CN208252250U - A kind of engine idling start stop system oil pump - Google Patents
A kind of engine idling start stop system oil pump Download PDFInfo
- Publication number
- CN208252250U CN208252250U CN201820817728.7U CN201820817728U CN208252250U CN 208252250 U CN208252250 U CN 208252250U CN 201820817728 U CN201820817728 U CN 201820817728U CN 208252250 U CN208252250 U CN 208252250U
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- China
- Prior art keywords
- pump
- pump core
- internal rotor
- stop system
- engine idling
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Abstract
A kind of engine idling start stop system oil pump provided by the utility model includes pedestal, the pump housing and rear cover, the pump housing connects the pedestal and the rear cover, the pedestal is equipped with oil outlet and fuel feed hole, the pump housing includes shell, motor, pump core outer rotor and pump core internal rotor, the pump core internal rotor is prejudicially connected to the motor, the pump core outer rotor is equipped with cavity and multiple grooves, the grove shaped circumferential is set to the periphery of the cavity, the pump core internal rotor is equipped with multiple interior teeth portions, the pump core internal rotor is installed in the cavity, the interior teeth portion is rotationally close or deviates each groove, periodically variable oil sucting cavity and oil pumping chamber are formed between the interior teeth portion and the groove.To which by the eccentric cooperation of pump core outer rotor and pump core internal rotor, reliable performance improves the market competitiveness.
Description
Technical field
The utility model relates to oil pump technology fields, specifically, being a kind of engine idling start stop system oil pump.
Background technique
With the fast development of automobile industry, each automobile vendor constantly researches and develops new energy conservation and environmental protection technology, improves market
Competitiveness.Start and stop technology (Start-stop System) is exactly one of which, when being dedicated to reducing engine idling to greatest extent
The loss of fuel oil.When running car is in crowded urban traffic road, total unavoidable parking is waited traffic lights, and engine idling
The energy of consumption is skimble-skamble, and starting stopping technical is exactly the waste for avoiding this part energy, while to the saving energy
It has great significance with discharge is lowered.
Start the working method of shutdown system by taking automatic catch vehicle as an example, as long as driver applies braking and stops vehicle,
Engine then auto extinguishing, after release braking, driver steps on the gas, and engine will start automatically.This energy-efficient driving side
For formula there is no the daily driving habit of people is changed, it is any using upper trouble not bring car owner, but brings significant section
The effect of oily emission reduction.
Start and stop technology is automatically stopped engine operation when vehicle can be made temporarily to stop, to reduce fuel consumption, lowers
Discharge especially has good effect to energy-saving and emission-reduction with this technology in those congested in traffic big cities.In Europe, compared with
High fuel price and emission regulation is quite stringent, and start and stop technology has been widely used.The motor vehicle emission of China at present
Regulation directly chases after Europe, and in the environment of the energy conservation and environmental protection to grow to even greater heights requires, huge discharge and high-end vehicle were since 2015
It is all configured with idling start stop system, future will necessarily extend to the general marketplace of low and middle-end, the property of existing idling start and stop oil pump
Can be unreliable, it is be easy to cause the blocking of the fuel-displaced process of oil suction-, noise is big, reduces the service life.
Summary of the invention
The main purpose of the utility model is to provide a kind of engine idling start stop system oil pumps, overcome the prior art
Deficiency, the inclination cooperation of pump core outer rotor and pump core internal rotor, so that the overlap coefficient between inner and outer rotors is big, transmission is flat
Surely, reduce noise, reliable performance improves the market competitiveness.
To achieve the above objectives, a kind of the technical solution adopted in the utility model are as follows: engine idling start stop system oil pump
Including pedestal, the pump housing and rear cover, the pump housing connects the pedestal and the rear cover, the pedestal be equipped with oil outlet and into
Oilhole, the pump housing include shell, motor, pump core outer rotor and pump core internal rotor, and the pump core internal rotor prejudicially connects
In the motor, so that the pump core outer rotor and pump core internal rotor bias engagement, the pump core outer rotor are equipped with cavity
With multiple grooves, the grove shaped circumferential is set to the periphery of the cavity, and the pump core internal rotor is equipped with multiple interior teeth portions, described
Pump core internal rotor is installed in the cavity, and the interior teeth portion is rotationally close or deviates each groove, the internal tooth
Periodically variable oil sucting cavity and oil pumping chamber are formed between portion and the groove, the appearance between the interior teeth portion and the groove
When product is gradually increased, oil sucting cavity described in depression formation is high when the volume between the interior teeth portion and the groove is gradually reduced
For swaging at the oil pumping chamber, the fuel feed hole is connected to the oil sucting cavity, and the oil outlet is connected to the oil pumping chamber.
