CN111779669A - Self-suction type water suction pump for low-lying - Google Patents
Self-suction type water suction pump for low-lying Download PDFInfo
- Publication number
- CN111779669A CN111779669A CN202010774583.9A CN202010774583A CN111779669A CN 111779669 A CN111779669 A CN 111779669A CN 202010774583 A CN202010774583 A CN 202010774583A CN 111779669 A CN111779669 A CN 111779669A
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- Prior art keywords
- water
- hole
- holes
- water inlet
- cavity
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Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- 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
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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
- F04B53/10—Valves; Arrangement of valves
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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
- F04B53/16—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
- F04B53/20—Filtering
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a self-suction type water pump for low-lying, which comprises a pump shell and an end cover, wherein a cylinder body is fixed in the pump shell, and a water outlet connector is formed on the end cover; a plurality of raised water suction opening parts are formed at the bottom of the pump shell, and water inlet holes which penetrate through the water suction opening parts up and down are formed on the water suction opening parts; a driving cavity is formed in the cylinder body, a plurality of blind cylinder holes which are uniformly distributed in the circumferential direction are formed in the inner wall of the driving cavity, a piston is sleeved in each blind cylinder hole, and a driving mechanism for driving the pistons to move in a reciprocating mode in the radial direction is arranged in the driving cavity; a water outlet groove hole and a water inlet groove hole are formed at the outer end of the blind cylinder hole, and a water outlet one-way valve is arranged at the upper end of the water outlet groove hole; a water inlet one-way valve is arranged below the water inlet slotted hole. According to the invention, the water suction port is arranged at the bottom of the pump shell, so that the water suction part can be completely immersed in low-lying water, and the pumping-out work of the low-lying water can be completed.
Description
Technical Field
The invention relates to the technical field of water pumps, in particular to a self-suction type water pump for low-lying.
Background
A plurality of rugged small foundation pits are usually arranged on a building site, and the small foundation pits can be filled with water after rain, so that low-lying ponds are formed. When the water pump is required to pump water from the low-lying part, the water pump is placed at the low-lying part and cannot be completely submerged due to the fact that the water level of the low-lying part is low (the water level is lower than ten centimeters), so that part of the water inlet part is exposed on the water surface of the low-lying water, and the suction force generated when the water pump works is communicated with the atmospheric pressure, so that the low-lying water cannot be pumped away; or the water inlet end of some water pumps is higher, and the water pumping-out work of the low-lying position can not be finished.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a self-suction type water pump for low-lying areas.
The scheme for solving the technical problems is as follows:
a self-suction type water pump for low-lying comprises a pump shell, wherein a round cavity with an opening at the upper side is formed in the pump shell, an end cover is fixed on the upper end surface of the round cavity in a sealing mode, a cylinder body is fixed in a cavity defined by the end cover and the round cavity, and a high-pressure water storage cavity is defined by the upper end of the cylinder body, the pump shell and the end cover; a water outlet connector communicated with the high-pressure water storage cavity is formed on the end cover; a plurality of raised water suction openings are formed at the bottom of the pump shell, and water inlet holes which penetrate through the water suction openings vertically are formed on the water suction openings;
the cylinder body is in a round block shape, a driving cavity with an opening at the upper side is formed in the middle of the cylinder body, a plurality of blind cylinder holes which are uniformly distributed circumferentially are formed in the inner wall of the driving cavity, a piston is sleeved in each blind cylinder hole, and a driving mechanism for driving the pistons to move in a reciprocating manner in the radial direction is arranged in the driving cavity;
a water outlet slot hole communicated with the high-pressure water storage cavity is formed in the upper side wall of the outer end of the blind cylinder hole, and a water outlet one-way valve is arranged at the upper end of the water outlet slot hole; and a water inlet groove hole communicated with the corresponding water inlet hole is formed in the lower side wall of the outer end of the blind cylinder hole, and a water inlet one-way valve is arranged in the water inlet hole.
