CN111306102B - Engine cooling water pump convenient to control inlet and outlet flow - Google Patents
Engine cooling water pump convenient to control inlet and outlet flow Download PDFInfo
- Publication number
- CN111306102B CN111306102B CN201911317317.7A CN201911317317A CN111306102B CN 111306102 B CN111306102 B CN 111306102B CN 201911317317 A CN201911317317 A CN 201911317317A CN 111306102 B CN111306102 B CN 111306102B
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- Prior art keywords
- pump body
- pump
- groups
- fixed
- limiting
- 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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- 239000000498 cooling water Substances 0.000 title claims abstract description 20
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 238000000926 separation method Methods 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims description 31
- 238000002955 isolation Methods 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 5
- 230000008676 import Effects 0.000 claims 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 19
- 238000009434 installation Methods 0.000 abstract description 2
- 239000000110 cooling liquid Substances 0.000 description 11
- 238000001816 cooling Methods 0.000 description 4
- 230000008878 coupling Effects 0.000 description 3
- 238000010168 coupling process Methods 0.000 description 3
- 238000005859 coupling reaction Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding 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
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01P—COOLING OF MACHINES OR ENGINES IN GENERAL; COOLING OF INTERNAL-COMBUSTION ENGINES
- F01P5/00—Pumping cooling-air or liquid coolants
- F01P5/10—Pumping liquid coolant; Arrangements of coolant pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D15/00—Control, e.g. regulation, of pumps, pumping installations or systems
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/426—Casings; Connections of working fluid for radial or helico-centrifugal pumps especially adapted for liquid pumps
- F04D29/4293—Details of fluid inlet or outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/60—Mounting; Assembling; Disassembling
- F04D29/62—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps
- F04D29/628—Mounting; Assembling; Disassembling of radial or helico-centrifugal pumps especially adapted for liquid pumps
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention relates to the technical field of water pump related equipment, in particular to an engine cooling water pump convenient for controlling inlet and outlet flow, which comprises a pump body, a transmission block impeller and a pump cover, wherein two groups of baffle plates are welded in the pump body, two groups of limiting blocks are arranged on one side of the baffle plates, corresponding to the baffle plates, the limiting blocks are fixed on the inner wall of the pump body, two groups of first springs are fixed on the side surfaces of the baffle plates, and a separation plate is slidably arranged on the limiting blocks; the outer sides of the two groups of limiting rods are provided with fixing frames, and a limiting rod sleeve is fixed on a central axis of one side of the fixing frames, which is close to the pump body; the fixing frame is used through the cooperation of gag lever post cover and gag lever post, makes simultaneously with the help of the second spring and carries out horizontal slip between fixing frame and the pump body, adjusts the distance between fixing frame and the pump body, makes the fixing frame install at the installing port edge, passes the upper water outlet edge of through-hole connection at the engine through with the bolt, accomplishes the installation to the device.
Description
Technical Field
The invention relates to an engine cooling water pump convenient for controlling inlet and outlet flow, and belongs to the technical field of water pumps.
Background
A large water circulation system is formed by connecting a plurality of water channels for cooling water circulation in a cylinder body of an automobile engine with a water tank arranged at the front part of the automobile through a water pipe, a cooling water pump is positioned at an upper water outlet of the engine, and the engine is driven by a belt pulley to pump hot water in the water channel of the cylinder body of the engine and pump cold water.
The engine drives the water pump bearing and the impeller to rotate through the belt pulley, the cooling liquid in the water pump is driven by the impeller to rotate together, and is thrown to the edge of the water pump shell under the action of centrifugal force, and meanwhile, certain pressure is generated, and then the cooling liquid flows out from the water outlet channel or the water pipe.
The existing cooling water pump has the following defects:
1. the unit flow of the cooling liquid is inconvenient to regulate and control;
2. The cooling water pump can only be correspondingly installed on one vehicle type, and the application range is small.
Disclosure of Invention
The invention aims to solve the technical problem of providing an engine cooling water pump convenient for controlling inlet and outlet flow aiming at the defects of the prior art.
