CN102270893A - Oil return structure of power generator provided with vacuum pump - Google Patents
Oil return structure of power generator provided with vacuum pump Download PDFInfo
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- CN102270893A CN102270893A CN201110189943XA CN201110189943A CN102270893A CN 102270893 A CN102270893 A CN 102270893A CN 201110189943X A CN201110189943X A CN 201110189943XA CN 201110189943 A CN201110189943 A CN 201110189943A CN 102270893 A CN102270893 A CN 102270893A
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- Prior art keywords
- oil return
- vacuum pump
- generator
- oil
- power generator
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- 238000007789 sealing Methods 0.000 claims abstract description 16
- 239000003921 oil Substances 0.000 abstract description 73
- 239000010687 lubricating oil Substances 0.000 abstract description 22
- 238000007599 discharging Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 230000032683 aging Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
The invention discloses an oil return structure of a power generator provided with a vacuum pump. The oil return structure can return lubricating oil leaking into the closed cavity of the power generator back to an oil pan in time, prevent the lubricating oil from leaking into the power generator from the vacuum pump, and further prevent the power generator from being damaged. The oil return structure of the power generator provided with the vacuum pump comprises the power generator and the vacuum pump, wherein the rotating shaft of the power generator and the rotating shaft of the vacuum pump are coaxial or connected through a spline structure, an oil seal is arranged at the rotating shaft of the power generator, the vacuum pump is provided with a vacuum pump oil return pipe, a cavity is arranged outside the oil seal at the rotating shaft of the power generator, an oil return hole communicated to the outside of a shell of the power generator is connected at the bottom of the cavity, and the oil return hole is connected with the oil return pipe of the power generator. As for the oil return structure, the cavity and the oil return hole are arranged inside the power generator, thus the lubricating oil leaking into the power generator from the vacuum pump can be discharged in time, and further the impact force applied to the oil seal by the lubricating oil is reduced; meanwhile, the sealing capability of the power generator is improved, and damage of the power generator caused by leakage of the lubricating oil is avoided.
Description
Technical field
The invention belongs to field of automobile, specially refer to the oil return structure of the generator of the used band vacuum pump of automobile engine.
Background technology
The generator that at present a lot of automobile engines are equipped with has had vacuum pump, produces vacuum to be used to equipment such as master cylinder on the car or clutch master cylinder.The part that the generator of most of at present band vacuum pump mainly comes seal vacuum pump to be connected with generator by oil sealing, after through long-time the use, this structure is easily because aging former of oil sealing thereby cause oil seepage in the vacuum pump in generator, and then cause generator to scrap, bring inconvenience and economically loss in the use to the car owner.
Summary of the invention
The objective of the invention is to propose a kind of oil return structure of the generator with vacuum pump, thereby the lubricating oil that will scurry the generator annular seal space in time is back to oil sump, prevents that lubricating oil from leaking into the generator from vacuum pump, causes generator to damage.
The oil return structure of the generator of band vacuum pump of the present invention comprises generator and vacuum pump, the rotating shaft of described generator is coaxial with the rotating shaft of vacuum pump or be connected by spline structure, rotating shaft place of generator is provided with oil sealing, described vacuum pump is provided with the vacuum pump oil return pipe, key is that the oil sealing arranged outside of described alternator shaft has a cavity, the bottom of described cavity is connected with an oil return opening that leads to the generator body external body, and described oil return opening is connected with a generator oil return pipe.
When lubricating oil is in vacuum pump is scurried into generator, at first can under the stopping of oil sealing, converge in the described cavity, can be discharged to the generator body external body along oil return opening and generator oil return pipe then, reduced the impulsive force of the suffered lubricating oil of oil sealing, improved the generator sealability simultaneously, avoided generator to damage because of entering of lubricating oil.
Further, described generator oil return pipe links to each other with the vacuum pump oil return pipe, can the lubricating oil in the cavity be discharged by original vacuum pump oil return pipe and corresponding oil return apparatus like this, and whole oil return is simplified the structure, and reduces cost simultaneously.
