CN108266372B - Valve type flow distribution radial plunger emulsion pump - Google Patents
Valve type flow distribution radial plunger emulsion pump Download PDFInfo
- Publication number
- CN108266372B CN108266372B CN201810177077.4A CN201810177077A CN108266372B CN 108266372 B CN108266372 B CN 108266372B CN 201810177077 A CN201810177077 A CN 201810177077A CN 108266372 B CN108266372 B CN 108266372B
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- plunger
- pump
- liquid inlet
- telescopic cylinder
- valve
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- 239000000839 emulsion Substances 0.000 title claims abstract description 33
- 239000007788 liquid Substances 0.000 claims abstract description 79
- 239000003921 oil Substances 0.000 claims description 40
- 238000005461 lubrication Methods 0.000 claims description 15
- 239000012530 fluid Substances 0.000 claims description 2
- 239000010720 hydraulic oil Substances 0.000 claims description 2
- 239000010687 lubricating oil Substances 0.000 abstract description 34
- 230000004044 response Effects 0.000 abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 20
- 238000010521 absorption reaction Methods 0.000 description 5
- 239000003245 coal Substances 0.000 description 3
- 238000009434 installation Methods 0.000 description 3
- 238000005065 mining Methods 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000009471 action Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000005299 abrasion Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 229910052500 inorganic mineral Inorganic materials 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011707 mineral Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
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
- 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
- F04B53/006—Crankshafts
-
- 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
- F04B53/10—Valves; Arrangement of valves
-
- 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
- F04B53/162—Adaptations of cylinders
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B53/00—Component parts, details or accessories not provided for in, or of interest apart from, groups F04B1/00 - F04B23/00 or F04B39/00 - F04B47/00
- F04B53/18—Lubricating
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Details Of Reciprocating Pumps (AREA)
- Reciprocating Pumps (AREA)
Abstract
The invention belongs to the technical field of hydraulic pumps, and particularly relates to a valve type flow distribution radial plunger emulsion pump. In order to improve rated pressure and shorten the response time of a distributing valve, the working medium emulsion and lubricating oil are separated, the oil-saving pump comprises a plunger pump body and an axial telescopic cylinder assembly, the axial telescopic cylinder assembly comprises a pump cylinder body, a liquid inlet valve, a plunger cavity end cover, an axial telescopic cylinder, a liquid discharge valve, a cylinder sleeve and a plunger, a five-star wheel in contact with the plunger is arranged in the plunger pump body, the five-star wheel is arranged on a crankshaft, a high-water-base medium total liquid inlet a and a high-water-base medium total liquid outlet i are arranged at the bottom of the plunger pump body, the high-water-base medium total liquid inlet a is connected with the liquid inlet valve, and the high-water-base medium total liquid outlet i is connected with the liquid discharge valve. The invention reduces the failure rate and prolongs the service life of the plunger.
Description
Technical Field
The invention belongs to the technical field of hydraulic pumps, and particularly relates to a valve type flow distribution radial plunger emulsion pump.
Background
The emulsion pump is a common plunger reciprocating pump, is commonly used for a coal mining working face, is a power source of a hydraulic support system in high-yield high-efficiency comprehensive mechanized coal mining supporting equipment, and has very important position in the comprehensive coal mining working face. At present, the horizontal three-plunger pump driven by gear reduction is widely used in China, so that the space of a mine is saved, the installation of an emulsion pump under the mine is convenient, the traditional gear reduction mode is abandoned, and a motor is directly adopted to drive the emulsion pump to operate. The rotation speed of the emulsion pump is increased from 500 rpm to 1500 rpm, so that the conventional one-way valve cannot meet the flow distribution requirement of the emulsion pump running at high speed, and the invention of a high-speed response flow distribution valve is needed to ensure the normal running of the high-speed emulsion pump.
The traditional horizontal plunger emulsion pump has large occupied area and complex installation, and the friction force between the plunger and the plunger pump is large during operation, so that the working efficiency is reduced; in addition, a series of sealing devices are required to be installed to avoid mutual leakage of emulsion and lubricating oil, and the structure is complex. The novel emulsion pump structure is necessary for solving the problems of the existing emulsion pump, and has important practical significance for promoting the development of mineral products in China with high quality, high efficiency and low cost.