An embodiment according to the present utility model, the number of recesses of the pump core outer rotor is than in the pump core internal rotor
Teeth portion quantity is one more.
An embodiment according to the present utility model, the number of recesses are 8, and the quantity of the pump core internal rotor is 7.
An embodiment according to the present utility model, the pump core outer rotor are equipped with the external tooth conical surface, the external tooth conical surface setting
In the inner wall of the groove, the pump core internal rotor is equipped with the internal tooth conical surface, and the internal tooth conical surface is set to the outer of the interior teeth portion
Wall, the internal tooth conical surface are aligned from the interior teeth portion to the groove slant.
An embodiment according to the present utility model, the pump core internal rotor are equipped with ramp and lower inclined plane, the ramp
The inner periphery two sides of the pump core internal rotor are respectively arranged at the lower inclined plane.
An embodiment according to the present utility model, the taper of the ramp are 30 °~60 °, the taper of the lower inclined plane
It is 20 °~50 °.
An embodiment according to the present utility model, the taper of the ramp are 45 °, and the taper of the lower inclined plane is 30 °.
An embodiment according to the present utility model, the pump housing further comprise shell and the first O-ring, the shell
Equipped with annular groove, the annular groove is set to the periphery of the shell, and first O-ring is installed in the annular groove.
An embodiment according to the present utility model, the rear cover are equipped with bolt, the second O-ring and inner cavity, the bolt
The pedestal, the pump housing and rear cover are connected, second O-ring is set between the pump housing and the periphery of the rear cover, institute
The pump housing is stated to be installed in the inner cavity of the rear cover.
Detailed description of the invention
Fig. 1 is the perspective view of the engine idling start stop system oil pump of a preferred embodiment according to the present utility model.
Fig. 2 is the explosive view of the engine idling start stop system oil pump of above preferred embodiment according to the present utility model.
Fig. 3 is the cross-sectional view of the engine idling start stop system oil pump of above preferred embodiment according to the present utility model.
Fig. 4 A is the top view of the engine idling start stop system oil pump of above preferred embodiment according to the present utility model.
Fig. 4 B is the bottom view of the engine idling start stop system oil pump of above preferred embodiment according to the present utility model.
Fig. 5 A is the side view of the engine idling start stop system oil pump of above preferred embodiment according to the present utility model.
Fig. 5 B is the cooperation schematic diagram of the pump core inner and outer rotors of above preferred embodiment according to the present utility model.
Fig. 6 A is the three-dimensional structure diagram of the pump core outer rotor of above preferred embodiment according to the present utility model.
Fig. 6 B is the floor map of the pump core outer rotor of above preferred embodiment according to the present utility model.
Fig. 7 A is the three-dimensional structure diagram of the pump core internal rotor of above preferred embodiment according to the present utility model.
Fig. 7 B is the floor map of the pump core internal rotor of above preferred embodiment according to the present utility model.
Fig. 8 A is the cross-sectional view of the pump core internal rotor of above preferred embodiment according to the present utility model.
Fig. 8 B is the area the A enlarged drawing in Fig. 8 A according to the present utility model.
Fig. 8 C is the area the B enlarged drawing in Fig. 8 A according to the present utility model.
Fig. 9 is the three-dimensional structure diagram of the rear cover of above preferred embodiment according to the present utility model.
Specific embodiment
It is described below for disclosing the utility model so that those skilled in the art can be realized the utility model.It retouches below
Preferred embodiment in stating is only used as illustrating, it may occur to persons skilled in the art that other obvious modifications.
As shown in Figures 1 to 9 is a kind of engine idling start stop system oil pump 1, the engine idling start stop system
Oil pump 1 includes pedestal 10, the pump housing 20 and rear cover 30, and the pump housing 20 connects the pedestal 10 and the rear cover 30, the base
Seat 10 is equipped with oil outlet 11 and fuel feed hole 12, and the pump housing 20 includes shell 21, motor 24, pump core outer rotor 25 and pump core
Internal rotor 26, the pump core internal rotor 26 are prejudicially connected to the motor 24, so that the pump core outer rotor 25 and the pump
The eccentric engagement of in-core rotor 26, the pump core outer rotor 25 are equipped with cavity 253 and multiple grooves 256, and 256 annular of groove is set
It is placed in the periphery of the cavity 253, the pump core internal rotor 26 is equipped with multiple interior teeth portions 263, and the pump core internal rotor 26 is installed
In in the cavity 253, the interior teeth portion 263 is rotationally close or deviates each groove 256, the interior teeth portion 263
Periodically variable oil sucting cavity 254 and oil pumping chamber 255 are formed between the groove 256, when the interior teeth portion 263 and described recessed
When volume between slot 256 is gradually increased, oil sucting cavity 254 described in depression formation, when the interior teeth portion 263 and the groove 256
Between volume when being gradually reduced, high pressure forms the oil pumping chamber 255, and the fuel feed hole 12 is connected to the oil sucting cavity 254, described
Oil outlet 11 is connected to the oil pumping chamber 255.To which by the eccentric cooperation of pump core outer rotor 25 and pump core internal rotor 26, performance can
It leans on, improves the market competitiveness.