The driving mechanism comprises a plurality of T-shaped push rods which are fixedly connected with the pistons one by one, the outer ends of the T-shaped push rods are pressed against the outer wall of the cam, the cam is fixed on a motor shaft of the motor, and the motor is fixed on the end cover; each T-shaped push rod is inserted in a guide groove of the support part, the support part is fixed at the inner port part of the blind cylinder hole, the support part is fixed with one end of a tension spring, and the other end of the tension spring is fixed on the piston.
A plurality of sinking grooves which are in one-to-one correspondence with the water outlet slotted holes are formed on the upper end surface of the cylinder body, and the water outlet slotted holes are communicated with the outer ends of the sinking grooves;
the water outlet one-way valve comprises a valve plate and a limiting valve plate, wherein the valve plate is inserted and sleeved in the sinking groove, the valve plate is pressed against the lower bottom surface of the sinking groove, and the outer end of the valve plate shields the water outlet groove hole; the limiting valve plate is obliquely arranged in a mode that the outer end is higher than the inner end and the outer end is higher than the sink groove; the inner end of the valve plate and the inner end of the limiting valve plate are fixed at the inner end of the sinking groove through rivets.
A first jack is formed at the lower end of the water inlet slot hole, and a second jack corresponding to the first jack is formed at the upper end of the water inlet hole;
the water inlet one-way valve comprises a valve pipe, two ends of the valve pipe are respectively inserted and sleeved in the first jack and the second jack, a taper hole with a large upper end and a small lower end is formed in the valve pipe, a top ball is sleeved in the taper hole, the upper end of the top ball is pressed on the support ring, and a pressure spring is clamped between the support ring and the bottom surface of the first jack; and a plurality of water through holes are formed in the support ring.
And a plurality of small holes communicated with the water inlet hole are formed in the outer wall of the lower end of the water suction opening part.
And a filter screen is fixed in the water inlet hole.
The outer wall of the middle part of the cylinder body is sleeved with a first sealing ring, and the first sealing ring is pressed against the inner wall of the circular cavity;
a second sealing ring is clamped between the upper end face of the cylinder body and the end cover, and the second sealing ring is located on the outer side of the high-pressure water storage cavity.
A plurality of step through holes are formed in the bottom of the cylinder body, first screws are sleeved in the step through holes, and the lower ends of the first screws are in threaded connection with the bottom surface of the circular cavity;
a plurality of three-stage step holes which are arranged in a large-upper-size-lower-size mode are formed in the end cover, second screws are sleeved in the three-stage step holes, the lower ends of the second screws are connected to the cylinder body in a threaded mode, third sealing rings are sleeved on the outer wall of the middle portion of each second screw in a sleeved mode, and the third sealing rings are pressed in middle holes of the three-stage step holes.
The invention has the following outstanding effects: compared with the prior art, it is through setting up the oral area that absorbs water in the bottom of pump casing, and the portion of absorbing water can submerge in the low-lying aquatic completely to can accomplish the work of taking out from to the low-lying water.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a cross-sectional view of FIG. 1 taken about A-A;
FIG. 3 is a cross-sectional view of FIG. 2 taken about B-B;
FIG. 4 is an enlarged view of a portion of FIG. 1 about C;
fig. 5 is a partial enlarged view of fig. 1 with respect to D.
