical solution of the present invention will be clearly and completely described by the following detailed description. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention. The concentrated seawater is waste concentrated seawater generated by a reverse osmosis seawater desalination system in the seawater desalination process; the raw material seawater is seawater directly obtained from the sea.
The invention discloses an energy recovery type inclined shaft type seawater desalination high-pressure pump, which is used for recovering the residual pressure energy of discharged concentrated seawater, occupies small area and is convenient to apply, and the energy recovery type inclined shaft type seawater desalination high-pressure pump is shown in the following specific embodiment:
example 1
An energy recovery type inclined shaft type seawater desalination high-pressure pump is shown in figure 1: the spherical thrust plate comprises a main shaft 1, a front end cover 2, a bearing group 3, a shell 4, a pressure plate 5, a connecting rod, a piston group, a rear end cover 10, a spring 11, a supporting central rod 12, a cylinder body 14 and a spherical thrust plate 5. The bearing set 3 comprises two angular contact ball bearings and a deep groove ball bearing, and the angular contact ball bearings and the deep groove ball bearings are separated by a baffle ring 13. The main shaft 1 is arranged in the bearing set 3, the input shaft end of the main shaft is connected with the motor through a key and a coupler, the center and the periphery of the end face of the output shaft end of the main shaft 1 are respectively provided with one or more ball sockets and are in adaptive connection with a ball head at one end of the central supporting rod 12 through the central ball sockets, the ball sockets uniformly arranged at the periphery are in adaptive connection with a ball head at one end of the connecting rod 6, the end face is in screw connection with the pressure plate 5, and the connecting rod 6 and the central supporting rod 12 are stably and reliably connected with the main shaft. The other end of the supporting central rod 12 penetrates through the cylinder body 14 and is arranged in a ball socket of the spherical valve plate 15, a spring 11 is arranged in the supporting central rod and can press the cylinder body 14 to the spherical valve plate 15, and the main shaft 1 and the cylinder body 14 form an included angle of 8-20 degrees; all the parts are arranged in a shell 4, the front end and the rear end of the shell 4 are respectively fixed with a front end cover 2 and a rear end cover 10 through bolts, as shown in fig. 2, holes i and j are formed in the upper portion and the lower portion of the tail end of the shell 4, and the holes i and j adopt standard SAE flange interfaces.
As shown in fig. 1, the cylinder 14 has piston holes inside, and a concentrated seawater flow passage c and a raw seawater flow passage f are opened at the front and rear ends of each piston hole, and a piston group is arranged in each piston hole to form a rod chamber a and a rodless chamber b, wherein the rod chamber a is communicated with the concentrated seawater flow passage c, and the rodless chamber f is communicated with the raw seawater flow passage f. As shown in fig. 3, the piston set comprises a piston 8, a guide sleeve 9 and a snap ring 7, wherein the guide sleeve 9 is arranged at the outer end in the piston hole to limit the outward movement range of the piston 8; and a ball socket is formed in the piston 8, and a ball joint is formed by the snap ring 7 and the ball head at the other end of the connecting rod 6.
As shown in fig. 1, a distribution window d for discharging the working concentrated seawater, a distribution window e for sucking the raw material seawater, a distribution window g for pressing out the pressurized raw material seawater, and a distribution window h for allowing the pressure energy concentrated seawater to enter are arranged in the spherical distribution plate 15.
As shown in fig. 5, the side surface of the spherical port plate 15 is provided with flow passages i1 and j1 which are matched with the holes i and j; as shown in fig. 2, the rear end cap 10 is provided with holes k and l which are matched with a raw material seawater suction distribution window e of the spherical distribution plate 15 and a pressurized raw material seawater extrusion distribution window g, and both the holes k and l adopt standard SAE flange interfaces.
Example 2
An energy recovery type inclined shaft type seawater desalination high-pressure pump is shown in figure 1: the hydraulic drive device comprises a main shaft 1, a front end cover 2, a bearing group 3, a shell 4, a pressure plate 5, a connecting rod, a piston group, a rear end cover 10, a spring 11, a support central rod 12, a cylinder body 14 and a spherical port plate 15. The bearing set 3 comprises two tapered roller bearings and a cylindrical bearing, and the tapered roller bearings and the cylindrical bearing are separated by a baffle ring 13. The remaining components and configurations are the same as those in embodiment 1.
