CN220705852U - High-tightness precision ceramic metering liquid injection pump - Google Patents
High-tightness precision ceramic metering liquid injection pump Download PDFInfo
- Publication number
- CN220705852U CN220705852U CN202322484224.1U CN202322484224U CN220705852U CN 220705852 U CN220705852 U CN 220705852U CN 202322484224 U CN202322484224 U CN 202322484224U CN 220705852 U CN220705852 U CN 220705852U
- Authority
- CN
- China
- Prior art keywords
- ceramic
- sealing ring
- motor
- oil
- oil inlet
- 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.)
- Active
Links
- 239000000919 ceramic Substances 0.000 title claims abstract description 113
- 238000002347 injection Methods 0.000 title claims abstract description 51
- 239000007924 injection Substances 0.000 title claims abstract description 51
- 239000007788 liquid Substances 0.000 title claims abstract description 34
- 230000006698 induction Effects 0.000 claims abstract description 6
- 238000007789 sealing Methods 0.000 claims description 88
- 210000004907 gland Anatomy 0.000 claims description 8
- 238000001802 infusion Methods 0.000 claims description 8
- 230000000149 penetrating effect Effects 0.000 claims description 5
- 230000008878 coupling Effects 0.000 claims description 4
- 238000010168 coupling process Methods 0.000 claims description 4
- 238000005859 coupling reaction Methods 0.000 claims description 4
- 230000000007 visual effect Effects 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 12
- 230000000694 effects Effects 0.000 abstract description 8
- 238000005086 pumping Methods 0.000 abstract description 4
- 230000009471 action Effects 0.000 abstract description 2
- 230000006872 improvement Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 2
- 238000005259 measurement Methods 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 230000004044 response Effects 0.000 description 2
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
Landscapes
- Details Of Reciprocating Pumps (AREA)
Abstract
The utility model relates to a high-tightness precise ceramic metering injection pump, which comprises an injection pump with a bottom plate, wherein a motor is arranged at the side end of the injection pump, the output end of the motor is connected with the injection pump, the adoption of the metering injection structure can connect the motor with a driving screw rod through a coupler when the metering injection pump is required to be used for injecting liquid into a product, a sliding block moves forwards and backwards to connect the driving screw rod with a ceramic plunger rod, at the moment, the motor is started, the ceramic plunger rod is driven to move back and forth in a sealed liquid cylinder body under the forward and backward rotation action of the motor, the functions of oil pumping and oil injection precise control are realized, the function of returning to an original point is realized through the induction between the forward and backward moving sliding block and an original point induction switch, the structure reliability and durability of the ceramic metering injection pump are effectively realized, the universality is strong, the operation is convenient, the production efficiency is high, and the production effect is greatly reduced.
Description
Technical Field
The utility model relates to a high-tightness precise ceramic metering injection pump, in particular to a high-tightness precise ceramic metering injection pump applied to the technical field of ceramic injection pumps.
Background
As is well known, with the development of science and technology, various new products are layered endlessly, and thus the process and requirements for the injection of liquid of some products are more and more diversified, for example, the injection of liquid is required to have low viscosity, and meanwhile, the precision of the injection is required to be higher, and the stability of the injection system is required to be higher, so that the common pneumatic system equipment is difficult to meet the requirements.
In order to solve the problems of liquid injection precision and stability, a certain metering liquid injection pump in the market adopts a ceramic design and has a certain market occupation ratio.
The existing ceramic metering liquid injection pump is simple in structure, not durable enough, not stable enough in operation complex performance, low in production efficiency and greatly increased in production and processing cost.
Disclosure of Invention
Aiming at the prior art, the technical problems to be solved by the utility model are that the ceramic metering liquid injection pump is simple in structure and not durable enough, the operation complexity is not stable enough, the production efficiency is low, and the production and processing cost is greatly increased.