Wherein, the pedestal 10 is equipped with a pair of of oilhole sealing ring 13, the oilhole sealing ring 13 be respectively arranged in it is described go out
Oilhole 11 and the fuel feed hole 12 increase oil inlet and fuel-displaced leakproofness.
The pump housing 20 further comprises shell 21 and the first O-ring 23, and the shell 21 is equipped with annular groove 22, the ring
Slot 22 is set to the periphery of the shell 21, and first O-ring 23 is installed in the annular groove 22, and be increased the pedestal
Leakproofness between 10 and the pump housing 20.
Wherein, 256 quantity of groove of the pump core outer rotor 25 is more than 263 quantity of interior teeth portion of the pump core internal rotor 26
One, if so that there is dry seal and can be periodically variable between the pump core outer rotor 25 and the pump core internal rotor 26
Space, when the pump core internal rotor 26 rotation, the interior teeth portion 263 of the pump core internal rotor 26 presses to the pump core outer rotor 25
256 inner wall of groove, form the cavity of eccentric variation between the adjacent interior teeth portion 263 and the groove 256, cavity with
The rotation of the pump core internal rotor 26 and generate volume size variation, in the side that volume changes from small to big, described in depression formation inhale
Oil pocket 254 sucks fuel oil by the fuel feed hole 12, and in the side of volume from large to small, high pressure forms the oil pumping chamber 255,
Fuel oil is pumped out with certain pressure.
Wherein, 256 quantity of groove is 8, and the quantity of the pump core internal rotor 26 is 7.
Wherein, the pump core outer rotor 25 is equipped with an external tooth index aperture 251, and the pump core internal rotor 26 is equipped with a pair of of internal tooth
Index aperture 261.
The pump core outer rotor 25 is equipped with the external tooth conical surface 252, and the external tooth conical surface 252 is set to the interior of the groove 256
Wall, the pump core internal rotor 26 are equipped with the internal tooth conical surface 262, and the internal tooth conical surface 262 is set to the outer wall of the interior teeth portion 263,
The internal tooth conical surface 262 is from the interior teeth portion 263 to 256 oblique alignment of groove, by the internal tooth conical surface 262 and described
Inclination cooperation between the external tooth conical surface 252, increases the contact area between interior teeth portion 263 and the groove 256, overlap coefficient
Greatly, stable drive is pulsed small, and the generation for reducing noise is facilitated.
Wherein, the pump core internal rotor 26 is equipped with ramp 264 and lower inclined plane 265, the ramp 264 and described oblique
Face 265 is respectively arranged at the inner periphery two sides of the pump core internal rotor 26, and the ramp 264 and the lower inclined plane 265 are close
The connecting shaft of the motor 24 effectively prevent the axial gap between the pump core internal rotor 26 and the motor 24 excessive, keeps away
Exempting from radial imbalance makes the deformation of the pump core outer rotor 25 friction pump housing 20, helps to reduce radial clearance.
Wherein, the taper α of the ramp 264 is 30 °~60 °, and the taper β of the lower inclined plane 265 is 20 °~50 °.
Preferably, the taper α of the ramp 264 is 45 °, and the taper β of the lower inclined plane 265 is 30 °.
The rear cover 30 is equipped with bolt 31, the second O-ring 32, inner cavity 33 and external hole 34, and the bolt 31 connects institute
State pedestal 10, the pump housing 20 and rear cover 30, second O-ring 32 be set to the pump housing 20 and the rear cover 30 periphery it
Between, the pump housing 20 is installed in the inner cavity 33 of the rear cover 30, and the external hole 34 is set to the subsequent downside, is able to
External control equipment.
Basic principles, main features, and advantages of the present invention has been shown and described above.Current row
The technical staff of industry is described in above embodiments and description it should be appreciated that the present utility model is not limited to the above embodiments
Only the principles of the present invention, the utility model also has respectively on the premise of not departing from the spirit and scope of the utility model
Kind changes and improvements, these changes and improvements are both fallen in the range of claimed invention.The requires of the utility model
Protection scope defined by appended claims and its equivalent.