The technical scheme provided by the invention for solving the technical problems is as follows: the utility model provides an engine cooling water pump convenient to control exit flow, including the pump body, drive block impeller and pump cover, the inside welding of the pump body has two sets of baffles, one side of corresponding baffle is provided with two sets of limit blocks, the stopper is fixed on the inner wall of the pump body, the side of baffle is fixed with two sets of first springs, the one end that the first spring kept away from the baffle is fixed with the slide, the side one end that the slide kept away from the baffle is fixed with the division board, division board slidable mounting is on the stopper, be provided with feed liquor pipe, drain pipe on the pump body, the side of feed liquor pipe and drain pipe is provided with the division board;
the outer sides of the pump body are symmetrically provided with limiting rods, the outer sides of the two groups of limiting rods are provided with fixing frames, limiting rod sleeves are fixed on the central axis of one side of each fixing frame, which is close to the pump body, one end of each limiting rod is movably arranged in each limiting rod sleeve, and two groups of second springs are arranged between each fixing frame and the pump body;
The one end central point of drive piece puts and is fixed with the connecting rod, and the link is installed through the bolt to the side of the pump body, and the central point of link is fixed with self-lubricating bearing, and self-lubricating bearing runs through the inside that sets up at the pump body, and sealed pad is installed to the inside bottom surface of the pump body, and the connecting rod runs through self-lubricating bearing and sealed inside of installing at the pump body that fills up, and the impeller is installed to the one end of connecting rod, installs coupling nut on the connecting rod, and coupling nut's side is provided with the impeller, and the pump cover is installed through the bolt in the outside of the pump body.
As the engine cooling water pump convenient for controlling the inlet and outlet flow, the invention is preferable, the pump body and the baffle are of an integrated structure, and the baffle forms a telescopic mechanism through the first spring and the sliding plate.
As the engine cooling water pump convenient for controlling the inlet and outlet flow, the invention is preferable, the sliding plate and the isolation plate are of an integrated structure, and the isolation plate forms a sliding structure between the limiting block and the pump body.
As the engine cooling water pump convenient for controlling the inlet and outlet flow, the inlet pipe and the outlet pipe are preferably arranged symmetrically relative to the center of the pump body, and the opening area of the inlet pipe and the outlet pipe in the pump body is smaller than the area of the isolation plate.
As the engine cooling water pump convenient for controlling the inlet and outlet flow, the invention is preferable, two groups of through holes are arranged on the fixing frame, and the fixing frame forms a telescopic mechanism with the pump body through the second spring.
As the engine cooling water pump convenient for controlling the inlet and outlet flow, the fixing frame is preferably arranged to form a sliding structure with the pump body through the limit rod sleeve and the limit rod.
The beneficial effects of the technical scheme adopted by the invention are as follows:
1. When the engine runs at a high speed, the impeller is driven to rotate at a high speed through the transmission block, so that when the impeller rotates, larger centrifugal force is generated, the cooling liquid is further rotated, the elasticity of the first spring is overcome, the sliding plate is pushed to move, the sliding plate slides on the pump body through the limiting block by means of the isolating plate, the position of the isolating plate is changed, and then the inlet and the outlet of the liquid inlet pipe and the liquid outlet pipe are enlarged by connecting the pump body, so that the flow of the cooling liquid is increased, and the purpose of accelerating the cooling of the engine is achieved.
2. The mount is through the cooperation use of gag lever post cover and gag lever post, makes simultaneously with the help of the second spring and carries out horizontal slip between mount and the pump body, according to the size of installing port, adjusts the distance between mount and the pump body, makes the mount install at the installing port edge, passes the upper water outlet edge of through-hole connection at the engine through with the bolt, accomplishes the installation to the device.
Drawings
The invention is further described below with reference to the accompanying drawings:
FIG. 1 is a schematic view of the internal structure of the present invention;
FIG. 2 is an exploded view of the present invention;
fig. 3 is a schematic view of a partial enlarged structure at a in fig. 1 according to the present invention.
In the figure: 1. a pump body; 2. a baffle; 3. a limiting block; 4. a first spring; 5. a slide plate; 6. a partition plate; 7. a liquid inlet pipe; 8. a liquid outlet pipe; 9. a limit rod; 10. a fixing frame; 11. a limit rod sleeve; 12. a second spring; 13. a transmission block; 14. a connecting rod; 15. a connecting frame; 16. self-lubricating bearings; 17. a sealing gasket; 18. an impeller; 19. a coupling nut; 20. and a pump cover.
