CN109441753B - Pendulum type R plug pump - Google Patents
Pendulum type R plug pump Download PDFInfo
- Publication number
- CN109441753B CN109441753B CN201811610678.6A CN201811610678A CN109441753B CN 109441753 B CN109441753 B CN 109441753B CN 201811610678 A CN201811610678 A CN 201811610678A CN 109441753 B CN109441753 B CN 109441753B
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- CN
- China
- Prior art keywords
- working cavity
- sliding block
- water outlet
- water inlet
- pump body
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 119
- 238000003825 pressing Methods 0.000 claims description 19
- 238000007789 sealing Methods 0.000 claims description 18
- 239000000463 material Substances 0.000 claims description 5
- 238000000034 method Methods 0.000 claims description 3
- 238000010521 absorption reaction Methods 0.000 abstract description 5
- 230000010349 pulsation Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 4
- 210000004907 gland Anatomy 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 229910001339 C alloy Inorganic materials 0.000 description 1
- 230000001133 acceleration Effects 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B9/00—Piston machines or pumps characterised by the driving or driven means to or from their working members
- F04B9/02—Piston machines or pumps characterised by the driving or driven means to or from their working members the means being mechanical
-
- 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
-
- 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
Abstract
A deflection type R plug pump comprises a pump body, wherein an eccentric shaft penetrates through a working cavity of the pump body, side plates and end covers are respectively arranged at two ends of the working cavity, the cross section of the working cavity is in a runway shape, a sliding block is mounted in the working cavity in a sliding clearance fit manner, and the outer edge of the sliding block is in the runway shape and forms a working clearance with the inner wall of the working cavity; the center of the sliding block is provided with a runway-shaped mounting hole, the eccentric section of the eccentric shaft passes through the mounting hole, and a needle bearing is arranged between the eccentric section and the mounting hole; when the eccentric shaft rotates for a circle, the eccentric section drives the sliding block to reciprocate in the working cavity for a stroke; two water inlet channels and two water outlet channels are respectively arranged at two ends of the working cavity on the pump body, the two water inlet channels are respectively communicated with the water inlet interface, and the two water outlet channels are respectively communicated with the water outlet interface; the water inlet channel and the water outlet channel are respectively provided with one-way valves, and the opening directions of the one-way valves corresponding to the same end of the working cavity are opposite. The pump has small pulsation, stable operation, double suction and double discharge, strong self-absorption capacity and high efficiency.
Description
Technical Field
The invention relates to a water pump, in particular to a deflection type R plug pump.
Background
A reciprocating pump is a delivery machine that directly provides energy in the form of pressure energy to a liquid by the reciprocating motion of a piston. The reciprocating pump comprises a piston pump, a metering pump and a diaphragm pump, and has wider application range. The main characteristics are as follows: (1) high efficiency and wide efficient area. (2) Can achieve very high discharge pressure, and the flow is irrelevant to the pressure. (3) Has self-absorption capability and can convey liquid and gas mixture.
Although the characteristics of the reciprocating pump are remarkable, the problems are also obvious, and the main aspects are that: 1. the flow and pressure have larger pulsations, especially with single action pumps, due to the acceleration of the piston movement and the discontinuities in the fluid discharge. It is often necessary to provide an air chamber or damper in the discharge line to make the flow relatively uniform, or to improve the flow non-uniformity by employing a double-acting pump and a multi-cylinder pump. 2. The size is big, and the structure is more complicated, and easy wear part is more, needs to have special pump valve, and manufacturing cost and installation expense are all higher.
Disclosure of Invention
The invention aims to solve the technical problem of providing the deflection type R plug pump which has small pulsation, stable operation, double suction and double rows, strong self-absorption capacity and high efficiency.