The operation process of the invention is as follows:
one of the pistons shown in fig. 1 is located at the left limit position, when the motor drives the main shaft 1 to rotate anticlockwise through the coupler and the key, the main shaft 1 drives the cylinder 14 to rotate through the connecting rod 6, the piston enters the extrusion area from the suction area, the piston moves rightwards, the volume of the rod cavity a is increased, the volume of the rodless cavity b is reduced, high-pressure concentrated seawater enters the rod cavity a through the flow channel j of the shell 4, the flow channel j1 of the spherical flow distribution plate 15, the flow distribution window h of the spherical flow distribution plate 15 and the flow channel c of the cylinder 14 to pressurize raw seawater of the rodless cavity, and the pressurized raw seawater enters the reverse osmosis seawater desalination system through the flow channel f of the cylinder 14, the flow distribution window g of the spherical flow distribution plate 15, the hole l of the rear end cover hole 10 and an.
Meanwhile, the piston positioned in the suction area moves leftwards, the volume of the rod cavity b is increased, the volume of the rodless cavity a is reduced, and the concentrated seawater after acting is discharged through a flow channel c of the cylinder body 14, a flow distribution window d of the spherical flow distribution plate 15, a side hole i1 of the spherical flow distribution plate 15 and a flow channel i of the shell 4; raw material seawater enters the rodless cavity b through a hole k of the rear end cover 10, a flow distribution window e of the spherical flow distribution plate 15 and a flow passage f on the cylinder 14. Along with the rotation of the main shaft, each piston alternately sucks raw seawater and presses in concentrated seawater, presses out raw seawater and discharges concentrated seawater.
Claims (10)
1. An energy recovery type inclined shaft type seawater desalination high-pressure pump is characterized in that: the hydraulic drive device comprises a main shaft (1), a front end cover (2), a bearing group (3), a shell (4), a pressure plate (5), a connecting rod (6), a piston group, a rear end cover (10), a spring (11), a supporting central rod (12), a cylinder body (14) and a spherical flow distribution plate (15); the main shaft (1) is arranged in the bearing group (3), the input shaft end of the main shaft is connected with the motor through a key and a coupler, the central part of the output shaft end of the main shaft (1) is hinged with a central supporting rod (12), and a plurality of connecting rods (6) are hinged along the circumferential direction of the central supporting rod (12); a spring (11) is arranged in the supporting center rod (12), the other end of the supporting center rod penetrates through the cylinder body (14) to be hinged with the spherical valve plate (15), and the main shaft (1) and the cylinder body (14) are arranged at a certain included angle; the other end of the connecting rod (6) is connected with a piston group arranged in the cylinder body (14), and the piston group is connected with the outside through a flow passage; a pressure plate (5) for preventing the connecting rod (6) and the support central rod (12) from separating from the main shaft (1) is arranged on the end surface of the output shaft end of the main shaft (1); all the parts are arranged in a shell (4), a front end cover (2) and a rear end cover (10) which are used for fixing all the parts are respectively arranged at the front end and the rear end of the shell (4), and pore channels matched with the spherical valve plate (15) are respectively arranged at the upper part and the lower part of the tail end of the shell (4).
2. The energy recovery type inclined shaft type seawater desalination high-pressure pump according to claim 1, characterized in that: the piston is characterized in that a plurality of piston holes are formed in the cylinder body (14), a flow channel c and a flow channel f are formed in the front end and the rear end of each piston hole, a piston group is arranged in each piston hole, a rod cavity a and a rodless cavity b are formed in each piston hole, the rod cavity a is communicated with the flow channel c, the rodless cavity b is communicated with the flow channel f, each piston group comprises a piston (8), a guide sleeve (9) and a clamping ring (7), the guide sleeves (9) are arranged at the outer ends in the piston holes, a ball socket is formed in the piston (8), and the clamping ring (7) and a ball head at the other end of the connecting rod (6) form.
3. The energy recovery type inclined shaft type seawater desalination high-pressure pump according to claim 1, characterized in that: the spherical valve plate (15) is internally provided with a valve window d, a valve window e, a valve window g and a valve window h, the side surface of the spherical valve plate (15) is provided with flow channels i1 and j1, the tail end of the shell (4) is respectively provided with pore channels i and j matched with the flow channels i1 and j1 from top to bottom, and the pore channels i and j adopt standard SAE flange interfaces.