Detailed Description
In the embodiment, as shown in fig. 1 to 5, a self-priming water pump for low-lying comprises a pump housing 1, wherein a circular cavity 11 with an open upper side is formed on the pump housing 1, an end cover 2 is fixed on the upper end surface of the circular cavity 11 in a sealing manner, a cylinder body 3 is fixed in a cavity enclosed by the end cover 2 and the circular cavity 11, and a high-pressure water storage cavity 100 is enclosed by the upper end of the cylinder body 3, the pump housing 1 and the end cover 2; a water outlet connecting port 21 communicated with the high-pressure water storage cavity 100 is formed on the end cover 2; a plurality of convex water suction opening parts 12 are formed at the bottom of the pump shell 1, and water inlet holes 13 which penetrate through the water suction opening parts 12 up and down are formed on the water suction opening parts 12;
the cylinder body 3 is in a round block shape, a driving cavity 31 with an opening at the upper side is formed in the middle of the cylinder body 3, a plurality of blind cylinder holes 32 which are uniformly distributed at the circumference are formed in the inner wall of the driving cavity 31, a piston 4 is sleeved in each blind cylinder hole 32, and a driving mechanism 5 for driving the piston 4 to move in a reciprocating manner in the radial direction is arranged in the driving cavity 31;
a water outlet slot hole 33 communicated with the high-pressure water storage cavity 100 is formed in the upper side wall of the outer end of the blind cylinder hole 32, and a water outlet one-way valve 6 is arranged at the upper end of the water outlet slot hole 33; and a water inlet slot hole 34 communicated with the corresponding water inlet hole 13 is formed in the lower side wall of the outer end of the blind cylinder hole 33, and a water inlet one-way valve 7 is arranged in the water inlet hole 13.
Furthermore, the driving mechanism 5 comprises a plurality of T-shaped push rods 51 fixedly connected with the pistons 4 one by one, the outer ends of the T-shaped push rods 51 are pressed against the outer wall of the cam 52, the cam 52 is fixed on the motor shaft of the motor 53, and the motor 53 is fixed on the end cover 2; each T-shaped push rod 51 is inserted into the guide groove 541 of the support portion 54, the support portion 54 is fixed to the inner port portion of the blind cylinder hole 32, the support portion 54 is fixed to one end of a tension spring 55, and the other end of the tension spring 55 is fixed to the piston 4.
Furthermore, a plurality of sinking grooves 35 corresponding to the water outlet groove holes 33 one by one are formed on the upper end surface of the cylinder body 3, and the water outlet groove holes 33 are communicated with the outer ends of the sinking grooves 35;
the water outlet one-way valve 6 comprises a valve plate 61 and a limiting valve plate 62 which are inserted in the sinking groove 35, the valve plate 61 is pressed on the lower bottom surface of the sinking groove 35, and the outer end of the valve plate 61 shields the water outlet groove hole 33; the limiting valve plate 62 is obliquely arranged with a high outer part and a low inner part, and the outer end of the limiting valve plate 62 is higher than the sink groove 35; the inner end of the valve plate 61 and the inner end of the limiting valve plate 62 are fixed at the inner end of the sinking groove 35 through rivets 63.
Furthermore, a first insertion hole 36 is formed at the lower end of the water inlet slot 34, and a second insertion hole 14 corresponding to the first insertion hole 36 is formed at the upper end of the water inlet 13;
the water inlet one-way valve 7 comprises a valve pipe 71, two ends of the valve pipe 71 are respectively inserted and sleeved in the first insertion hole 36 and the second insertion hole 14, a taper hole 72 with a large upper end and a small lower end is formed in the valve pipe 71, a top ball 73 is sleeved in the taper hole 72, the upper end of the top ball 73 is pressed on a support ring 74, and a pressure spring 75 is clamped between the support ring 74 and the bottom surface of the first insertion hole 36; the support ring 74 has a plurality of water flow holes 76 formed therein.
More specifically, a plurality of small holes 15 communicated with the water inlet 13 are formed on the outer wall of the lower end of the water inlet 12.
Furthermore, a filter screen 8 is fixed in the water inlet hole 13.
Furthermore, a first sealing ring 91 is sleeved on the outer wall of the middle part of the cylinder body 3, and the first sealing ring 91 is pressed against the inner wall of the circular cavity 11;
a second sealing ring 92 is clamped between the upper end surface of the cylinder 3 and the end cover 11, and the second sealing ring 92 is located outside the high-pressure water storage cavity 100.