Disclosure of Invention
The invention provides a valve type flow distribution radial plunger emulsion pump, which aims to improve rated pressure, shorten response time of a flow distribution valve, realize separation of working medium emulsion and lubricating oil.
The invention adopts the following technical scheme: a valve-type flow-distributing radial plunger emulsion pump comprises a plunger pump body and an axial telescopic cylinder component,
the axial telescopic cylinder assembly comprises a pump cylinder body, a liquid inlet valve, a plunger cavity end cover, an axial telescopic cylinder, a liquid discharge valve, a cylinder sleeve and a plunger, wherein the cylinder sleeve is sleeved in the pump cylinder body, the axial telescopic cylinder is arranged on the upper portion of the cylinder sleeve, the bottom of the cylinder sleeve is welded with the plunger, the middle of the axial telescopic cylinder is provided with an axial telescopic cylinder liquid inlet and outlet e, one end of the axial telescopic cylinder liquid inlet and outlet e is communicated with the inside of the cylinder sleeve, the other end of the axial telescopic cylinder liquid inlet and outlet e is communicated with an inner runner d of the plunger cavity end cover, and two ends of the inner runner d of the plunger cavity end cover are respectively provided with the liquid inlet valve and the liquid discharge valve.
The plunger pump body in be provided with the five-star wheel with the plunger contact, five-star wheel installs on the bent axle, and high water-based medium total feed liquor mouth a and high water-based medium total drain mouth i have been seted up to the plunger pump body bottom, high water-based medium total feed liquor mouth a is connected with the feed liquor valve, high water-based medium total drain mouth i is connected with the drain valve. When the emulsion pump runs, the crankshaft drives the five-star wheel to do plane motion, and the connecting plunger is pushed to do radial reciprocating motion, so that the bellows plunger cavity does telescopic change. Under the action of the five star wheels, the connecting plunger moves inwards along the radial direction, the inner volume of the corrugated tube plunger cavity is increased, at the moment, emulsion passes through a main liquid inlet on the pump body and a liquid inlet annular flow passage in the cylinder body, flows through a high-frequency response liquid inlet valve and enters the corrugated tube plunger cavity, and liquid suction is completed; under the action of the five-star wheel, the connecting plunger moves outwards along the radial direction, the inner volume of the cavity of the corrugated pipe plunger is reduced, at the moment, emulsion is discharged from the emulsion pump through the high-frequency response liquid discharge valve, the emulsion flows through the liquid discharge annular flow passage in the cylinder body and the main liquid discharge port, liquid discharge is completed, and high-pressure emulsion is output. A lubricating oil way is arranged in the five star wheels and is communicated with the plunger. The lubricating oil enters the lubricating oil working area through the lubricating oil way, and a static pressure support is formed between the connecting plunger and the five-star wheel, so that the mechanical efficiency of the emulsion pump is improved.
Further, an arc oil groove o is formed in the crankshaft, 5 lubrication through holes are formed in the end faces of the five-star wheels, the arc oil groove o is communicated with the lubrication through holes, a lubrication oil duct f is formed between the cylinder sleeve and the corrugated pipe plunger cavity, and the lubrication oil duct f is communicated with the arc oil groove o in the crankshaft. The circular arc oil groove o is communicated with the lubrication through hole, a lubrication oil way is arranged between the cylinder sleeve and the corrugated pipe plunger cavity, and the circular arc oil groove o is communicated with the circular arc oil groove o on the crankshaft so as to realize plunger lubrication. Because the working medium emulsion exists in the corrugated pipe plunger cavity, the lubricating oil works in the gap between the cylinder sleeve and the corrugated pipe plunger cavity, namely a lubricating oil working area. The oil is completely separated by the structure, so that the mutual mixing of the power medium emulsion and the mechanical lubricating oil is avoided.
Compared with the prior art, the invention has the following beneficial effects:
1) The invention adopts the novel plunger structure, the volume of the plunger cavity of the structure is increased, the corresponding rated pressure is also improved, and in addition, the structure completely separates the emulsion of the working medium from the lubricating oil, thereby avoiding oil leakage and mixing. Thereby reducing the failure rate and prolonging the service life of the plunger.