In order to solve the problems, the utility model provides a high-tightness precise ceramic metering injection pump which comprises an injection pump with a bottom plate, wherein a motor is arranged at the side end of the injection pump, the output end of the motor is connected with the injection pump, a visual window is cut at the position, close to the motor, of the top end of the injection pump, an oil inlet one-way valve assembly is fixedly connected under the right side of the injection pump, an oil outlet one-way valve assembly is fixedly connected at the symmetrical position of the top end of the injection pump and the oil inlet one-way valve assembly, a motor mounting seat is fixedly connected in the injection pump, the motor is fixedly connected with the motor mounting seat, one end, far away from the motor, of the motor is fixedly connected with a screw rod fixing seat, the motor is rotationally connected with a driving screw rod through a coupler, a screw rod nut is sleeved on the driving screw rod, a liquid cylinder is fixedly connected with the top end of the bottom plate, an oil inlet one-way valve assembly and the oil outlet one-way valve assembly are symmetrically cut at the upper end and lower end of the liquid cylinder, a ceramic plunger rod extending into the liquid cylinder body is fixedly connected with a front and back moving slide block through a ceramic end sealing ring assembly, the ceramic plunger rod is fixedly connected with a guide runner, the front and back moving slide block is fixedly connected with the screw rod nut through a ceramic fixing ring and a slide penetrating shaft, the guide runner is fixedly connected with an induction runner, and is fixedly connected with an origin.
In the ceramic metering injection pump, the structure of the ceramic metering injection pump is reliable and durable, the universality is strong, the operation is convenient, the performance is stable, the production efficiency is high, and the production effect is greatly reduced.
As a further improvement of the application, the oil inlet check valve assembly comprises an oil inlet plug rod, an oil inlet tightening nut is arranged on the oil inlet plug rod through an oil inlet plug rod sealing ring sleeve, an oil inlet adapter seat is detachably connected with the oil inlet plug rod on one side of the oil inlet plug rod sealing ring, and an oil inlet adapter seat sealing ring is fixedly connected in the oil inlet adapter seat.
As still further improvement of this application, oil inlet adapter is kept away from oil feed cock stem sealing washer one end and can is dismantled and be connected with the oil inlet case, and the cover is equipped with the oil inlet spring on the oil inlet case, and oil inlet case is kept away from drive lead screw one end fixedly connected with oil feed case sealing washer, and oil feed case sealing washer and oil feed adapter sealing washer laminating mutually.
As a further improvement of the application, the oil outlet one-way valve assembly comprises an oil outlet valve core, an oil outlet valve core sealing ring is sleeved on the oil outlet valve core, an oil outlet spring is sleeved on the oil outlet valve core at the side end of the oil outlet valve core sealing ring, one end of the oil outlet valve core, which is positioned at the oil outlet spring, is detachably connected with an oil outlet adapter through an oil outlet adapter sealing ring, an oil outlet plug rod is detachably connected in the oil outlet adapter, an oil outlet plug rod sealing ring is sleeved on the oil outlet plug rod, and the oil outlet plug rod penetrates through the oil outlet plug rod sealing ring to rotate and is connected with an oil outlet tightening nut.
As a further improvement of the application, the ceramic end sealing ring assembly comprises a ceramic plunger rod, a ceramic supporting seat is sleeved on the bottom plate, and a ceramic rear end sealing ring is sleeved between the ceramic plunger rod and the ceramic supporting seat.
As a further improvement of the present application, the ceramic plunger rod is provided with a ceramic front end sealing ring far away from one end of the ceramic rear end sealing ring, and a ceramic supporting seat sealing ring is sleeved on one end of the ceramic plunger rod close to the ceramic front end sealing ring, the ceramic plunger rod is provided with a sealing ring gland far away from one end of the ceramic front end sealing ring, and the sealing ring gland penetrates through the ceramic plunger rod to press the ceramic rear end sealing ring on the ceramic supporting seat.
To sum up, this scheme can realize, when the need uses the measurement injection pump to carry out liquid injection to the product, accessible shaft coupling links together motor and drive lead screw, back-and-forth movement slider links together drive lead screw and ceramic plunger rod, at this moment open the motor, under the positive and negative rotatory effect of motor, drive ceramic plunger rod in sealed liquid cylinder body the inside round trip movement, the function of pumping oil and the accurate control of oiling has been realized, the function of returning the origin has been realized to the response between rethread back-and-forth movement slider and origin inductive switch, reach effectively that the structure that makes ceramic measurement injection pump is reliable durable, the commonality is strong, convenient operation and stable performance, make production efficiency high, greatly reduced the effect of production.
