CN204785471U - Rotor formula oil pump - Google Patents
Rotor formula oil pump Download PDFInfo
- Publication number
- CN204785471U CN204785471U CN201520482608.2U CN201520482608U CN204785471U CN 204785471 U CN204785471 U CN 204785471U CN 201520482608 U CN201520482608 U CN 201520482608U CN 204785471 U CN204785471 U CN 204785471U
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- CN
- China
- Prior art keywords
- oil
- pump
- rotor
- pump cover
- pump housing
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- Expired - Fee Related
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Abstract
The utility model relates to a rotor formula oil pump, including the pump body, pump cover, external rotor, inner rotor and voltage limiting mechanism, to press the oil circuit with high -pressure oil pocket and move towards to design for " U " shape structure, the oil -out links up, the pump body and pump cover are inside all to be equipped with sealed annular on the endocyclic counterface of inner rotor, the voltol oil of voltol oil intracavity gets into sealed annular from the end clearance between inner rotor, the pump body and pump cover, forms complete sealed oil ring area, prevents air entering low pressure oil pocket from inner rotor and the pump body, the pump cover end clearance within a definite time, the inside voltol oil alveolus territory of the pump body and pump cover all is equipped with the one -level buffering recess of a rectangular shape and the second grade buffering recess of fan -like pattern. The utility model discloses it is smooth and easy to guarantee into, produce oil, effectively reduces the vortex, improves the oil charge rate of external rotor and inner rotor intertooth space, reduces the cavitation erosion of oil pump, reduce the impact that operation in -process intertooth space low pressure oil received the voltol oil, and the oil pressure transition is steady, effectively reduces the pressure oscillation and the noise of oil pump.
Description
Technical field
The utility model relates to lubricating pump of automobile, is specifically related to a kind of rotor-type oil pump.
Background technique
In motor car engine, oil pump is generally rotor pump, and it is made up of the pump housing, internal rotor, external rotor, pump cover, limiting mechanism of pressure.Internal rotor and external rotor eccentric setting in the pump housing, the low pressure oil pocket of full symmetric, high-voltage oil cavity and draining chamber is all provided with in the pump housing and pump cover, the pump housing and pump cover pass through bolts assemblies, low pressure oil pocket in the pump housing and the low pressure oil pocket in pump cover are combined into the low pressure oil pocket of oil pump, in like manner, high-voltage oil cavity in the pump housing and the high-voltage oil cavity in pump cover are combined into the high-voltage oil cavity of oil pump, and the draining chamber in the pump housing and the draining chamber in pump cover are combined into the draining chamber of oil pump.Low pressure oil pocket is communicated with filler opening, and high-voltage oil cavity is communicated with oil outlet, and draining chamber is communicated with low pressure oil pocket.Rotated by bent axle Direct driver internal rotor during engine operation, internal rotor drives external rotor to rotate, and is rotated, the machine oil of low-pressure cavity is constantly transported to hyperbaric chamber by the cooperation of inner and outer rotors.Standing in general oil pump have limiting mechanism of pressure, and when oil pump internal pressure is too high, pressure-limit valve work, makes the machine oil of partial high pressure from limiting mechanism of pressure, leak into draining chamber, then flow back to low pressure oil pocket by draining chamber.Prevent hyperbaric chamber inner engine oil overpressure.
The oil pump of above bent axle direct drive, because root diameter is comparatively large, when when high speed operation, there will be eddy current, causes the oil-filled rate between rotor tooth to reduce, and between cog low pressure oil by the impact of high pressure oil, and then causes pressure fluctuation of lubricating pump comparatively large, and noise is large; Oil pump is when high speed operation, and air easily enters low pressure oil pocket from the end clearance between internal rotor and the pump housing, pump cover, causes oil pump to cavitate serious, and then causes pressure fluctuation of lubricating pump comparatively large, and noise is large; Oil pump is when high speed operation, and between rotor tooth, oil-filled rate is low, and cause between cog low pressure oil in running large by the impact of high pressure oil, and then cause pressure fluctuation of lubricating pump comparatively large, noise is large.
Summary of the invention
The purpose of this utility model be solve above-mentioned oil pump because of root diameter large, cause pressure fluctuation of lubricating pump large, the technical problem that noise is large, a kind of rotor-type oil pump is provided, this oil pump can improve the oil-filled rate of between cog, reduce high pressure oil to the impact of between cog, reduce cavitation erosion, and then reduce pressure surge and the noise of oil pump.