The technical scheme of the invention is as follows:
a deflection type R plug pump comprises a pump body, wherein an eccentric shaft penetrates through a working cavity of the pump body, two ends of the working cavity of the pump body are respectively provided with a side plate and an end cover in sequence, and two ends of the eccentric shaft respectively penetrate through the side plates and are arranged on the end covers through bearings; the method is characterized in that: the cross section of the working cavity is in a runway shape, a sliding block is arranged in the working cavity in a sliding clearance fit manner, and the outer edge of the sliding block is in a runway shape and forms a working clearance with the inner wall of the working cavity; pressing plates made of wear-resistant materials are respectively embedded in the planes on two sides of the inner wall of the working cavity, and the pressing plates are tightly attached to the planes on two sides of the sliding block;
the center of the sliding block is provided with a runway-shaped mounting hole, the length direction of the mounting hole is mutually perpendicular to the length direction of the working cavity, and the eccentric section of the eccentric shaft penetrates through the mounting hole and is provided with a needle bearing between the mounting hole and the working cavity; when the eccentric shaft rotates for a circle, the eccentric section drives the sliding block to reciprocate in the working cavity for a stroke;
two water inlet channels and two water outlet channels which are communicated with the working cavity are respectively arranged at two ends of the working cavity on the pump body, the two water inlet channels are respectively communicated with a water inlet interface arranged at one side of the pump body, and the two water outlet channels are respectively communicated with a water outlet interface arranged at one side of the pump body; the water inlet channel is internally provided with water inlet check valves respectively, the water outlet channel is internally provided with water outlet check valves respectively, and the opening directions of the water inlet check valves and the water outlet check valves corresponding to the same end of the working cavity are opposite.
As a further preference, a stator sleeve is embedded in the middle of the inner hole of the pump body, and the working cavity is formed by an inner cavity of the stator sleeve.
As a further preference, pressure springs are respectively arranged at the positions of the two sides of the stator sleeve corresponding to the pressing plates and are used for elastically pressing the pressing plates on the planes at the two sides of the sliding block.
As a further preferable mode, unloading holes are axially formed in annular stepped surfaces at two ends of an inner hole of the pump body, corresponding to the water inlet interfaces, and are vertically communicated with the water inlet interfaces and used for unloading the deflection type R plug pump.
As a further preferable mode, a back pressure hole which is vertically communicated with the water outlet port is axially formed in the pump body corresponding to the water outlet channel, annular grooves are respectively formed in the annular inner end faces of the end covers corresponding to the side plates, and the annular grooves are respectively communicated with the back pressure hole through U-shaped back pressure channels formed in the end covers and used for achieving back pressure of the side plates.
As a further preferable mode, sealing rings are respectively embedded at the two ends of the sliding block for realizing the sealing between the two ends of the sliding block and the side plates.
As a further preferable mode, sealing rings are respectively arranged on the inner annular end face of the end cover corresponding to the side plate and positioned in the annular groove and on the outer two sides of the annular groove, and are used for improving the sealing effect between the two ends of the sliding block and the side plate.
As a further preference, the sliding travel of the slider is twice the eccentricity of the eccentric shaft.
As a further preference, the difference between the length of the mounting hole and the outer diameter of the needle bearing is equal to two times the eccentricity of the eccentric shaft.
Further preferably, the pump body has a D-shaped profile.
The beneficial effects of the invention are as follows:
1. because the sliding block is arranged in the working cavity in a sliding clearance fit way, the eccentric section of the eccentric shaft passes through the runway-shaped mounting hole in the center of the sliding block and a needle bearing is arranged between the eccentric section and the runway-shaped mounting hole; therefore, the eccentric shaft drives the needle roller bearing to do cycloid motion in the runway-shaped mounting hole, and the sliding block can be driven to slide back and forth in the working cavity; because the planes on the two sides of the inner wall of the working cavity are respectively provided with the pressing plates and are clung to the planes on the two sides of the sliding block, two water inlet channels and two water outlet channels are respectively arranged on the pump body and positioned at the two ends of the working cavity, and the one-way valves are respectively arranged in the water inlet channels and the water outlet channels, the one-time water suction and discharge process can be realized along with the reciprocating motion of the sliding block once, and the working gaps formed by the sliding block and the inner walls at the two ends of the working cavity alternately work, namely, when the sliding block slides downwards to discharge the water in the working cavity below the sliding block, the working cavity positioned above the sliding block is in a water suction state; the pulsation is small, the operation is stable, double suction and double discharge can be realized, the self suction capacity is strong, the lift is high, and the efficiency is high.