Drawings
FIG. 1 is a schematic side view of a ceramic metering injection pump according to a first embodiment of the present application;
FIG. 2 is a schematic diagram of the internal structure of a ceramic metering infusion pump according to a first embodiment of the present application;
FIG. 3 is a schematic diagram of a ceramic metering infusion pump inlet check valve assembly according to a first embodiment of the present application;
FIG. 4 is a schematic diagram of a ceramic metering pump outlet check valve assembly according to a first embodiment of the present application;
fig. 5 is a schematic view of a ceramic end seal ring assembly of an embodiment of a ceramic metering infusion pump of the present application.
The reference numerals in the figures illustrate:
1. a liquid injection pump; 2. a visual window; 3. a motor; 4. an oil inlet one-way valve assembly; 5. an oil outlet one-way valve assembly; 6. a coupling; 7. a motor mounting seat; 8. an origin induction switch; 9. a bottom plate; 10. a ceramic fixing ring; 11. a guide chute; 12. a liquid cylinder; 13. a ceramic end seal ring assembly; 14. a sliding insertion shaft; 15. moving the slider back and forth; 16. driving a screw rod; 17. a screw nut; 18. a screw rod fixing seat; 19. an oil inlet plug rod; 20. the nut is screwed tightly at the oil inlet; 21. an oil inlet plug rod sealing ring; 22. an oil inlet adapter; 23. an oil inlet adapter sealing ring; 24. an oil inlet valve core sealing ring; 25. an oil inlet valve core; 26. an oil inlet spring; 27. an oil outlet valve core; 28. an oil outlet valve core sealing ring; 29. an oil outlet spring; 30. an oil outlet adapter sealing ring; 31. an oil outlet adapter; 32. an oil outlet plug rod; 33. an oil outlet plug rod sealing ring; 34. the nut is screwed tightly at the oil outlet; 35. a ceramic front end sealing ring; 36. a ceramic supporting seat sealing ring; 37. a ceramic support base; 38. a ceramic rear end sealing ring; 39. a ceramic plunger rod; 40. and (5) sealing ring gland.
Detailed Description
Two embodiments of the present application are described in detail below with reference to the accompanying drawings.
First embodiment:
1-5 show a high-tightness precision ceramic metering injection pump, which comprises an injection pump 1 with a bottom plate 9, wherein a motor 3 is arranged at the side end of the injection pump 1, the output end of the motor 3 is connected with the injection pump 1, a visual window 2 is cut at the position, close to the motor 3, of the top end of the injection pump 1, an oil inlet one-way valve assembly 4 is fixedly connected under the right side of the injection pump 1, an oil outlet one-way valve assembly 5 is fixedly connected at the symmetrical position of the top end of the injection pump 1 and the oil inlet one-way valve assembly 4, a motor mounting seat 7 is fixedly connected in the injection pump 1, the motor 3 is fixedly connected with the motor mounting seat 7, a screw rod fixing seat 18 is fixedly connected at the end, far away from the motor 3, of the motor 3 is rotatably connected with a driving screw rod 16 through a coupler 6, a screw rod nut 17 is sleeved on the driving screw rod 16, the bottom plate 9 is fixedly connected with a liquid cylinder body 12 on the top end of one side of the motor 3, an oil inlet one-way valve assembly 4 and an oil outlet one-way valve assembly 5 are symmetrically cut at the upper end and the lower end of the liquid cylinder body 12, a ceramic plunger rod 39 extending into the liquid cylinder body 12 is installed at one end of the liquid cylinder body 12 close to a driving screw rod 16 through a ceramic end sealing ring assembly 13, a front-back moving slide block 15 is fixedly connected to the ceramic plunger rod 39 through a ceramic fixing ring 10 and a sliding penetrating shaft 14, the front-back moving slide block 15 is fixedly connected with a screw nut 17, a guide chute 11 is fixedly connected to the bottom plate 9 which is positioned under the ceramic fixing ring 10, the guide chute 11 is in sliding connection with the sliding penetrating shaft 14, and an origin induction switch 8 is fixedly connected to the bottom plate 9.