2) The invention changes the original flow distribution mode, utilizes the high-frequency response liquid inlet valve and the high-frequency response liquid outlet valve to distribute flow, solves the problem of response lag of the liquid inlet valve and the liquid outlet valve of the traditional pump, and improves and increases the volumetric efficiency of the emulsion pump.
3) The invention fully utilizes the advantages of the radial plunger type emulsion pump, has shorter axial dimension and saves great installation space. And reduces the weight of the pump body to more than half of the traditional pump.
Drawings
FIG. 1 is a schematic diagram of an embodiment of the present invention;
FIG. 2 is a schematic diagram of a five-star wheel unit structure of the camshaft of the present invention;
FIG. 3 is an enlarged fragmentary view of the axially telescoping cylinder assembly of the present invention;
wherein: the hydraulic oil pump comprises a 1-pump bearing left end cover, a 2-pump left end cover, a 3-crankshaft, a 4-tapered roller bearing, a 5-pump cylinder body, a 6-liquid inlet valve, a 7-plunger cavity end cover, an 8-axially telescopic cylinder, a 9-liquid discharge valve, a 10-cylinder sleeve, an 11-plunger, a 12-pump bearing right end cover, a 13-pump right end cover, a 14-five star wheel, an a-high water-based medium total liquid inlet, a b-high water-based medium liquid inlet annular flow passage, a c-lubricating oil total liquid inlet, a d-plunger cavity end cover inner flow passage, an e-axially telescopic cylinder liquid inlet and outlet, an f-lubricating oil duct, a g-lubricating oil closed volume, an h-high water-based medium liquid return annular flow passage, an i-high water-based medium total liquid discharge port, a j-n five star wheel inner lubricating oil through hole, an o-arc oil groove and a p-lubricating oil inlet oil duct.
Detailed Description
The following describes in detail examples of the present invention, which are carried out on the premise of the technical solution of the present invention, and give detailed embodiments and specific operation procedures, but the scope of the present invention is not limited to the following examples.
As shown in fig. 1, a valve-type fluid dispensing radial plunger emulsion pump includes a plunger pump body and an axially telescoping cylinder assembly.
The axial telescopic cylinder assembly comprises a pump cylinder body 5, a liquid inlet valve 6, a plunger cavity end cover 7, an axial telescopic cylinder 8, a liquid discharge valve 9, a cylinder sleeve 10 and a plunger 11, wherein the cylinder sleeve 10 is sleeved in the pump cylinder body 5, a corrugated pipe plunger cavity is arranged in the cylinder sleeve 10, the axial telescopic cylinder 8 is arranged on the upper portion of the corrugated pipe plunger cavity, the bottom of the corrugated pipe plunger cavity is welded with the plunger 11, an axial telescopic cylinder inlet and outlet e is arranged in the middle of the axial telescopic cylinder 8, one end of the axial telescopic cylinder inlet and outlet e is communicated with the interior of the cylinder sleeve 10, the other end of the axial telescopic cylinder inlet and outlet e is communicated with an interior flow passage d of the plunger cavity end cover arranged on the plunger cavity end cover 7, and the two ends of the interior flow passage d of the plunger cavity end cover are respectively provided with the liquid inlet valve 6 and the liquid discharge valve.
The plunger pump body in be provided with the five star wheels 14 that contact with plunger 11, five star wheels 14 are installed on bent axle 3, and high water base medium total feed liquor mouth a and high water base medium total drain mouth i have been seted up to the plunger pump body bottom, and high water base medium total feed liquor mouth a is connected with feed liquor valve 6, and high water base medium total drain mouth i is connected with drain valve 9. The plunger pump body consists of a pump bearing left end cover 1, a pump left end cover 2, a pump bearing right end cover 12 and a pump right end cover 13, and a crankshaft 3 is arranged in the plunger pump body through a tapered roller bearing 4.