A kind of rotor-type oil pump described in the utility model, comprise the pump housing, pump cover, external rotor, internal rotor and limiting mechanism of pressure, the described pump housing is corresponding with pump cover, and be connected by many bolts with pump cover, external rotor is installed in the concave station of pump housing center, and with internal rotor internal messing, pump cover is provided with filler opening and oil outlet, and be all provided with low pressure oil pocket in the pump housing and pump cover, high-voltage oil cavity and draining chamber, low pressure oil pocket is communicated with draining chamber with filler opening, high-voltage oil cavity is communicated with oil outlet, limiting mechanism of pressure is between high-voltage oil cavity and draining chamber, it is characterized in that: high-voltage oil cavity is designed to " U " shape structure by oil circuit trend, oil outlet is connected, ensure fuel-displaced smooth and easy, " U " shape structure should bring larger arrangement space to oil suction chamber simultaneously, guarantee oil-feed is smooth and easy, effectively reduce eddy current, improve the oil-filled rate of external rotor and internal rotor between cog, reduce between cog low pressure oil in running and be subject to the impact of high pressure oil.
Further, the described pump housing and pump cover inside are all provided with closure gasket groove along on internal rotor inner ring counterface, high pressure oil in high-voltage oil cavity enters closure gasket groove from internal rotor, end clearance between the pump housing and pump cover, form complete sealing oil endless belt, prevent air from from the end clearance between internal rotor and the pump housing, pump cover, entering low pressure oil pocket, effectively reduce the cavitation erosion of oil pump.
Further, the transverse section of described closure gasket groove is rectangle, easy to process.
Further, the described pump housing and pump cover internal high pressure oil pocket region are all provided with the first-level buffer groove of a long strip and the level 2 buffering groove of fan shape, the degree of depth of this first-level buffer groove and level 2 buffering groove is all 1mm, in oil pump running, external rotor and internal rotor between cog low pressure oil are effectively alleviated by the impact of high pressure oil, make oil pressure transition in oil pump running steady.
The beneficial effects of the utility model: arrange " U " shape structure in hyperbaric chamber, can ensure into and out of oil smooth and easy, effectively reduce eddy current, improve the oil-filled rate of external rotor and internal rotor between cog; In the pump housing and pump cover, closure gasket groove is set, prevents air from entering low pressure oil pocket, reduce the cavitation erosion of oil pump; The pump housing and pump cover inner high voltage cavity region arrange buffer groove, and oil pressure transition is steady, reduce further pressure surge and the noise of oil pump, and each correlated parts of this oil pump is reasonable in design, structure simple, processing is also more convenient.
Accompanying drawing explanation
Fig. 1 is engine oil pump assembly explosive view
Fig. 2 is the engine oil pump assembly structural representation with broken section.
Fig. 3 is pump body structure schematic diagram.
Fig. 4 is pump cover structure schematic diagram.
Fig. 5 is the A-A sectional view of Fig. 2.
Fig. 6 is the partial enlarged drawing of Fig. 5.
In figure: the 1-pump housing, 2-external rotor, 3-internal rotor, 4-pump cover, 5-screw, 6-limiting mechanism of pressure, 7-low pressure oil pocket, 8-high-voltage oil cavity, 9-draining chamber, 10-closure gasket groove, 11-first-level buffer groove, 12-level 2 buffering groove, 13-filler opening, 14-oil outlet.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail:
See Fig. 1, a kind of rotor-type oil pump shown in Fig. 2, comprise the pump housing 1, pump cover 4, external rotor 2, internal rotor 3 and limiting mechanism of pressure 6, the described pump housing 1 is corresponding with pump cover 4, and be connected by many bolts 5 with pump cover 4, external rotor 2 is installed in the concave station of pump housing center, and with internal rotor 3 internal messing, the two ends of pump cover 4 bottom are provided with filler opening 13 and oil outlet 14, and be all provided with low pressure oil pocket 7 in the pump housing 1 and pump cover 4, high-voltage oil cavity 8 and draining chamber 9, low pressure oil pocket 7 is communicated with draining chamber 9 with filler opening 13, high-voltage oil cavity 8 is communicated with oil outlet 14, limiting mechanism of pressure 6 is between high-voltage oil cavity 8 and draining chamber 9, it is characterized in that: high-voltage oil cavity 8 is designed to " U " shape structure by oil circuit trend, oil outlet 14 is connected.
Further, see the rotor-type oil pump shown in Fig. 3, Fig. 4 and Fig. 6, the pump housing 1 and pump cover 4 inside are all provided with closure gasket groove 10 along on internal rotor inner ring counterface, high pressure oil in high-voltage oil cavity 8 enters closure gasket groove 10 from internal rotor 3, end clearance between the pump housing 1 and pump cover 4, form complete sealing oil endless belt, prevent air from from the end clearance between internal rotor 3 and the pump housing 1, pump cover 4, entering low pressure oil pocket 7.
Further, it is characterized in that: the transverse section of described closure gasket groove 10 is rectangle.