This scheme can be realized, when the needs use the metering injection pump 1 to carry out liquid injection to the product, accessible shaft coupling 6 links together motor 3 and drive lead screw 16, back-and-forth movement slider 15 links together drive lead screw 16 and ceramic plunger rod 39, at this moment open motor 3, under the rotatory effect of the positive and negative rotation of motor 3, drive ceramic plunger rod 39 in sealed liquid cylinder body 12 the back-and-forth movement, the function of oil pumping and oiling accurate control has been realized, the function of returning the original point has been realized in the response between rethread back-and-forth movement slider 15 and origin inductive switch 8, reach effectively that the structure that makes ceramic metering injection pump is reliable durable, the commonality is strong, convenient operation and stable performance, make production efficiency high, greatly reduced the effect of production.
Second embodiment:
fig. 3-5 show that the oil inlet check valve assembly 4 comprises an oil inlet plug rod 19, an oil inlet tightening nut 20 is sleeved on the oil inlet plug rod 19 through an oil inlet plug rod sealing ring 21, an oil inlet adapter 22 is detachably connected with the oil inlet plug rod 19 positioned at one side of the oil inlet plug rod sealing ring 21, an oil inlet adapter sealing ring 23 is fixedly connected in the oil inlet adapter 22, an oil inlet valve core 25 is detachably connected with one end of the oil inlet adapter 22 away from the oil inlet plug rod sealing ring 21, an oil inlet spring 26 is sleeved on the oil inlet valve core 25, an oil inlet valve core 24 is fixedly connected with one end of the oil inlet valve core 25 away from the driving screw 16, the oil inlet valve core sealing ring 24 is jointed with the oil inlet adapter sealing ring 23, the oil outlet check valve assembly 5 comprises an oil outlet valve core 27, an oil outlet valve core sealing ring 28 is sleeved on the oil outlet valve core 27, an oil outlet spring 29 is sleeved on the oil outlet valve core 27 positioned at the side end of the oil outlet valve core sealing ring 28, one end of the oil outlet valve core 27 positioned at the oil outlet spring 29 is detachably connected with an oil outlet adapter seat 31 through an oil outlet adapter seat sealing ring 30, an oil outlet plug rod 32 is detachably connected in the oil outlet adapter seat 31, an oil outlet plug rod sealing ring 33 is sleeved on the oil outlet plug rod 32, the oil outlet plug rod 32 penetrates through the oil outlet plug rod sealing ring 33 to be rotationally connected with an oil outlet tightening nut 34, the ceramic end sealing ring assembly 13 comprises a ceramic plunger rod 39, a ceramic supporting seat 37 is sleeved on the bottom plate 9, a ceramic rear end sealing ring 38 is sleeved between the ceramic plunger rod 39 and the ceramic supporting seat 37, a ceramic front end sealing ring 35 is sleeved on one end of the ceramic plunger rod 39, which is far away from the ceramic rear end sealing ring 38, a ceramic supporting seat sealing ring 36 is sleeved on one end of the ceramic plunger rod 39, which is close to the ceramic front end sealing ring 35, a sealing ring gland 40 is sleeved on one end of the ceramic plunger rod 39, which is far away from the ceramic front end sealing ring 35, and the sealing ring gland 40 penetrates through the ceramic plunger rod 39 to press the ceramic rear end sealing ring 38 on the ceramic supporting seat 37.
The scheme can be realized, and the oil inlet plug rod 19 is provided with the oil inlet plug rod sealing ring 21 and then plugged into the oil inlet adapter seat 22 to realize the sealing effect; after the oil inlet valve core sealing ring 24 is arranged on the clamping groove of the oil inlet valve core 25, the oil inlet adapter 22 and the oil inlet valve core 25 are sealed under the pressure of the oil inlet spring 26, the oil inlet valve core 25 is opened under the thrust of liquid, the oil outlet valve core sealing ring 28 is arranged in the clamping groove of the oil outlet valve core 27, the oil outlet valve core 27 is pressed on the liquid cylinder body 12 by the oil outlet spring 29 to realize sealing, and the valve is opened under the thrust of liquid; the oil outlet plug rod sealing ring 33 is arranged in a clamping groove on the oil outlet plug rod 32, the oil outlet plug rod 32 is pressed into the oil outlet adapter seat 31 under the action of rotary compression of the oil outlet tightening nut 34, the ceramic front end sealing ring 35 and the ceramic rear end sealing ring 38 penetrate through the ceramic plunger rod 39 and then are respectively pressed into inner holes at two ends of the ceramic support seat 37, the ceramic rear end sealing ring 38 is compressed by the sealing ring gland 40, and the whole assembly is locked and covered on the liquid cylinder body 12, so that the front-back movement of higher tightness of the ceramic plunger rod 39 is realized. The alternating opening and closing of the oil way are effectively realized through the oil inlet check valve and the oil outlet check valve, the reciprocating motion is realized through the control motor 3 driving the precise ceramic plunger rod 39, and the precise control effect of oil pumping and oil injection is realized.