The crankshaft 3 is provided with an arc oil groove o, each end face of the five-star wheel 14 is provided with 5 lubrication through holes, the arc oil groove o is communicated with the lubrication through holes, a lubrication oil duct f is arranged between the plunger cylinder sleeve 13 and the corrugated pipe plunger cavity, and the lubrication oil duct f is communicated with the arc oil groove o on the crankshaft 3.
Wherein: two circular arc oil grooves o are respectively formed at two ends of the eccentric direction of the crankshaft 3, a five-star wheel 14 is arranged at the cam of the eccentric shaft, 5 lubricating oil through holes j-n are formed at each end face of the five-star wheel, the five-star wheel moves in a plane and always keeps contact with the bottom of the plunger, and the cam part of the crankshaft is in angular velocity relative to the five-star wheelThe crankshaft 3 is a power shaft and a lubricating oil distributing shaft, and the lubricating oil reaches the column through a total liquid inlet c and a lubricating oil liquid inlet path p on the crankshaft, an arc-shaped oil groove o formed by two half faces of the eccentric wheel which are cut off and 5 oil through holes j-n on the five star wheelsThe bottom of the plug, the cut part of the eccentric wheel and 5 oil holes on the five star wheels form the function of the flow distribution valve.
As shown in figure 3, the cylinder sleeve 10 is sleeved on the pump cylinder body 5, the axially telescopic cylinder 8 is correspondingly arranged on the cylinder sleeve, the plunger 11 is welded with the bottom of the axially telescopic cylinder, and the plunger cannot be separated from the cylinder sleeve when reciprocating up and down, so that the cylinder sleeve, the axially telescopic cylinder and the plunger can form a sealed volume g of lubricating oil, the bottom of the plunger always keeps contact with a five-star wheel, an oil groove is formed to realize static pressure support, and the liquid inlet valve 6 and the liquid outlet valve 9 are arranged on the plunger cavity end cover 7 and used for controlling the inlet and outlet of a high-water-based medium to ensure the normal operation of the pump.
The device works in the following way: the low-pressure high-water-based medium is sucked into the axially telescopic cylinder through the total liquid inlet, the liquid inlet annular flow passage and the liquid inlet valve, and the high-pressure high-water-based medium in the axially telescopic cylinder is discharged out of the pump body through the liquid discharge valve, the liquid return annular flow passage and the total liquid discharge port; the lubricating oil reaches the bottom of the plunger through the two parts cut off by the eccentric wheel and the oil through holes on the five star wheels through the lubricating oil main liquid inlet on the crankshaft and the flow channel inside the crankshaft, thus completing oil absorption. As shown in fig. 1, taking as an example the case of draining liquid from an axially retractable cylinder: when the motor is started to drive the pump to operate, the crankshaft rotates and drives the five-star wheel to do plane motion, the plane motion of the five-star wheel is decomposed into a horizontal motion and a vertical motion, at the moment, the five-star wheel moves upwards in the vertical direction so as to push the plunger to move upwards, and the bottom of the axially telescopic cylinder is welded with the plunger, so that the axially telescopic cylinder is promoted to shrink, the airtight volume of a high-water-base medium in the axially telescopic cylinder is reduced, the liquid discharge of the high-pressure high-water-base medium is realized, and the high-pressure high-water-base medium flows through the liquid inlet and the liquid outlet at the top of the axially telescopic cylinder and the inner flow channel of the end cover of the plunger cavity, flows through the liquid discharge valve and the liquid return annular flow channel and is discharged through the total liquid discharge outlet; meanwhile, because the plunger moves upwards and the axial telescopic cylinder contracts, the airtight volume of lubricating oil formed by the cylinder sleeve, the axial telescopic cylinder and the plunger is reduced, so that high-pressure lubricating oil is generated, the generated high-pressure lubricating oil is used for realizing the internal and external pressure balance of the axial telescopic cylinder on the one hand, the normal operation and the service life of the axial telescopic cylinder are ensured, and on the other hand, the high-pressure lubricating oil reaches the oil groove at the bottom of the plunger through the lubricating oil circuit inside the plunger to realize the static pressure support with the five star wheels, so that the abrasion between the five star wheels and two kinematic pairs of the plunger is reduced, and the service life of the pump is ensured. At this time, the lubricating oil inlet oil path in the crankshaft is not communicated with the oil through hole in the five-star wheel corresponding to the plunger.
