CN110107795B - Vane pump capable of preventing oil pressure interference - Google Patents
Vane pump capable of preventing oil pressure interference Download PDFInfo
- Publication number
- CN110107795B CN110107795B CN201910536390.7A CN201910536390A CN110107795B CN 110107795 B CN110107795 B CN 110107795B CN 201910536390 A CN201910536390 A CN 201910536390A CN 110107795 B CN110107795 B CN 110107795B
- Authority
- CN
- China
- Prior art keywords
- variable
- oil
- spring
- guide groove
- groove
- 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
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000002265 prevention Effects 0.000 claims description 4
- 239000012530 fluid Substances 0.000 abstract description 6
- 238000006073 displacement reaction Methods 0.000 abstract description 4
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04C—ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; ROTARY-PISTON, OR OSCILLATING-PISTON, POSITIVE-DISPLACEMENT PUMPS
- F04C15/00—Component parts, details or accessories of machines, pumps or pumping installations, not provided for in groups F04C2/00 - F04C14/00
- F04C15/0042—Systems for the equilibration of forces acting on the machines or pump
- F04C15/0046—Internal leakage control
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16N—LUBRICATING
- F16N13/00—Lubricating-pumps
- F16N13/20—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0207—Pressure lubrication using lubricating pumps characterised by the type of pump
- F01M2001/0238—Rotary pumps
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01M—LUBRICATING OF MACHINES OR ENGINES IN GENERAL; LUBRICATING INTERNAL COMBUSTION ENGINES; CRANKCASE VENTILATING
- F01M1/00—Pressure lubrication
- F01M1/02—Pressure lubrication using lubricating pumps
- F01M2001/0292—Sealings
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Details And Applications Of Rotary Liquid Pumps (AREA)
- Rotary Pumps (AREA)
Abstract
The invention provides a vane pump capable of preventing oil pressure interference, which comprises a pump body, a variable sliding block, a variable spring and a rectangular sealing strip, wherein a variable feedback oil cavity is arranged between the pump body and the variable sliding block, the variable sliding block is provided with a spring pressing block and a sealing piece mounting groove, the variable spring is arranged on one side of the spring pressing block, the rectangular sealing strip is arranged in the sealing piece mounting groove, at least one end face of the variable sliding block is provided with an oil guide groove, one end of the oil guide groove is positioned close to an oil outlet cavity, and the other end of the oil guide groove is positioned close to an oil inlet cavity. The beneficial effects of the invention are as follows: through setting up the oil groove of leading on variable slider at least one terminal surface, just can introduce the fluid that leaks from variable slider terminal surface into the oil inlet chamber through leading the oil groove to avoid leaking the fluid and produce the interference to the oil pressure in the variable feedback oil pocket, make variable displacement vane pump realize accurate variable.
Description
Technical Field
The invention relates to the technical field of lubricating systems of internal combustion engines, in particular to a vane type oil pump with variable displacement.
Background
For the variable vane pump, a variable feedback oil cavity is arranged between a pump body and the variable vane, a sealing element mounting groove is usually arranged on the outer surface of the variable vane for isolating and sealing the variable feedback oil cavity and an oil inlet cavity, a sealing support element and a rectangular sealing element are arranged in the groove, and the sealing support element is arranged at the bottom in the sealing element mounting groove and used for supporting the rectangular sealing element.
The pressure oil in the variable feedback oil cavity on the existing vane pump is usually from the main oil duct, and the pressure oil from the main oil duct is attenuated after being filtered by the machine cooler, so that the oil pressure in the variable feedback oil cavity is lower than the oil pressure of the pump outlet, high-pressure oil at the pump outlet is easy to leak into the variable feedback oil cavity through an end face clearance, and thus, extra pressure is generated in the variable feedback oil cavity, and the extra pressure is acted on the variable sliding block together with the pressure oil from the main oil duct to perform variable, so that the phenomena of inaccurate variable, such as unexpected variable, advanced variable and the like, occur.