The scope of protection of the above-described embodiments employed in the present application is not limited to the above-described embodiments, and various changes made by those skilled in the art without departing from the spirit of the present application are still within the scope of protection of the present utility model.
Claims (6)
1. High-tightness precise ceramic metering liquid injection pump comprises a liquid injection pump (1) with a bottom plate (9), and is characterized in that: the utility model discloses a liquid injection pump, including motor (3), motor (3) output and motor (1) are connected, the motor (3) top is close to motor (3) department and is excavated there is visual window (2), fixedly connected with oil inlet check valve subassembly (4) under the motor (1) right side, be located oil inlet check valve subassembly (4) symmetry department fixedly connected with oil-out check valve subassembly (5) on the motor (1) top, fixedly connected with motor mount pad (7) in the motor (1), and motor (3) and motor mount pad (7) fixed connection, motor mount pad (7) are kept away from motor (3) one end fixedly connected with lead screw fixing base (18), motor (3) are connected with drive lead screw (16) through shaft coupling (6) rotation, the cover is equipped with lead screw nut (17) on drive lead screw (16), bottom plate (9) and motor (3) one side top fixedly connected with liquid cylinder body (12), symmetrically excavate check valve subassembly (4), oil inlet check valve subassembly (5) on the upper and lower extreme of liquid cylinder body (12), the ceramic plunger rod (39) extending into the liquid cylinder body (12) is installed at one end of the liquid cylinder body (12) close to the driving screw rod (16) through the ceramic end sealing ring assembly (13), the ceramic plunger rod (39) is fixedly connected with a front-back moving sliding block (15) through a ceramic fixing ring (10) and a sliding penetrating shaft (14), the front-back moving sliding block (15) is fixedly connected with a screw nut (17), a guide chute (11) is fixedly connected to the bottom plate (9) right below the ceramic fixing ring (10), the guide chute (11) is in sliding connection with the sliding penetrating shaft (14), and an origin induction switch (8) is fixedly connected to the bottom plate (9).
2. The high-tightness precision ceramic metering infusion pump according to claim 1, wherein: the oil inlet check valve assembly (4) comprises an oil inlet plug rod (19), an oil inlet tightening nut (20) is sleeved on the oil inlet plug rod (19) through an oil inlet plug rod sealing ring (21), an oil inlet adapter seat (22) is detachably connected with the oil inlet plug rod (19) on one side of the oil inlet plug rod sealing ring (21), and an oil inlet adapter seat sealing ring (23) is fixedly connected in the oil inlet adapter seat (22).
3. The high-tightness precision ceramic metering infusion pump according to claim 2, wherein: the oil inlet adapter (22) is kept away from oil feed cock stem sealing washer (21) one end and can is dismantled and be connected with oil inlet case (25), the cover is equipped with oil inlet spring (26) on oil inlet case (25), oil inlet case (25) are kept away from drive lead screw (16) one end fixedly connected with oil feed case sealing washer (24), and oil feed case sealing washer (24) are laminated with oil feed adapter sealing washer (23).
4. The high-tightness precision ceramic metering infusion pump according to claim 1, wherein: the oil outlet check valve assembly (5) comprises an oil outlet valve core (27), an oil outlet valve core sealing ring (28) is sleeved on the oil outlet valve core (27), an oil outlet spring (29) is sleeved on the oil outlet valve core (27) at the side end of the oil outlet valve core sealing ring (28), an oil outlet adapter (31) is detachably connected to one end of the oil outlet valve core (27) through an oil outlet adapter sealing ring (30), an oil outlet plug rod (32) is detachably connected in the oil outlet adapter (31), an oil outlet plug rod sealing ring (33) is sleeved on the oil outlet plug rod (32), and the oil outlet plug rod (32) penetrates through the oil outlet plug rod sealing ring (33) to be rotationally connected with an oil outlet tightening nut (34).