When the axial flexible telescopic cylinder absorbs liquid, the plane motion of the five star wheels is decomposed into a horizontal motion and a vertical motion, at the moment, the five star wheels move downwards in the vertical direction, at the moment, the axial telescopic cylinder expands downwards due to the scalability of the five star wheels, the plunger is driven to move downwards, so that the airtight volume of a high-pressure water-based medium in the plunger is increased, the liquid absorption of the low-pressure high-pressure water-based medium is realized, and the liquid absorption of the low-pressure high-pressure water-based medium is completed through the total liquid inlet, the liquid inlet annular flow passage and the liquid inlet valve, and the liquid inlet and the liquid outlet at the top of the axial telescopic cylinder; meanwhile, because of the downward expansion movement of the axial telescopic cylinder and the downward movement of the plunger, the airtight volume of lubricating oil formed by the cylinder sleeve, the axial telescopic cylinder and the plunger is increased, and the oil absorption of the lubricating oil is carried out. At this time, the lubricating oil inlet oil way in the crankshaft is communicated with the oil through holes in the five star wheels corresponding to the plungers, and the lubricating oil passes through the main liquid inlet on the crankshaft and the lubricating oil way in the crankshaft, and directly reaches the oil grooves at the bottoms of the plungers through the arc-shaped oil grooves formed by the two half faces of the eccentric wheel which are cut off and the oil through holes on the five star wheels, so that oil absorption is completed.
The embodiments of the present invention in a high water-based plunger motor are similar to high water-based plunger pumps and are not subject to excessive complaints herein.
Claims (2)
1. A valve-type flow-distributing radial plunger emulsion pump, which is characterized in that: the hydraulic oil pump comprises a plunger pump body and an axial telescopic cylinder assembly, wherein the axial telescopic cylinder assembly comprises a pump cylinder body (5), a liquid inlet valve (6), a plunger cavity end cover (7), an axial telescopic cylinder (8), a liquid outlet valve (9), a cylinder sleeve (10) and a plunger (11), the cylinder sleeve (10) is sleeved in the pump cylinder body (5), a corrugated pipe plunger cavity is arranged in the cylinder sleeve (10), the axial telescopic cylinder (8) is arranged on the upper part of the corrugated pipe plunger cavity, the bottom of the corrugated pipe plunger cavity is welded with the plunger (11), an axial telescopic cylinder liquid inlet and outlet (e) are arranged in the middle of the axial telescopic cylinder (8), one end of the axial telescopic cylinder liquid inlet and outlet (e) is communicated with the inside of the cylinder sleeve (10), the other end of the axial telescopic cylinder liquid inlet and outlet (e) is communicated with an inside runner (d) of the plunger cavity end cover arranged on the plunger cavity end cover (7), and the two ends of the inside runner (d) of the plunger cavity end cover are respectively provided with the liquid inlet valve (6) and the liquid outlet valve (9);
the plunger pump body is internally provided with a five-star wheel (14) which is contacted with a plunger (11), the five-star wheel (14) is arranged on a crankshaft (3), the bottom of a plunger pump body is provided with a high-water-base medium total liquid inlet (a) and a high-water-base medium total liquid outlet (i), the high-water-base medium total liquid inlet (a) is connected with a liquid inlet valve (6), and the high-water-base medium total liquid outlet (i) is connected with a liquid outlet valve (9);
the plunger pump body comprises a pump bearing left end cover (1), a pump left end cover (2), a pump bearing right end cover (12) and a pump right end cover (13), and the crankshaft (3) is arranged inside the plunger pump body through a tapered roller bearing (4).