Furthermore, a plurality of step through holes are formed at the bottom of the cylinder body 3, first screws 93 are sleeved in the step through holes, and the lower ends of the first screws 93 are screwed on the bottom surface of the circular cavity 11;
a plurality of three-stage stepped holes 22 which are large in top and small in bottom are formed in the end cover 2, second screws 94 are sleeved in the three-stage stepped holes 22, the lower ends of the second screws 94 are in threaded connection with the cylinder body 3, third sealing rings 95 are sleeved on the outer walls of the middle portions of the second screws 94, and the third sealing rings 95 are pressed in middle holes of the three-stage stepped holes 22.
The working principle is as follows: the water pump is placed at a low-lying pond, the water absorbing part 12 is pressed against the bottom of the low-lying pond, and the water outlet connector 21 is connected with an external water outlet pipe;
the motor 53 drives the cam 52 to rotate, the flange part of the cam 52 pushes the T-shaped push rod 51 to move outwards when leaning against the T-shaped push rod 51, the T-shaped push rod 51 drives the piston 4 to move downwards, and when the flange of the cam 52 is separated from the T-shaped push rod 51, the piston automatically moves inwards under the action of the tension spring 55 to reset; when the piston 4 moves inwards, the air pressure in an external cavity formed by the piston 4 and the blind cylinder hole is reduced, the top bead 73 moves upwards to be separated from the taper hole 72, the external cavity formed by the piston 4 and the blind cylinder hole provides suction force for the water inlet, and water in a low-lying position is sucked into the external cavity formed by the piston 4 and the blind cylinder hole from the water inlet; when the piston 4 moves outwards, the piston extrudes water in an external cavity formed by the piston 4 and the blind cylinder hole, the end part of the valve plate 61 close to the water outlet groove 35 is pushed upwards, and the water in the external cavity formed by the piston 4 and the blind cylinder hole enters the high-pressure water cavity 100 from the water outlet groove 35 and is then discharged to the outside from the water outlet connecting port 21 and the water outlet pipe.
Finally, the above embodiments are only for illustrating the present invention and not for limiting the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the scope of the present invention should be defined by the claims.
Claims (8)
1. A self-priming suction pump for low-lying, comprising a pump housing (1), characterized in that: a round cavity (11) with an opening at the upper side is formed in the pump shell (1), an end cover (2) is fixed on the upper end face of the round cavity (11) in a sealing mode, a cylinder body (3) is fixed in a cavity defined by the end cover (2) and the round cavity (11), and a high-pressure water storage cavity (100) is defined by the upper end of the cylinder body (3), the pump shell (1) and the end cover (2); a water outlet connector (21) communicated with the high-pressure water storage cavity (100) is formed on the end cover (2); a plurality of raised water suction opening parts (12) are formed at the bottom of the pump shell (1), and water inlet holes (13) which penetrate through the water suction opening parts (12) up and down are formed on the water suction opening parts;
the cylinder body (3) is in a round block shape, a driving cavity (31) with an opening at the upper side is formed in the middle of the cylinder body (3), a plurality of blind cylinder holes (32) with uniformly distributed circumferences are formed in the inner wall of the driving cavity (31), a piston (4) is sleeved in each blind cylinder hole (32), and a driving mechanism (5) for driving the piston (4) to move in a reciprocating mode in the radial direction is arranged in the driving cavity (31);
a water outlet slotted hole (33) communicated with the high-pressure water storage cavity (100) is formed in the upper side wall of the outer end of the blind cylinder hole (32), and a water outlet one-way valve (6) is arranged at the upper end of the water outlet slotted hole (33); and a water inlet groove hole (34) communicated with the corresponding water inlet hole (13) is formed in the lower side wall of the outer end of the blind cylinder hole (33), and a water inlet one-way valve (7) is arranged in the water inlet hole (13).