5. The high-tightness precision ceramic metering infusion pump according to claim 1, wherein: the ceramic end sealing ring assembly (13) comprises a ceramic plunger rod (39), a ceramic supporting seat (37) is sleeved on the bottom plate (9), and a ceramic rear end sealing ring (38) is sleeved between the ceramic plunger rod (39) and the ceramic supporting seat (37).
6. The high-tightness precision ceramic metering infusion pump according to claim 5, wherein: ceramic front end sealing ring (35) is sleeved at one end of ceramic plunger rod (39) far away from ceramic rear end sealing ring (38), ceramic supporting seat sealing ring (36) is sleeved at one end of ceramic plunger rod (39) close to ceramic front end sealing ring (35), sealing ring gland (40) is sleeved at one end of ceramic plunger rod (39) far away from ceramic front end sealing ring (35), and sealing ring gland (40) penetrates ceramic plunger rod (39) to press ceramic rear end sealing ring (38) on ceramic supporting seat (37).
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322484224.1U CN220705852U (en) | 2023-09-13 | 2023-09-13 | High-tightness precision ceramic metering liquid injection pump |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN202322484224.1U CN220705852U (en) | 2023-09-13 | 2023-09-13 | High-tightness precision ceramic metering liquid injection pump |
Publications (1)
Publication Number | Publication Date |
---|---|
CN220705852U true CN220705852U (en) | 2024-04-02 |
Family
ID=90441595
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CN202322484224.1U Active CN220705852U (en) | 2023-09-13 | 2023-09-13 | High-tightness precision ceramic metering liquid injection pump |
Country Status (1)
Country | Link |
---|---|
CN (1) | CN220705852U (en) |
-
2023
- 2023-09-13 CN CN202322484224.1U patent/CN220705852U/en active Active
Similar Documents
Publication | Publication Date | Title |
---|---|---|
CN110748446A (en) | Common rail high-pressure oil inlet and outlet valve assembly and common rail high-pressure oil supply pump | |
US3372648A (en) | Pump | |
US3023710A (en) | Fluid pumps | |
CN216642439U (en) | High-pressure reciprocating pump with multi-cylinder structure | |
CN220705852U (en) | High-tightness precision ceramic metering liquid injection pump | |
CN208502967U (en) | A kind of quantitative plunger pump | |
CN110185598A (en) | Booster pump built in a kind of automobile-used cryogenic natural gas bottle | |
CN210343889U (en) | Supercharging device for hydraulic cylinder | |
CN205277772U (en) | Plunger diaphragm type measuring pump | |
CN117386604A (en) | Small-flow double-outlet electromagnetic plunger pump | |
CN103993999A (en) | High-pressure oil pump for heavy-duty diesel engine | |
CN201884236U (en) | Piston type metering pump | |
CN216554357U (en) | Reciprocating pump high-pressure cylinder structure with good sealing performance | |
CN114576058B (en) | Oil pump for automobile | |
CN109695566A (en) | A kind of sealing lubrication structure of plunger pump | |
WO2005008060A3 (en) | On/off switch for liquid additive injection pump | |
CN203925844U (en) | A kind of large diesel engine high pressure oil pump | |
CN205260297U (en) | Hydraulic pressure booster pump | |
CN210948964U (en) | Common rail high-pressure oil inlet and outlet valve assembly and common rail high-pressure oil supply pump | |
CN220280398U (en) | Silica gel mill base booster pump | |
GB1506669A (en) | Positive displacement metering pump | |
CN213332363U (en) | Double-sealing piston device for diversion pool | |
CN210949014U (en) | Corrosion-resistant high-pressure pump for injecting oil-soluble chemical agent | |
CN220566171U (en) | Electric control unit pump | |
CN208281130U (en) | A kind of difunctional plunger pump of single cylinder |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
GR01 | Patent grant | ||
GR01 | Patent grant |