Disclosure of Invention
The invention aims to solve the technical problem of providing an oil pressure interference prevention vane pump, which can prevent high-pressure oil at a pump outlet from leaking into a variable feedback oil cavity through an end surface gap.
In order to solve the technical problems, the technical scheme of the invention is as follows: the utility model provides an oil pressure interference prevention vane pump, includes the pump body, variable slider, variable spring, rectangle sealing strip, is equipped with variable feedback oil pocket between the pump body and variable slider, the variable slider is equipped with spring briquetting and sealing member mounting groove, variable spring installs one side of spring briquetting, the rectangle sealing strip is installed in the sealing member mounting groove, the variable slider is equipped with an oil groove on an terminal surface at least, the one end of oil groove is located the position that is close to the oil pocket, and the other end is located the position that is close to the oil pocket.
In one embodiment, the upper end face and the lower end face of the variable sliding block are respectively provided with an oil guide groove.
In one embodiment, one end of the oil guide groove is positioned close to the oil outlet cavity, and the other end of the oil guide groove is positioned close to the oil inlet cavity and the root of the spring pressing block.
Preferably, the oil guiding groove is in an arc shape as a whole.
The beneficial effects of the invention are as follows: through setting up the oil groove of leading on variable slider at least one terminal surface, just can introduce the fluid that leaks from variable slider terminal surface into the oil inlet chamber through leading the oil groove to avoid leaking the fluid and produce the interference to the oil pressure in the variable feedback oil pocket, make variable displacement vane pump realize accurate variable.
Drawings
FIG. 1 is a schematic view of a vane pump according to an embodiment of the present invention;
the reference numerals are:
1-pump body 2-variable sliding block 3-variable spring
4-variable feedback oil cavity 5-rectangular sealing strip 6-oil guide groove
21-spring press block.
Detailed Description
The invention will be further described with reference to examples and drawings, to which reference is made, but which are not intended to limit the scope of the invention.
In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present invention.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise. In the description of the present invention, it should be noted that, unless otherwise specified and defined, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, mechanically or electrically connected, may be in communication with each other between two elements, may be directly connected, or may be indirectly connected through an intermediate medium, and the specific meaning of the terms may be understood by those skilled in the art according to circumstances.
As shown in fig. 1, the preferred embodiment of the present invention is: the utility model provides an oil pressure interference prevention vane pump, includes pump body 1, variable slider 2, variable spring 3, rectangle sealing strip 4, is equipped with variable feedback oil pocket 5 between pump body 1 and variable slider 2, variable slider 2 is equipped with spring briquetting 21 and sealing member mounting groove, variable spring 3 installs one side of spring briquetting 21, rectangle sealing strip 4 installs in the sealing member mounting groove, respectively be equipped with one on the up and down terminal surface of variable slider 2 and lead oil groove 6, lead oil groove 6 wholly and be convex, the one end that leads oil groove 6 is located the position that is close to the play oil pocket, and the other end is located the position that is close to oil inlet pocket and spring briquetting 21 root.
Through setting up oil guide groove 6 on the up-and-down end face of variable slider 2, just can introduce the fluid that leaks from variable slider 2 terminal surface into the oil feed chamber through oil guide groove 6 to avoid leaking the fluid and produce the interference to the oil pressure in the variable feedback oil pocket 5, make variable displacement vane pump realize accurate variable.
The foregoing embodiments are preferred embodiments of the present invention, and in addition, the present invention may be implemented in other ways, and any obvious substitution is within the scope of the present invention without departing from the concept of the present invention.
In order to facilitate understanding of the improvements of the present invention over the prior art, some of the figures and descriptions of the present invention have been simplified, and some other elements have been omitted from this document for clarity, as will be appreciated by those of ordinary skill in the art.