2. The pump slides in the working cavity in a reciprocating manner through the sliding block, so that the working cavities at the two ends of the sliding block are extruded to change the volume, and the working cavities at the two ends of the sliding block alternately absorb and drain water, so that the self-absorption capacity is high, and the water absorption depth can reach more than 7.5 meters.
3. Because the pressing plates made of wear-resistant materials are respectively embedded in the planes on the two sides of the inner wall of the working cavity, the pressing plates are tightly attached to the planes on the two sides of the sliding block; therefore, when the sliding block slides back and forth in the working cavity, the sealing and isolation effects of the working clearances formed by the sliding block and the inner walls of the two ends of the working cavity are good, the volumetric efficiency is high, more than 90% can be achieved, and the energy-saving effect is remarkable.
4. The appearance is small, light in weight. Compared with the traditional water pump with the same power and the same lift, the volume and the weight of the pump are reduced by more than 50 percent. Is convenient for transportation, installation and maintenance and is also convenient for the matched assembly of large-scale equipment.
Drawings
Fig. 1 is a schematic structural view of the present invention.
Fig. 2 is a left side view of fig. 1.
Fig. 3 is a cross-sectional view A-A of fig. 1.
Fig. 4 is a B-B cross-sectional view of fig. 1.
Fig. 5 is a C-C cross-sectional view of fig. 1.
Fig. 6 is a perspective view of the present invention.
Fig. 7 is a schematic view of the structure of the pump body of the present invention.
Fig. 8 is a D-D cross-sectional view of fig. 7.
Fig. 9 is a schematic view of the structure of the end cap of the present invention.
Fig. 10 is a sectional view of E-E of fig. 9.
In the figure: the pump body 1, the water inlet channel 101, the water outlet channel 102, the water inlet interface 103, the water outlet interface 104, the unloading hole 105, the back pressure hole 106, the stator sleeve 2, the working cavity 201, the sliding block 3, the mounting hole 301, the needle bearing 4, the rolling bearing 5, the eccentric shaft 6, the bearing cover 7, the side plate 8, the end cover 9, the annular groove 901, the back pressure channel 902, the pressure spring 10, the pressure plate 11, the jackscrew 12, the sealing ring 13, the water outlet check valve 14, the water outlet check valve cover 15, the water inlet check valve 16, the water inlet check valve cover 17, the sealing plug 18 and the sealing ring 19.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
As shown in fig. 1 to 6, the invention relates to a deflection type R plug pump, which comprises a pump body 1 with a D-shaped appearance, wherein an inner hole of the pump body 1 is in a ladder shape, a stator sleeve 2 is embedded in the middle of the inner hole of the pump body, an inner cavity of the stator sleeve 2 forms a working cavity 201, the cross section of the working cavity 201 is in a track shape, a sliding block 3 is arranged in the working cavity 201 in a sliding clearance fit manner, and the outer edge of the sliding block 3 is in a track shape and forms a working clearance with the inner wall of the working cavity 201.
A track-shaped mounting hole 301 is provided in the center of the slider 3, and the longitudinal direction of the mounting hole 301 is perpendicular to the longitudinal direction of the working chamber 201. An eccentric shaft 6 penetrates through the working cavity 201 of the pump body 1, and an eccentric section of the eccentric shaft 6 penetrates through the mounting hole 301 of the sliding block 3 and is provided with a needle bearing 4 therebetween. The two ends of the working cavity 201 of the pump body 1 are respectively provided with a side plate 8 and an end cover 9 in sequence, and the two ends of the eccentric shaft 6 respectively pass through the central holes of the side plates 8 and are arranged in the central holes of the end covers 9 through the rolling bearings 5. The side plate 8 is equal to the outer diameter of the stator sleeve 2 and clamped between the end cover 9 and the stator sleeve 2 on the same side, and the end cover 9 is connected with the pump body 1 through bolts uniformly distributed on the circumference. The outer sides of the end covers 9 are respectively connected with bearing covers 7 through screws, and one ends of the eccentric shafts 6 penetrate through center holes of the corresponding bearing covers 7 and are used for being connected with a power source to drive the eccentric shafts 6 to rotate.