Detailed Description
Examples
The engine cooling water pump convenient for controlling inlet and outlet flow comprises a pump body 1, a transmission block 13 impeller 18 and a pump cover 20, wherein two groups of baffle plates 2 are welded in the pump body 1, two groups of limiting blocks 3 are arranged on one side of the corresponding baffle plates 2, the limiting blocks 3 are fixed on the inner wall of the pump body 1, two groups of first springs 4 are fixed on the side surfaces of the baffle plates 2, a sliding plate 5 is fixed at one end, far away from the baffle plates 2, of each first spring 4, a separation plate 6 is fixed at one end, far away from the baffle plates 2, of each sliding plate 5, the separation plates 6 are slidably mounted on the limiting blocks 3, a liquid inlet pipe 7 and a liquid outlet pipe 8 are arranged on the pump body 1, and separation plates 6 are arranged on the side surfaces of the liquid inlet pipe 7 and the liquid outlet pipe 8;
The outside of the pump body 1 is symmetrically provided with limiting rods 9, the outsides of the two groups of limiting rods 9 are provided with fixing frames 10, a limiting rod sleeve 11 is fixed on the central axis of one side of the fixing frames 10 close to the pump body 1, one end of the limiting rod 9 is movably arranged in the limiting rod sleeve 11, and two groups of second springs 12 are arranged between the fixing frames 10 and the pump body 1;
The connecting rod 14 is fixed in the central position of one end of the transmission block 13, the connecting frame 15 is installed through the bolt on the side of the pump body 1, the self-lubricating bearing 16 is fixed in the central position of the connecting frame 15, the self-lubricating bearing 16 penetrates through the inside of the pump body 1, the sealing gasket 17 is installed on the inner bottom surface of the pump body 1, the connecting rod 14 penetrates through the self-lubricating bearing 16 and the sealing gasket 17 to be installed in the inside of the pump body 1, the impeller 18 is installed at one end of the connecting rod 14, the connecting nut 19 is installed on the connecting rod 14, the impeller 18 is arranged on the side of the connecting nut 19, and the pump cover 20 is installed on the outer side of the pump body 1 through the bolt.
In this embodiment: when the engine runs at a high speed, the impeller 18 is driven to rotate at a high speed through the transmission block 13, so that the impeller 18 rotates, larger centrifugal force is generated, the cooling liquid is further rotated, the elastic force of the first spring 4 is overcome, the sliding plate 5 is pushed to move, the sliding plate 5 slides on the pump body 1 through the limiting block 3 by means of the isolating plate 6, the position of the isolating plate 6 is changed, the liquid inlet pipe 7 and the liquid outlet pipe 8 are further expanded at the inlet and the outlet of the connecting pump body 1, the flow rate of the cooling liquid is increased, the purpose of accelerating the cooling of the engine is achieved, the fixing frame 10 is matched with the limiting rod sleeve 11 and the limiting rod 9 for use, meanwhile, the fixing frame 10 and the pump body 1 are horizontally slid by means of the second spring 12, the distance between the fixing frame 10 and the pump body 1 is adjusted according to the size of a mounting opening, the fixing frame 10 is mounted at the edge of the mounting opening, and the mounting of the device is completed by penetrating a bolt through the through hole to be connected at the edge of the upper water outlet of the engine.
Specifically, the pump body 1 and the baffle plate 2 are of an integrated structure, and the baffle plate 2 forms a telescopic mechanism through the first spring 4 and the sliding plate 5.
In this embodiment: the impeller 18 rotates in the pump body 1, so that the impeller 18 drives the cooling liquid to rotate, the cooling liquid generates centrifugal force to push the sliding plate 5 to move, and meanwhile, under the action of the first spring 4, the distance between the sliding plate 5 and the baffle plate 2 is changed after the sliding plate 5 is stressed.
Specific: the sliding plate 5 and the isolation plate 6 are of an integrated structure, and the isolation plate 6 forms a sliding structure with the pump body 1 through the limiting block 3.
In this embodiment: the isolation plate 6 slides on the pump body 1 through the limiting block 3, so that the sliding plate 5 cannot be separated from the pump body 1 under the condition of being stressed, and the sliding track of the sliding plate 5 attached to the pump body 1 for sliding is arc-shaped.