Claims (2)
1. The utility model provides an oil pressure interference prevention vane pump, includes pump body (1), variable slider (2), variable spring (3), rectangle sealing strip (4), is equipped with variable feedback oil pocket (5) between pump body (1) and variable slider (2), variable slider (2) are equipped with spring briquetting (21) and sealing member mounting groove, variable spring (3) are installed one side of spring briquetting (21), rectangle sealing strip (4) are installed in the sealing member mounting groove, its characterized in that: the variable sliding block (2) is provided with an oil guide groove (6) on at least one end face, the whole oil guide groove (6) is arc-shaped, one end of the oil guide groove (6) is located at a position close to an oil outlet cavity, and the other end of the oil guide groove is located at a position close to the root of an oil inlet cavity and a spring pressing block (21).
2. The oil pressure disturbance resistant vane pump of claim 1 wherein: the upper end face and the lower end face of the variable sliding block (2) are respectively provided with an oil guide groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910536390.7A CN110107795B (en) | 2019-06-20 | 2019-06-20 | Vane pump capable of preventing oil pressure interference |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910536390.7A CN110107795B (en) | 2019-06-20 | 2019-06-20 | Vane pump capable of preventing oil pressure interference |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110107795A CN110107795A (en) | 2019-08-09 |
| CN110107795B true CN110107795B (en) | 2024-01-19 |
Family
ID=67495529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910536390.7A Active CN110107795B (en) | 2019-06-20 | 2019-06-20 | Vane pump capable of preventing oil pressure interference |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110107795B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111322509A (en) * | 2020-04-24 | 2020-06-23 | 湖南机油泵股份有限公司 | Variable displacement pump capable of reducing variable fluctuation |
| CN112682679B (en) * | 2021-01-25 | 2022-03-11 | 湖南机油泵股份有限公司 | Variable displacement oil pump capable of avoiding interference |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204906A (en) * | 1982-05-24 | 1983-11-29 | Daihatsu Motor Co Ltd | Oil pump for engine |
| EP0189829A2 (en) * | 1985-01-25 | 1986-08-06 | Blohm + Voss Ag | Method for removing the leaking liquid from a leakage chamber and sealing arrangement of a propeller shaft therefor |
| US6763797B1 (en) * | 2003-01-24 | 2004-07-20 | General Motors Corporation | Engine oil system with variable displacement pump |
| CN104100522A (en) * | 2014-07-08 | 2014-10-15 | 湖南机油泵股份有限公司 | Displacement-variable blade pump with simplified structure |
| CN204756395U (en) * | 2015-06-15 | 2015-11-11 | 湖南机油泵股份有限公司 | Oil pump revealed is prevented to terminal surface |
| CN210088428U (en) * | 2019-06-20 | 2020-02-18 | 湖南机油泵股份有限公司 | Prevent vane pump of oil pressure interference |
-
2019
- 2019-06-20 CN CN201910536390.7A patent/CN110107795B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58204906A (en) * | 1982-05-24 | 1983-11-29 | Daihatsu Motor Co Ltd | Oil pump for engine |
| EP0189829A2 (en) * | 1985-01-25 | 1986-08-06 | Blohm + Voss Ag | Method for removing the leaking liquid from a leakage chamber and sealing arrangement of a propeller shaft therefor |
| US6763797B1 (en) * | 2003-01-24 | 2004-07-20 | General Motors Corporation | Engine oil system with variable displacement pump |
| CN104100522A (en) * | 2014-07-08 | 2014-10-15 | 湖南机油泵股份有限公司 | Displacement-variable blade pump with simplified structure |
| CN204756395U (en) * | 2015-06-15 | 2015-11-11 | 湖南机油泵股份有限公司 | Oil pump revealed is prevented to terminal surface |
| CN210088428U (en) * | 2019-06-20 | 2020-02-18 | 湖南机油泵股份有限公司 | Prevent vane pump of oil pressure interference |
Also Published As
| Publication number | Publication date |
|---|---|
| CN110107795A (en) | 2019-08-09 |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: No.69 Hengyue North Road, Chengguan Town, Hengdong County, Hengyang City, Hunan Province Patentee after: Hunan Meihu Intelligent Manufacturing Co.,Ltd. Country or region after: China Address before: No.69 Hengyue North Road, Chengguan Town, Hengdong County, Hengyang City, Hunan Province Patentee before: Hunan Oil Pump Co.,Ltd. Country or region before: China |