Sealing rings 13 made of wear-resistant materials are respectively embedded at two ends of the sliding block 3 and are used for realizing the sealing between the two ends of the sliding block 3 and the side plates 8. The sliding stroke of the sliding block 3 is twice the eccentricity of the eccentric shaft 6, and the difference between the length of the mounting hole 301 and the outer diameter of the needle bearing 4 is equal to twice the eccentricity of the eccentric shaft 6, so that the sliding block 3 can be driven to reciprocate in the working cavity 201 by the eccentric section of the eccentric shaft 6 to a stroke when the eccentric shaft 6 rotates for one circle.
On the planes of the stator sleeve 2 on both sides of the inner wall of the working chamber 201, pressing plates 11 are respectively embedded, the pressing plates 11 are made of wear-resistant materials and preferably contain carbon alloy materials, and the pressing plates 11 are closely attached to the planes on both sides of the sliding block 3. Radial holes are respectively arranged on two sides of the stator sleeve 2 corresponding to the pressing plates 11, and pressure springs 10 are embedded in the radial holes and used for elastically pressing the pressing plates 11 on the planes on two sides of the sliding block 3. A jackscrew 12 is arranged at the arc side of the pump body 1 corresponding to the pressure spring 10 and is used for propping against the pressure spring 10.
Two water inlet channels 101 and two water outlet channels 102 which are communicated with the working cavity 201 are respectively arranged at two ends of the working cavity 201 on the pump body 1, the two water inlet channels 101 are respectively communicated with one water inlet interface 103 arranged on one side of the pump body 1, the two water outlet channels 102 are respectively communicated with one water outlet interface 104 arranged on one side of the pump body 1, and the water inlet interface 103 and the water outlet interface 104 are respectively arranged on a plane corresponding to the other side of the circular arc on the pump body 1.
The water inlet channel 101 and the water outlet channel 102 are respectively formed by sequentially and vertically connecting three through holes arranged on the valve body, and the outer port of each through hole corresponding to the water inlet channel 101 and the water outlet channel 102 on the pump body 1 is respectively connected with a sealing plug 18 through threads. A water inlet check valve 16 is inserted into each water inlet channel 101, a water inlet check valve gland 17 is connected to the outer end of a through hole provided with the water inlet check valve 16 through threads, a water outlet check valve 14 is inserted into each water outlet channel 102, and a water outlet check valve gland 15 is connected to the outer end of the through hole provided with the water outlet check valve 14 through threads. The opening directions of the water inlet check valve and the water outlet check valve corresponding to the same end of the working cavity 201 are opposite.
As shown in fig. 7-10, unloading holes 105 are axially formed in annular stepped surfaces at two ends of an inner hole of the pump body 1 and correspond to the water inlet ports 103, the unloading holes 105 are vertically communicated with the water inlet ports 103 and are used for unloading the swing type R plug pump, so that a small part of pressurized water flow enters annular gaps at two ends of the inner hole of the pump body through gaps between the side plates 8 and the stator sleeve 2 and flows back to the water inlet ports 103 through the unloading holes 105; water is prevented from flowing into the needle bearing 4 through the sealing rings 13 between the two ends of the slider 3 and the side plates 8.
The pump body is provided with a back pressure hole 106 which is vertically communicated with the water outlet 104 along the axial direction at the position corresponding to the water outlet channel 102, the annular inner end faces of the end cover 9 corresponding to the side plates 8 are respectively provided with annular grooves 901, and the annular grooves 901 are respectively communicated with the back pressure hole 106 through U-shaped back pressure channels 902 arranged on the end cover 9, so that the back pressure of the side plates 8 is realized, and the sealing performance of the working cavity 201 is improved.
Sealing rings 19 are respectively arranged on the inner end face of the end cover 9, which corresponds to the annular side plate 8, and are positioned on the inner side and the outer side of the annular groove, so as to improve the sealing effect between the two ends of the sliding block 3 and the side plate.