Specific: the liquid inlet pipe 7 and the liquid outlet pipe 8 are symmetrically arranged about the center of the pump body 1, and the opening area of the liquid inlet pipe 7 and the liquid outlet pipe 8 in the pump body 1 is smaller than the area of the isolation plate 6.
In this embodiment: the inlet and the outlet of the pump body 1 are connected with the liquid inlet pipe 7 and the liquid outlet pipe 8, the liquid inlet and the outlet of the pump body 1 are closed through the isolating plate 6, and the size of the inlet and the outlet of the pump body 1 connected with the liquid inlet pipe 7 and the liquid outlet pipe 8 is adjusted by sliding the isolating plate 6.
Specific: two groups of through holes are formed in the fixing frame 10, and a telescopic mechanism is formed between the fixing frame 10 and the pump body 1 through the second spring 12.
In this embodiment: the through holes formed in the fixing frame 10 are convenient to install on the edge of an upper water outlet of the engine by means of bolts, and meanwhile, the distance between the fixing frame 10 and the pump body 1 is adjusted by the second spring 12, so that the device is installed on the periphery of water tanks with different sizes by means of the fixing frame 10.
Specific: the fixing frame 10 forms a sliding structure with the pump body 1 through the limit rod sleeve 11 and the limit rod 9.
In this embodiment: the fixing frame 10 is matched with the limiting rod sleeve 11 and the limiting rod 9, and meanwhile, the second spring 12 is used for horizontally sliding between the fixing frame 10 and the pump body 1, so that the device can stably fix the pump body 1 by the aid of the fixing frame 10.
Working principle: when the engine is used, the transmission block 13 is driven by the engine to rotate through the belt pulley, the transmission block 13 drives the impeller 18 to rotate in the pump body 1 through the connecting rod 14, cooling liquid is conveyed in the pump body 1 through the impeller 18 to circulate in the cooling system through the liquid inlet pipe 7 and the liquid outlet pipe 8, the engine is cooled, meanwhile, according to the working state of the engine, when the engine runs at a high speed, the position of the isolation plate 6 is changed through the increased centrifugal force of the impeller 18, the liquid inlet pipe 7 and the liquid outlet pipe 8 are further expanded at the inlet and the outlet of the pump body 1, the flow rate of the cooling liquid is increased, the purpose of accelerating the engine cooling is achieved, the distance between the fixing frame 10 and the pump body 1 is changed through the second spring 12, and the device is installed at the edge of the upper water outlet of the engine with different sizes through the fixing frame 10.
The present invention is not limited to the above-described embodiments. All technical schemes formed by adopting equivalent substitution fall within the protection scope of the invention.
Claims (4)
1. The utility model provides an engine cooling water pump convenient to control import and export flow, includes pump body (1), transmission piece (13), impeller (18) and pump cover (20), its characterized in that: two groups of baffles (2) are welded inside the pump body (1), two groups of limiting blocks (3) are arranged on one side of the corresponding baffles (2), the limiting blocks (3) are fixed on the inner wall of the pump body (1), two groups of first springs (4) are fixed on the side face of the baffles (2), one end, away from the baffles (2), of each first spring (4) is fixed with a sliding plate (5), one end, away from the baffles (2), of each sliding plate (5) is fixed with a separation plate (6), the separation plates (6) are slidably mounted on the limiting blocks (3), a liquid inlet pipe (7) and a liquid outlet pipe (8) are arranged on the pump body (1), and the separation plates (6) are arranged on the side faces of the liquid inlet pipe (7) and the liquid outlet pipe (8).
The two groups of limiting rods (9) are symmetrically arranged on the outer sides of the pump body (1), fixing frames (10) are arranged on the outer sides of the two groups of limiting rods (9), limiting rod sleeves (11) are fixed on central axes of one sides of the fixing frames (10) close to the pump body (1), one ends of the limiting rods (9) are movably arranged in the limiting rod sleeves (11), and two groups of second springs (12) are arranged between the fixing frames (10) and the pump body (1);
The novel self-lubricating pump is characterized in that a connecting rod (14) is fixed at the center of one end of the transmission block (13), a connecting frame (15) is installed on the side face of the pump body (1) through a bolt, a self-lubricating bearing (16) is fixed at the center of the connecting frame (15), the self-lubricating bearing (16) penetrates through the inside of the pump body (1), a sealing gasket (17) is installed on the bottom surface of the inside of the pump body (1), the connecting rod (14) penetrates through the self-lubricating bearing (16) and the sealing gasket (17) and is installed in the inside of the pump body (1), an impeller (18) is installed at one end of the connecting rod (14), a connecting nut (19) is installed on the connecting rod (14), the impeller (18) is arranged on the side face of the connecting nut (19), and a pump cover (20) is installed on the outer side of the pump body (1) through a bolt;
the pump body (1) and the baffle (2) are of an integrated structure, and the baffle (2) forms a telescopic mechanism through the first spring (4) and the sliding plate (5);
The sliding plate (5) and the isolation plate (6) are of an integrated structure, and the isolation plate (6) forms a sliding structure through the limiting block (3) and the pump body (1).