2. A self priming pump for depression according to claim 1, wherein: the driving mechanism (5) comprises a plurality of T-shaped push rods (51) which are fixedly connected with the pistons (4) one by one, the outer ends of the T-shaped push rods (51) are pressed against the outer wall of the cam (52), the cam (52) is fixed on a motor shaft of the motor (53), and the motor (53) is fixed on the end cover (2); each T-shaped push rod (51) is inserted in a guide groove (541) of a support part (54), the support part (54) is fixed at the inner port part of the blind cylinder hole (32), the support part (54) is fixed with one end of a tension spring (55), and the other end of the tension spring (55) is fixed on the piston (4).
3. A self priming pump for depression according to claim 1, wherein: a plurality of sinking grooves (35) which correspond to the water outlet slotted holes (33) one by one are formed on the upper end surface of the cylinder body (3), and the water outlet slotted holes (33) are communicated with the outer ends of the sinking grooves (35);
the water outlet one-way valve (6) comprises a valve plate (61) and a limiting valve plate (62) which are inserted and sleeved in the sinking groove (35), the valve plate (61) is pressed against the lower bottom surface of the sinking groove (35), and the outer end of the valve plate (61) shields the water outlet groove hole (33); the limiting valve plate (62) is obliquely arranged in a mode that the outer part is higher than the inner part and the inner part is lower than the outer part, and the outer end of the limiting valve plate (62) is higher than the sinking groove (35); the inner end of the valve plate (61) and the inner end of the limiting valve plate (62) are fixed at the inner end of the sinking groove (35) through rivets (63).
4. A self priming pump for depression according to claim 1, wherein: a first jack (36) is formed at the lower end of the water inlet slotted hole (34), and a second jack (14) corresponding to the first jack (36) is formed at the upper end of the water inlet (13);
the water inlet one-way valve (7) comprises a valve pipe (71) with two ends respectively inserted and sleeved in the first insertion hole (36) and the second insertion hole (14), a taper hole (72) with a large upper end and a small lower end is formed in the valve pipe (71), a top bead (73) is sleeved in the taper hole (72), the upper end of the top bead (73) is pressed on the support ring (74), and a pressure spring (75) is clamped between the support ring (74) and the bottom surface of the first insertion hole (36); the support ring (74) is formed with a plurality of water through holes (76).
5. A self priming pump for depression according to claim 1, wherein: a plurality of small holes (15) communicated with the water inlet hole (13) are formed on the outer wall of the lower end of the water suction opening part (12).
6. A self priming pump for depression according to claim 1, wherein: a filter screen (8) is fixed in the water inlet hole (13).
7. A self priming pump for depression according to claim 1, wherein: a first sealing ring (91) is sleeved on the outer wall of the middle part of the cylinder body (3), and the first sealing ring (91) is pressed against the inner wall of the circular cavity (11);
a second sealing ring (92) is clamped between the upper end face of the cylinder body (3) and the end cover (11), and the second sealing ring (92) is located on the outer side of the high-pressure water storage cavity (100).
8. A self priming pump for depression according to claim 1, wherein: a plurality of step through holes are formed in the bottom of the cylinder body (3), first screws (93) are sleeved in the step through holes, and the lower ends of the first screws (93) are in threaded connection with the bottom surface of the circular cavity (11);