During operation, one end of the eccentric shaft 6 is connected with a power source, and the water inlet port 103 and the water outlet port 104 are respectively connected with a water inlet pipe and a water outlet pipe through connectors. The power source is started to drive the eccentric shaft 6 to rotate, so that the needle bearing 4 performs cycloid motion in the mounting hole 301, and the sliding block is driven to slide back and forth in the working cavity 201; when the sliding block slides downwards, a water inlet one-way valve in a water inlet channel 101 at the lower end of the working cavity is closed, a water outlet one-way valve in a water outlet channel 102 is opened, and water in the working cavity below the sliding block is rapidly discharged through the water outlet channel 102 and the water outlet one-way valve; meanwhile, a water inlet one-way valve in the water inlet channel 101 at the upper end of the working cavity is opened, a water outlet one-way valve in the water outlet channel 102 is closed, and water is sucked into the working cavity above the sliding block through the water inlet channel 101 and the water inlet one-way valve.
When the sliding block slides to the bottom dead center of the working cavity to start sliding upwards, a water inlet one-way valve in a water inlet channel 101 at the lower end of the working cavity is opened, a water outlet one-way valve in a water outlet channel 102 is closed, and water is sucked into the working cavity below the sliding block through the water inlet one-way valve; meanwhile, a water inlet one-way valve in the water inlet channel 101 at the upper end of the working cavity is closed, and a water outlet one-way valve in the water outlet channel 102 is opened, so that water is rapidly discharged through the water outlet one-way valve and the water outlet connector 104. By repeating the steps, the rapid suction and discharge of water flow can be realized.
Although embodiments of the present invention have been disclosed above, it is not limited to the details and embodiments shown and described, it is well suited to various fields of use for which the invention would be readily apparent to those skilled in the art, and accordingly, the invention is not limited to the specific details and illustrations shown and described herein, without departing from the general concepts defined in the claims and their equivalents.
Claims (10)
1. A deflection type R plug pump comprises a pump body, wherein an eccentric shaft penetrates through a working cavity of the pump body, two ends of the working cavity of the pump body are respectively provided with a side plate and an end cover, and two ends of the eccentric shaft respectively penetrate through the side plates and are arranged on the end covers through bearings; the method is characterized in that: the cross section of the working cavity is in a runway shape, a sliding block is arranged in the working cavity in a sliding clearance fit manner, and the outer edge of the sliding block is in a runway shape and forms a working clearance with the inner wall of the working cavity; pressing plates made of wear-resistant materials are respectively embedded in the planes on two sides of the inner wall of the working cavity, and the pressing plates are tightly attached to the planes on two sides of the sliding block;
the center of the sliding block is provided with a runway-shaped mounting hole, the length direction of the mounting hole is mutually perpendicular to the length direction of the working cavity, and the eccentric section of the eccentric shaft penetrates through the mounting hole and is provided with a needle bearing between the mounting hole and the working cavity; when the eccentric shaft rotates for a circle, the eccentric section drives the sliding block to reciprocate in the working cavity for a stroke;
two water inlet channels and two water outlet channels which are communicated with the working cavity are respectively arranged at two ends of the working cavity on the pump body, the two water inlet channels are respectively communicated with a water inlet interface arranged at one side of the pump body, and the two water outlet channels are respectively communicated with a water outlet interface arranged at one side of the pump body; the water inlet channel is internally provided with water inlet check valves respectively, the water outlet channel is internally provided with water outlet check valves respectively, and the opening directions of the water inlet check valves and the water outlet check valves corresponding to the same end of the working cavity are opposite.
2. The pendulum R-plug pump of claim 1, wherein: the middle part of the inner hole of the pump body is embedded with a stator sleeve, and the working cavity is formed by the inner cavity of the stator sleeve.
3. The pendulum R-plug pump of claim 2, wherein: and the two sides of the stator sleeve, which correspond to the pressing plates, are respectively provided with a pressure spring for elastically pressing the pressing plates on the planes at the two sides of the sliding block.