Further, the position of described oil return opening is higher than the height of the joint of generator oil return pipe and vacuum pump oil return pipe, with the convenient lubricating oil that converges in the cavity of discharging.
Further, described vacuum pump oil return pipe communicates with the oil sump of engine, with the convenient lubricating oil of discharging that reclaims, avoids waste.
Further, described generator oil return pipe links to each other by a flexible pipe with the vacuum pump oil return pipe, and flexible pipe has the effect of absorbing, can prevent to cause generator oil return pipe and vacuum pump oil return pipe to break away from because of the generator vibration.
Further, described cavity is to be made of described oil sealing, generator housing, the diaphragm seal that is arranged on the alternator shaft, has so just formed dual-seal, thereby has reduced the amount that enters into the lubricating oil in the cavity.
Further, the cross section of described cavity bottom is a funnel-form, and described oil return opening is positioned at the lowermost end of cavity, to reduce lubricating oil residual in cavity as far as possible.
The oil return structure of the generator of band vacuum pump of the present invention is by being provided with cavity and oil return opening in generator inside, the feasible lubricating oil of scurrying in the generator from vacuum pump can in time be discharged, thereby reduced the impulsive force of the suffered lubricating oil of oil sealing, improved the generator sealability simultaneously, avoided generator to damage because of entering of lubricating oil.
Description of drawings
Fig. 1 is the external view of oil return structure of the generator of band vacuum pump of the present invention.
Fig. 2 is the cutaway view of oil return structure of the generator of band vacuum pump of the present invention.
Embodiment
Contrast accompanying drawing below, by description, the effect of the mutual alignment between the shape of the specific embodiment of the present invention such as related each member, structure, the each several part and annexation, each several part and operation principle etc. are described in further detail embodiment.
Embodiment 1:
As Fig. 1, shown in 2, present embodiment is applied on the automobile engine, the oil return structure of the generator of the band vacuum pump of present embodiment comprises generator 1 and vacuum pump 2, the rotating shaft of generator 1 is connected by spline structure with the rotating shaft of vacuum pump 2, vacuum pump 2 is provided with vacuum pump oil return pipe 3, rotating shaft place of generator 1 is provided with oil sealing 4 and diaphragm seal 5, oil sealing 4, generator 1 housing, diaphragm seal 5 constitutes a cavity 6, the bottom of cavity 6 is connected with an oil return opening 7 that leads to generator 1 outside, oil return opening 7 is connected with a generator oil return pipe 8, generator oil return pipe 8 links to each other with vacuum pump oil return pipe 3 by a flexible pipe 9, vacuum pump oil return pipe 3 communicate with the oil sump of engine (oil sump does not draw among the figure).
The position of oil return opening 7 is higher than the height of the joint 10 of generator oil return pipe and vacuum pump oil return pipe, with the convenient lubricating oil that converges in the cavity 6 of discharging.
When lubricating oil is in vacuum pump 2 is scurried into generator 1, at first can under the stopping of oil sealing 4, converge in the described cavity 6, can be discharged to the oil sump place of engine then along oil return opening 7, generator oil return pipe 8, flexible pipe 9, vacuum pump oil return pipe 3, reduced the impulsive force of oil sealing 4 suffered lubricating oil, improved the generator sealability simultaneously, avoided generator to damage because of entering of lubricating oil.
Claims (7)
1. oil return structure with the generator of vacuum pump, comprise generator and vacuum pump, the rotating shaft of described generator is coaxial with the rotating shaft of vacuum pump or be connected by spline structure, rotating shaft place of generator is provided with oil sealing, described vacuum pump is provided with the vacuum pump oil return pipe, the oil sealing arranged outside that it is characterized in that described alternator shaft has a cavity, and the bottom of described cavity is connected with an oil return opening that leads to the generator body external body, and described oil return opening is connected with a generator oil return pipe.
2. the oil return structure of the generator of band vacuum pump according to claim 1 is characterized in that described generator oil return pipe links to each other with the vacuum pump oil return pipe.