2. The engine cooling water pump for facilitating control of inlet and outlet flow according to claim 1, wherein: the liquid inlet pipe (7) and the liquid outlet pipe (8) are symmetrically arranged with respect to the center of the pump body (1), and the area of the opening of the liquid inlet pipe (7) and the liquid outlet pipe (8) in the pump body (1) is smaller than that of the isolation plate (6).
3. The engine cooling water pump for facilitating control of inlet and outlet flow according to claim 1, wherein: two groups of through holes are formed in the fixing frame (10), and the fixing frame (10) forms a telescopic mechanism through the second spring (12) and the pump body (1).
4. The engine cooling water pump for facilitating control of inlet and outlet flow according to claim 1, wherein: the fixing frame (10) forms a sliding structure through the limiting rod sleeve (11) and the limiting rod (9) and the pump body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911317317.7A CN111306102B (en) | 2019-12-19 | 2019-12-19 | Engine cooling water pump convenient to control inlet and outlet flow |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911317317.7A CN111306102B (en) | 2019-12-19 | 2019-12-19 | Engine cooling water pump convenient to control inlet and outlet flow |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN111306102A CN111306102A (en) | 2020-06-19 |
| CN111306102B true CN111306102B (en) | 2024-06-14 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911317317.7A Active CN111306102B (en) | 2019-12-19 | 2019-12-19 | Engine cooling water pump convenient to control inlet and outlet flow |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN111306102B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117536881B (en) * | 2024-01-08 | 2024-04-05 | 上海豫宏建设集团有限公司 | Asphalt pump for processing asphalt waterproof coiled material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211370834U (en) * | 2019-12-19 | 2020-08-28 | 盐城海纳汽车零部件有限公司 | Engine cooling water pump convenient to control flow |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7156614B2 (en) * | 2000-01-26 | 2007-01-02 | The Gorman-Rupp Company | Centrifugal pump with multiple inlets |
| JP2006274929A (en) * | 2005-03-29 | 2006-10-12 | Kurita Water Ind Ltd | Pump for liquid |
| WO2014088126A1 (en) * | 2012-12-04 | 2014-06-12 | 주식회사 대흥전기 | Self-priming lifting pump directly connected to engine and having large capacity suction force |
| CN104061168B (en) * | 2013-03-22 | 2018-02-16 | 德昌电机(深圳)有限公司 | Pump |
| CN103541803A (en) * | 2013-11-01 | 2014-01-29 | 湖北飞剑泵业有限公司 | Flow temperature-controlling internal combustion engine cooling water pump |
| JP6642019B2 (en) * | 2016-01-14 | 2020-02-05 | 株式会社デンソー | Electric water pump |
| CN205533259U (en) * | 2016-02-25 | 2016-08-31 | 贵州鑫鑫曙光科技有限公司 | Centrifugal pump with steady voltage current limiting device |
| CN208431174U (en) * | 2018-07-11 | 2019-01-25 | 翁君晌 | A kind of hydraulic oil pump having monitoring function |
| CN209228676U (en) * | 2018-12-30 | 2019-08-09 | 无锡惠山泵业有限公司 | A kind of cooling water pump reducing belt friction |
| CN110030194A (en) * | 2019-03-28 | 2019-07-19 | 天津振达泵业有限公司 | A kind of immersible pump that can be used under hot environment |
-
2019
- 2019-12-19 CN CN201911317317.7A patent/CN111306102B/en active Active
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN211370834U (en) * | 2019-12-19 | 2020-08-28 | 盐城海纳汽车零部件有限公司 | Engine cooling water pump convenient to control flow |
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| CN111306102A (en) | 2020-06-19 |
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