2. The valve-type fluid dispensing radial plunger emulsion pump of claim 1 wherein: an arc oil groove (o) is formed in the crankshaft (3), 5 lubrication through holes are formed in the end faces of the five-star wheels (14), the arc oil groove (o) is communicated with the lubrication through holes, a lubrication oil duct (f) is formed between the cylinder sleeve (10) and the corrugated pipe plunger cavity, and the lubrication oil duct (f) is communicated with the arc oil groove (o) in the crankshaft (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810177077.4A CN108266372B (en) | 2018-03-04 | 2018-03-04 | Valve type flow distribution radial plunger emulsion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810177077.4A CN108266372B (en) | 2018-03-04 | 2018-03-04 | Valve type flow distribution radial plunger emulsion pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108266372A CN108266372A (en) | 2018-07-10 |
| CN108266372B true CN108266372B (en) | 2024-02-20 |
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ID=62774517
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810177077.4A Active CN108266372B (en) | 2018-03-04 | 2018-03-04 | Valve type flow distribution radial plunger emulsion pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108266372B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111502904A (en) * | 2020-05-18 | 2020-08-07 | 何作勇 | Oil distribution mechanism of radial plunger hydraulic motor |
| CN116538060B (en) * | 2023-06-02 | 2024-01-30 | 深圳市益思精密五金有限公司 | Distributed folding diaphragm pump |
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|---|---|---|---|---|
| GB9700715D0 (en) * | 1996-01-17 | 1997-03-05 | Unisia Jecs Corp | Radial plunger pump |
| JPH09236079A (en) * | 1996-02-29 | 1997-09-09 | Unisia Jecs Corp | Radial plunger pump |
| JP2001355568A (en) * | 2001-05-07 | 2001-12-26 | Nippon Pillar Packing Co Ltd | Pump for semiconductor manufacturing device |
| DE102008002195A1 (en) * | 2008-06-04 | 2009-12-10 | Robert Bosch Gmbh | Plug-in pump for internal combustion engine, has hollow cylinder and piston end connected with each other in fluid-tight manner by bellows, where annular space enclosing piston is attached to leakage line |
| CN103696921A (en) * | 2013-12-13 | 2014-04-02 | 西安交通大学 | Valve flow distribution radial plunger hydraulic pump adopting hydraulic pressure return stroke |
| CN103742378A (en) * | 2013-12-19 | 2014-04-23 | 西安交通大学 | Radial plunger hydraulic pump adopting slide valves for flow distribution |
| CN106014901A (en) * | 2016-06-21 | 2016-10-12 | 西安交通大学 | Pressure compensation type end face oil distribution double-row radial plunger variable pump with annular piston |
| CN208203545U (en) * | 2018-03-04 | 2018-12-07 | 太原理工大学 | A kind of valve type flow radial plunger emulsion pump |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2454840B (en) * | 2006-07-20 | 2011-05-04 | Joseph D Sieber | Wave transducer having variable energy piston assembly |
| CN208203465U (en) * | 2018-03-04 | 2018-12-07 | 太原理工大学 | A kind of valve type flow radial plunger emulsion motor |
-
2018
- 2018-03-04 CN CN201810177077.4A patent/CN108266372B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9700715D0 (en) * | 1996-01-17 | 1997-03-05 | Unisia Jecs Corp | Radial plunger pump |
| JPH09236079A (en) * | 1996-02-29 | 1997-09-09 | Unisia Jecs Corp | Radial plunger pump |
| JP2001355568A (en) * | 2001-05-07 | 2001-12-26 | Nippon Pillar Packing Co Ltd | Pump for semiconductor manufacturing device |
| DE102008002195A1 (en) * | 2008-06-04 | 2009-12-10 | Robert Bosch Gmbh | Plug-in pump for internal combustion engine, has hollow cylinder and piston end connected with each other in fluid-tight manner by bellows, where annular space enclosing piston is attached to leakage line |
| CN103696921A (en) * | 2013-12-13 | 2014-04-02 | 西安交通大学 | Valve flow distribution radial plunger hydraulic pump adopting hydraulic pressure return stroke |
| CN103742378A (en) * | 2013-12-19 | 2014-04-23 | 西安交通大学 | Radial plunger hydraulic pump adopting slide valves for flow distribution |
| CN106014901A (en) * | 2016-06-21 | 2016-10-12 | 西安交通大学 | Pressure compensation type end face oil distribution double-row radial plunger variable pump with annular piston |
| CN208203545U (en) * | 2018-03-04 | 2018-12-07 | 太原理工大学 | A kind of valve type flow radial plunger emulsion pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108266372A (en) | 2018-07-10 |
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