Claims (9)
1. a kind of engine idling start stop system oil pump, which is characterized in that including pedestal, the pump housing and rear cover, the pump housing connects
The pedestal and the rear cover are connect, the pedestal is equipped with oil outlet and fuel feed hole, and the pump housing includes shell, motor, pump core
Outer rotor and pump core internal rotor, the pump core internal rotor are prejudicially connected to the motor so that the pump core outer rotor and
The pump core internal rotor bias engagement, the pump core outer rotor are equipped with cavity and multiple grooves, and the grove shaped circumferential is set to institute
The periphery of cavity is stated, the pump core internal rotor is equipped with multiple interior teeth portions, and the pump core internal rotor is installed in the cavity, described
Interior teeth portion is rotationally close or deviates each groove, is formed between the interior teeth portion and the groove periodically variable
Oil sucting cavity and oil pumping chamber, when the volume between the interior teeth portion and the groove is gradually increased, oil sucting cavity described in depression formation,
When the volume between the interior teeth portion and the groove is gradually reduced, high pressure forms the oil pumping chamber, the fuel feed hole connection
The oil sucting cavity, the oil outlet are connected to the oil pumping chamber.
2. engine idling start stop system oil pump according to claim 1, which is characterized in that the pump core outer rotor it is recessed
Slot number than the pump core internal rotor interior teeth portion quantity more than one.
3. engine idling start stop system oil pump according to claim 2, which is characterized in that the number of recesses is 8,
The quantity of the pump core internal rotor is 7.
4. engine idling start stop system oil pump according to claim 3, which is characterized in that the pump core outer rotor is equipped with
The external tooth conical surface, the external tooth conical surface are set to the inner wall of the groove, and the pump core internal rotor is equipped with the internal tooth conical surface, the internal tooth
The conical surface is set to the outer wall of the interior teeth portion, and the internal tooth conical surface is aligned from the interior teeth portion to the groove slant.
5. engine idling start stop system oil pump according to claim 4, which is characterized in that the pump core internal rotor is equipped with
Ramp and lower inclined plane, the ramp and the lower inclined plane are respectively arranged at the inner periphery two sides of the pump core internal rotor.
6. engine idling start stop system oil pump according to claim 5, which is characterized in that the taper of the ramp is
30 °~60 °, the taper of the lower inclined plane is 20 °~50 °.
7. engine idling start stop system oil pump according to claim 6, which is characterized in that the taper of the ramp is
45 °, the taper of the lower inclined plane is 30 °.
8. engine idling start stop system oil pump according to claim 7, which is characterized in that the pump housing further comprises
Shell and the first O-ring, the shell are equipped with annular groove, and the annular groove is set to the periphery of the shell, first O-ring
It is installed in the annular groove.
9. engine idling start stop system oil pump according to claim 8, which is characterized in that the rear cover be equipped with bolt,
Second O-ring and inner cavity, described to be bolted the pedestal, the pump housing and rear cover, second O-ring is set to the pump
Between body and the periphery of the rear cover, the pump housing is installed in the inner cavity of the rear cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820817728.7U CN208252250U (en) | 2018-05-29 | 2018-05-29 | A kind of engine idling start stop system oil pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820817728.7U CN208252250U (en) | 2018-05-29 | 2018-05-29 | A kind of engine idling start stop system oil pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208252250U true CN208252250U (en) | 2018-12-18 |
Family
ID=64652359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820817728.7U Active CN208252250U (en) | 2018-05-29 | 2018-05-29 | A kind of engine idling start stop system oil pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208252250U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533431A (en) * | 2018-05-29 | 2018-09-14 | 象山申达轿车配件厂 | A kind of engine idling start stop system oil pump |
| CN110513285A (en) * | 2019-08-28 | 2019-11-29 | 西安法士特汽车传动有限公司 | A kind of double-united oil pump |
-
2018
- 2018-05-29 CN CN201820817728.7U patent/CN208252250U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108533431A (en) * | 2018-05-29 | 2018-09-14 | 象山申达轿车配件厂 | A kind of engine idling start stop system oil pump |
| CN110513285A (en) * | 2019-08-28 | 2019-11-29 | 西安法士特汽车传动有限公司 | A kind of double-united oil pump |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 315700 xinliangting Industrial Development Zone, Daxu Town, Xiangshan City, Ningbo City, Zhejiang Province Patentee after: Xiangshan Shenda car parts Co.,Ltd. Address before: 315700 xinliangting Industrial Development Zone, Daxu Town, Xiangshan City, Ningbo City, Zhejiang Province Patentee before: XIANGSHAN SHENDA CAR ACCESSORY FACTORY |