3. the oil return structure of the generator of band vacuum pump according to claim 2 is characterized in that the position of described oil return opening is higher than the height of the joint of generator oil return pipe and vacuum pump oil return pipe.
4. the oil return structure of the generator of band vacuum pump according to claim 2 is characterized in that described vacuum pump oil return pipe communicates with the oil sump of engine.
5. the oil return structure of the generator of band vacuum pump according to claim 2 is characterized in that described generator oil return pipe links to each other by a flexible pipe with the vacuum pump oil return pipe.
6. according to claim 1 or 2 or 3 or the oil return structure of the generator of 4 or 5 described band vacuum pumps, it is characterized in that described cavity is to be made of described oil sealing, generator housing, the diaphragm seal that is arranged on the alternator shaft.
7. according to claim 1 or 2 or 3 or the oil return structure of the generator of 4 or 5 described band vacuum pumps, the cross section that it is characterized in that described cavity bottom is a funnel-form, and described oil return opening is positioned at the lowermost end of cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189943XA CN102270893A (en) | 2011-07-08 | 2011-07-08 | Oil return structure of power generator provided with vacuum pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110189943XA CN102270893A (en) | 2011-07-08 | 2011-07-08 | Oil return structure of power generator provided with vacuum pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102270893A true CN102270893A (en) | 2011-12-07 |
Family
ID=45053088
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110189943XA Pending CN102270893A (en) | 2011-07-08 | 2011-07-08 | Oil return structure of power generator provided with vacuum pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102270893A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60249680A (en) * | 1984-05-24 | 1985-12-10 | Nippon Denso Co Ltd | Ac generator with vacuum pump |
| JPS63129829A (en) * | 1986-11-14 | 1988-06-02 | Nippon Denso Co Ltd | Generator with vacuum pump |
| US5105685A (en) * | 1990-06-08 | 1992-04-21 | Mitsuba Electric Manufacturing Co., Ltd. | Oil-sealing structure of motor |
| CN2134748Y (en) * | 1992-09-11 | 1993-05-26 | 叶文安 | Advanced oil leakage-proof means for hydrogen cooling electrical generator |
| CN2373329Y (en) * | 1999-05-23 | 2000-04-12 | 王振民 | Vehicle vacuum pump |
| CN2532276Y (en) * | 2001-10-12 | 2003-01-22 | 常玲琪 | High-speed slide piece vacuum pump |
| CN2588061Y (en) * | 2002-12-10 | 2003-11-26 | 山东时风（集团）有限责任公司 | Single cylinder diesel engine with vacuum force boosting souce for vehicle |
| JP3517519B2 (en) * | 1996-06-21 | 2004-04-12 | 株式会社日立製作所 | Vacuum pump |
-
2011
- 2011-07-08 CN CN201110189943XA patent/CN102270893A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60249680A (en) * | 1984-05-24 | 1985-12-10 | Nippon Denso Co Ltd | Ac generator with vacuum pump |
| JPS63129829A (en) * | 1986-11-14 | 1988-06-02 | Nippon Denso Co Ltd | Generator with vacuum pump |
| US5105685A (en) * | 1990-06-08 | 1992-04-21 | Mitsuba Electric Manufacturing Co., Ltd. | Oil-sealing structure of motor |
| CN2134748Y (en) * | 1992-09-11 | 1993-05-26 | 叶文安 | Advanced oil leakage-proof means for hydrogen cooling electrical generator |
| JP3517519B2 (en) * | 1996-06-21 | 2004-04-12 | 株式会社日立製作所 | Vacuum pump |
| CN2373329Y (en) * | 1999-05-23 | 2000-04-12 | 王振民 | Vehicle vacuum pump |
| CN2532276Y (en) * | 2001-10-12 | 2003-01-22 | 常玲琪 | High-speed slide piece vacuum pump |
| CN2588061Y (en) * | 2002-12-10 | 2003-11-26 | 山东时风（集团）有限责任公司 | Single cylinder diesel engine with vacuum force boosting souce for vehicle |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C12 | Rejection of a patent application after its publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20111207 |