a plurality of three-stage step holes (22) which are large in size and small in size are formed in the end cover (2), second screws (94) are sleeved in the three-stage step holes (22), the lower ends of the second screws (94) are in threaded connection with the cylinder body (3), third sealing rings (95) are sleeved on the outer walls of the middle portions of the second screws (94), and the third sealing rings (95) are pressed in the middle holes of the three-stage step holes (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010774583.9A CN111779669A (en) | 2020-08-04 | 2020-08-04 | Self-suction type water suction pump for low-lying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010774583.9A CN111779669A (en) | 2020-08-04 | 2020-08-04 | Self-suction type water suction pump for low-lying |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111779669A true CN111779669A (en) | 2020-10-16 |
Family
ID=72765734
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010774583.9A Withdrawn CN111779669A (en) | 2020-08-04 | 2020-08-04 | Self-suction type water suction pump for low-lying |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111779669A (en) |
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| US5375982A (en) * | 1991-04-10 | 1994-12-27 | Gentec B.V. | Radial pump |
| JPH094559A (en) * | 1995-05-18 | 1997-01-07 | Luk Automobiltechnik Gmbh & Co Kg | Radial piston pump |
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| JP2003214491A (en) * | 2002-01-23 | 2003-07-30 | Hitachi Unisia Automotive Ltd | Pump device |
| US20130177454A1 (en) * | 2006-06-08 | 2013-07-11 | Larry Alvin Schuetzle | Reciprocating Compressor or Pump and a Portable Tool Powering System Including a Reciprocating Compressor |
| CN104005924A (en) * | 2013-02-25 | 2014-08-27 | 白巨章 | High-power radial plunger pump |
| CN104929885A (en) * | 2015-07-07 | 2015-09-23 | 中国航天科技集团公司烽火机械厂 | Radial plunger pump |
| CN105715473A (en) * | 2016-04-01 | 2016-06-29 | 郑州科技学院 | Multi-cylinder high-pressure radial plunger pump |
| CN106762502A (en) * | 2016-12-28 | 2017-05-31 | 徐州恒佳机械科技有限公司 | A kind of universal plunger displacement pump of profit |
| CN207145158U (en) * | 2017-08-18 | 2018-03-27 | 成都格莱精密仪器有限公司 | A kind of liquid chromatographic system high pressure pump |
| CN110017255A (en) * | 2019-04-25 | 2019-07-16 | 南昌大学 | A kind of novel external curve plunger pump |
| CN110230583A (en) * | 2018-08-06 | 2019-09-13 | 青岛极致创新科技有限公司 | Plunger pump and piston motor |
| CN110630461A (en) * | 2019-09-24 | 2019-12-31 | 邵玉强 | Variable radial plunger pump |
| CN209959409U (en) * | 2019-04-25 | 2020-01-17 | 南昌大学 | Novel outer curve plunger pump |
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2020
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5375982A (en) * | 1991-04-10 | 1994-12-27 | Gentec B.V. | Radial pump |
| TW243488B (en) * | 1991-04-10 | 1995-03-21 | Gentec Bv | |
| JPH094559A (en) * | 1995-05-18 | 1997-01-07 | Luk Automobiltechnik Gmbh & Co Kg | Radial piston pump |
| JPH09303252A (en) * | 1996-05-13 | 1997-11-25 | Nissan Motor Co Ltd | Hydraulic pump device |
| DE19840048A1 (en) * | 1998-09-02 | 2000-03-09 | Continental Teves Ag & Co Ohg | Motor pump unit |
| JP2003214491A (en) * | 2002-01-23 | 2003-07-30 | Hitachi Unisia Automotive Ltd | Pump device |
| US20130177454A1 (en) * | 2006-06-08 | 2013-07-11 | Larry Alvin Schuetzle | Reciprocating Compressor or Pump and a Portable Tool Powering System Including a Reciprocating Compressor |
| CN104005924A (en) * | 2013-02-25 | 2014-08-27 | 白巨章 | High-power radial plunger pump |
| CN104929885A (en) * | 2015-07-07 | 2015-09-23 | 中国航天科技集团公司烽火机械厂 | Radial plunger pump |
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| CN207145158U (en) * | 2017-08-18 | 2018-03-27 | 成都格莱精密仪器有限公司 | A kind of liquid chromatographic system high pressure pump |
| CN110230583A (en) * | 2018-08-06 | 2019-09-13 | 青岛极致创新科技有限公司 | Plunger pump and piston motor |
| CN110017255A (en) * | 2019-04-25 | 2019-07-16 | 南昌大学 | A kind of novel external curve plunger pump |
| CN209959409U (en) * | 2019-04-25 | 2020-01-17 | 南昌大学 | Novel outer curve plunger pump |
| CN110630461A (en) * | 2019-09-24 | 2019-12-31 | 邵玉强 | Variable radial plunger pump |
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Application publication date: 20201016 |
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| WW01 | Invention patent application withdrawn after publication |