4. The pendulum R-plug pump of claim 1, wherein: and unloading holes are axially formed in annular stepped surfaces at two ends of the inner hole of the pump body, and are vertically communicated with the water inlet interfaces.
5. The pendulum R-plug pump of claim 1 or 4, wherein: the pump body is provided with a back pressure hole which is vertically communicated with the water outlet port along the axial direction at the position corresponding to the water outlet channel, the annular inner end faces of the end covers corresponding to the side plates are respectively provided with annular grooves, and the annular grooves are respectively communicated with the back pressure hole through U-shaped back pressure channels arranged on the end covers.
6. A pendulum R-plug pump according to claim 1 or 3, characterized in that: sealing rings are respectively embedded at two ends of the sliding block.
7. The pendulum R-plug pump of claim 5, wherein: sealing rings are respectively arranged on the inner end face of the end cover, which corresponds to the annular side plate, and are positioned in the annular groove, and the two outer sides of the end cover are respectively provided with sealing rings.
8. The pendulum R-plug pump of claim 6, wherein: the sliding stroke of the sliding block is twice of the eccentric distance of the eccentric shaft.
9. The pendulum R-plug pump of claim 8, wherein: the difference between the length of the mounting hole and the outer diameter of the needle roller bearing is equal to two times of the eccentric distance of the eccentric shaft.
10. The pendulum R-plug pump of claim 5, wherein: the pump body is D-shaped.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811610678.6A CN109441753B (en) | 2018-12-27 | 2018-12-27 | Pendulum type R plug pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811610678.6A CN109441753B (en) | 2018-12-27 | 2018-12-27 | Pendulum type R plug pump |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109441753A CN109441753A (en) | 2019-03-08 |
| CN109441753B true CN109441753B (en) | 2024-02-13 |
Family
ID=65538378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811610678.6A Active CN109441753B (en) | 2018-12-27 | 2018-12-27 | Pendulum type R plug pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109441753B (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985930A (en) * | 2010-09-20 | 2011-03-16 | 余文凌 | Rotor type deep submersible pump |
| CN105781418A (en) * | 2014-12-26 | 2016-07-20 | 中石化胜利石油工程有限公司钻井工艺研究院 | Amplitude-adjustable hydraulic pulse generating device |
| CN107435628A (en) * | 2016-05-25 | 2017-12-05 | 北京星旋世纪科技有限公司 | Location sealing component and apply its tumbler, rotation system and fluid machinery |
| CN209212479U (en) * | 2018-12-27 | 2019-08-06 | 河北盛多威泵业制造有限公司 | Nutation type R plug pump |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20160131026A1 (en) * | 2014-08-10 | 2016-05-12 | Merton W. Pekrul | Multi-injection port rotary engine apparatus and method of use thereof |
-
2018
- 2018-12-27 CN CN201811610678.6A patent/CN109441753B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101985930A (en) * | 2010-09-20 | 2011-03-16 | 余文凌 | Rotor type deep submersible pump |
| CN105781418A (en) * | 2014-12-26 | 2016-07-20 | 中石化胜利石油工程有限公司钻井工艺研究院 | Amplitude-adjustable hydraulic pulse generating device |
| CN107435628A (en) * | 2016-05-25 | 2017-12-05 | 北京星旋世纪科技有限公司 | Location sealing component and apply its tumbler, rotation system and fluid machinery |
| CN209212479U (en) * | 2018-12-27 | 2019-08-06 | 河北盛多威泵业制造有限公司 | Nutation type R plug pump |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109441753A (en) | 2019-03-08 |
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Address after: 050000 building 10, Junding Science Park, 81 Bishui street, shanyincun Town, Luquan District, Shijiazhuang City, Hebei Province Applicant after: Hebei Jiesida Equipment Manufacturing Co.,Ltd. Address before: 050000 building 10, Junding Science Park, 81 Bishui street, shanyincun Town, Luquan District, Shijiazhuang City, Hebei Province Applicant before: HEBEI SENDWE PUMP MANUFACTURING Co.,Ltd. |
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