Further, see the rotor-type oil pump shown in Fig. 3, Fig. 4, the pump housing 1 and pump cover 4 internal high pressure oil pocket 8 region are all provided with the first-level buffer groove 11 of a long strip and the level 2 buffering groove 12 of fan shape, and the degree of depth of this first-level buffer groove and level 2 buffering groove is all 1mm.
Change the transverse section of described closure gasket groove (10) into semicircle, then form another embodiment.
Claims (5)
1. a rotor-type oil pump, comprise the pump housing (1), pump cover (4), external rotor (2), internal rotor (3) and limiting mechanism of pressure (6), the described pump housing (1) is corresponding with pump cover (4), and be connected by many bolts (5) with pump cover (4), external rotor (2) is installed in the concave station of pump housing center, and with internal rotor (3) internal messing, pump cover (4) is provided with filler opening (13) and oil outlet (14), and be all provided with low pressure oil pocket (7) in the pump housing (1) and pump cover (4), high-voltage oil cavity (8) and draining chamber (9), low pressure oil pocket (7) is communicated with draining chamber (9) with filler opening (13), high-voltage oil cavity (8) is communicated with oil outlet (14), limiting mechanism of pressure (6) is between high-voltage oil cavity (8) and draining chamber (9), it is characterized in that: high-voltage oil cavity (8) is designed to " U " shape structure by oil circuit trend, oil outlet (14) is connected.
2. rotor-type oil pump according to claim 1, it is characterized in that: the described pump housing (1) is all provided with closure gasket groove (10) with pump cover (4) inside along on the counterface of internal rotor inner ring, high pressure oil in high-voltage oil cavity (8) enters closure gasket groove (10) from internal rotor (3), end clearance between the pump housing (1) and pump cover (4), form complete sealing oil endless belt, prevent air from from the end clearance between internal rotor (3) and the pump housing (1), pump cover (4), entering low pressure oil pocket (7).
3. rotor-type oil pump according to claim 2, is characterized in that: the transverse section of described closure gasket groove (10) is rectangle or semicircle.
4. rotor-type oil pump according to claim 1 and 2, is characterized in that: the pump housing (1) and pump cover (4) internal high pressure oil pocket (8) region are all provided with the first-level buffer groove (11) of a long strip and the level 2 buffering groove (12) of fan shape.
5. rotor-type oil pump according to claim 4, is characterized in that: the degree of depth of described first-level buffer groove and level 2 buffering groove is all 1mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482608.2U CN204785471U (en) | 2015-07-07 | 2015-07-07 | Rotor formula oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520482608.2U CN204785471U (en) | 2015-07-07 | 2015-07-07 | Rotor formula oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204785471U true CN204785471U (en) | 2015-11-18 |
Family
ID=54525520
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520482608.2U Expired - Fee Related CN204785471U (en) | 2015-07-07 | 2015-07-07 | Rotor formula oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204785471U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627073A (en) * | 2016-03-21 | 2016-06-01 | 奇瑞汽车股份有限公司 | Rotor oil pump |
| CN106968755A (en) * | 2017-05-08 | 2017-07-21 | 湖南机油泵股份有限公司 | It is a kind of to weaken the machine oil refrigerating module housing of vortex phenomenon |
| CN107420298A (en) * | 2017-09-09 | 2017-12-01 | 湖南机油泵股份有限公司 | The impeller pump that a kind of internal rotor floats |
| CN107514538A (en) * | 2017-09-22 | 2017-12-26 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump for reducing noise |
| CN110206994A (en) * | 2019-07-05 | 2019-09-06 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump preventing oil suction chamber air inlet |
-
2015
- 2015-07-07 CN CN201520482608.2U patent/CN204785471U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105627073A (en) * | 2016-03-21 | 2016-06-01 | 奇瑞汽车股份有限公司 | Rotor oil pump |
| CN106968755A (en) * | 2017-05-08 | 2017-07-21 | 湖南机油泵股份有限公司 | It is a kind of to weaken the machine oil refrigerating module housing of vortex phenomenon |
| CN106968755B (en) * | 2017-05-08 | 2022-08-19 | 湖南机油泵股份有限公司 | Engine oil cooling module shell capable of weakening eddy current phenomenon |
| CN107420298A (en) * | 2017-09-09 | 2017-12-01 | 湖南机油泵股份有限公司 | The impeller pump that a kind of internal rotor floats |
| CN107514538A (en) * | 2017-09-22 | 2017-12-26 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump for reducing noise |
| CN110206994A (en) * | 2019-07-05 | 2019-09-06 | 湖南机油泵股份有限公司 | A kind of rotor-type oil pump preventing oil suction chamber air inlet |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20151118 Termination date: 20210707 |