4. The energy recovery type inclined shaft type seawater desalination high-pressure pump according to claim 1, characterized in that: holes k and l matched with a flow distribution window e and a flow distribution window g of the spherical flow distribution plate (15) are formed in the rear end cover (10), and standard SAE flange interfaces are adopted for the holes k and l.
5. The energy recovery type inclined shaft type seawater desalination high-pressure pump according to claim 1, characterized in that: the bearing set (3) comprises two angular contact ball bearings and a deep groove ball bearing, and the angular contact ball bearings and the deep groove ball bearing are separated by a baffle ring (13).
6. The energy recovery type inclined shaft type seawater desalination high-pressure pump according to claim 1, characterized in that: the bearing group (3) comprises two tapered roller bearings and a cylindrical bearing, and the tapered roller bearings and the cylindrical bearing are separated by a baffle ring (13).
7. The energy recovery type inclined shaft type seawater desalination high-pressure pump according to claim 1, characterized in that: the supporting central rod (12) and the connecting rod (6) are hinged with a ball socket arranged on the end face of the output shaft of the main shaft (1) through a ball head at the end part, and the ball head at the end part of the supporting central rod (12) is hinged with the ball socket arranged on the spherical valve plate (15).
8. The energy recovery type inclined shaft type seawater desalination high-pressure pump according to claim 1, characterized in that: the connecting rods (6) are arranged to be 5 or 7 and are uniformly arranged at intervals along the circumferential direction of the supporting central rod (12).
9. The energy recovery type inclined shaft type seawater desalination high-pressure pump according to claim 1, characterized in that: the included angle between the main shaft (1) and the cylinder body (14) is set to be 8-20°。
10. The energy recovery type inclined shaft type seawater desalination high-pressure pump according to claim 4, characterized in that: the pressure plate (5) is connected with the end face of the output shaft end of the main shaft (1) through a screw; the front end cover (2) and the rear end cover (10) are fixed with the shell (4) through bolts.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990041.5A CN112177877A (en) | 2020-09-18 | 2020-09-18 | Energy recovery type inclined shaft type seawater desalination high-pressure pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010990041.5A CN112177877A (en) | 2020-09-18 | 2020-09-18 | Energy recovery type inclined shaft type seawater desalination high-pressure pump |
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| CN112177877A true CN112177877A (en) | 2021-01-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010990041.5A Pending CN112177877A (en) | 2020-09-18 | 2020-09-18 | Energy recovery type inclined shaft type seawater desalination high-pressure pump |
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| CN (1) | CN112177877A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204877818U (en) * | 2015-08-07 | 2015-12-16 | 合肥赛特液压科技有限公司 | Oblique axis formula constant delivery pump |
| CN106150958A (en) * | 2015-05-11 | 2016-11-23 | 林德液压两合公司 | The hydrostatic axial piston machine of inclined shaft frame mode |
| CN106837728A (en) * | 2017-02-21 | 2017-06-13 | 哈尔滨工业大学 | A kind of multi-row-type inclined shaft axial plunger pump |
| CN108869224A (en) * | 2018-06-14 | 2018-11-23 | 中航力源液压股份有限公司 | A kind of high revolving speed bores the design method of plunger pump or motor |
| CN111237155A (en) * | 2020-02-28 | 2020-06-05 | 燕山大学 | Through-shaft axial piston pump capable of realizing energy recovery |
-
2020
- 2020-09-18 CN CN202010990041.5A patent/CN112177877A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106150958A (en) * | 2015-05-11 | 2016-11-23 | 林德液压两合公司 | The hydrostatic axial piston machine of inclined shaft frame mode |
| CN204877818U (en) * | 2015-08-07 | 2015-12-16 | 合肥赛特液压科技有限公司 | Oblique axis formula constant delivery pump |
| CN106837728A (en) * | 2017-02-21 | 2017-06-13 | 哈尔滨工业大学 | A kind of multi-row-type inclined shaft axial plunger pump |
| CN108869224A (en) * | 2018-06-14 | 2018-11-23 | 中航力源液压股份有限公司 | A kind of high revolving speed bores the design method of plunger pump or motor |
| CN111237155A (en) * | 2020-02-28 | 2020-06-05 | 燕山大学 | Through-shaft axial piston pump capable of realizing energy recovery |
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Application publication date: 20210105 |