CN202707233U - Internal-combustion engine supercharger oil return structure - Google Patents
Internal-combustion engine supercharger oil return structure Download PDFInfo
- Publication number
- CN202707233U CN202707233U CN 201220335300 CN201220335300U CN202707233U CN 202707233 U CN202707233 U CN 202707233U CN 201220335300 CN201220335300 CN 201220335300 CN 201220335300 U CN201220335300 U CN 201220335300U CN 202707233 U CN202707233 U CN 202707233U
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- oil return
- internal
- oil
- combustion engine
- supercharger
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- 238000002485 combustion reaction Methods 0.000 title claims abstract description 29
- 230000029058 respiratory gaseous exchange Effects 0.000 claims description 16
- 230000005484 gravity Effects 0.000 abstract description 5
- 238000005461 lubrication Methods 0.000 abstract description 4
- 239000007788 liquid Substances 0.000 abstract description 3
- 239000003921 oil Substances 0.000 description 33
- 239000000314 lubricant Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 1
- 230000008676 import Effects 0.000 description 1
- 239000010687 lubricating oil Substances 0.000 description 1
- 239000010721 machine oil Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Lubrication Details And Ventilation Of Internal Combustion Engines (AREA)
Abstract
The utility model provides an internal-combustion engine supercharger oil return structure which solves the problems that in a plurality of internal-combustion engines, particularly horizontal type internal-combustion engines, because of limitation of the space of an engine compartment of a whole automobile, the trend of a turbocharger oil return pipe assembly cannot keep downward, or an oil return opening of the turbocharger oil return pipe cannot be arranged above the liquid level of lubrication oil of an oil sump, the design requirements of gravity oil return of a turbocharger on the turbocharger oil return pipe assembly cannot be satisfied and the like, and accordingly smooth oil return of the turbocharger is guaranteed. The principle of the internal-combustion engine supercharger oil return structure is that a middle body of an internal-combustion engine supercharger is communicated with an oil sump through an oil return pipe, and the key point is that the oil return pipe is communicated with a negative pressure generating device through a breather pipe. Negative pressure generated by the negative pressure generating device can be used for lowering the air pressure inside the supercharger oil return pipe, so that the fact that the pressure inside the supercharger oil return pipe increased because of unsmooth flow of the lubrication oil inside a pipeline and oil return of the middle body of the supercharger is affected is avoided.
Description
Technical field
The utility model belongs to motor car engine manufacturing technology field, specially refers to a kind of internal-combustion engine booster oil-returning structure.
Background technique
Internal-combustion engine booster return tube assembly is used for the turbocharger lubricating oil oil return, and the one end links to each other with turbocharger middle body oil return flange by flange, and the other end connects crank case of internal combustion engine or oil sump.The lubricant oil of turbocharger middle body mainly by the gravity oil return, flows back in the sump for internal combustion engine by turbosupercharger return tube assembly.The gravity oil return requires turbosupercharger return tube assembly trend to want continuously downwards, and the return tube return opening need to be arranged in more than the sump for internal combustion engine liquid level, otherwise will affect the turbocharger middle body oil return, make the turbosupercharger oil return not smooth, and cause turbosupercharger from turbo machine and the leakage of oil of gas compressor both sides, produce turbocharger failure.
Summary of the invention
The purpose of this utility model is to propose a kind of internal-combustion engine booster oil-returning structure, with solve the part internal-combustion engine particularly horizontal engine because car load engine compartment space problem, turbosupercharger return tube assembly trend can't be downward continuously, perhaps the oil return pipe of supercharger return opening can't be arranged in more than the sump lubrication oil level, can not satisfy the oil return of turbosupercharger gravity to the problems such as designing requirement of turbosupercharger return tube assembly, guarantee that the turbosupercharger oil return is smooth and easy.
Internal-combustion engine booster oil-returning structure principle of the present utility model is as follows: the intermediate of internal-combustion engine booster communicates with oil sump by return tube, and key is that described return tube communicates with a negative pressure generating device by a breathing pipe.
The negative pressure of utilizing negative pressure generating device to produce can reduce the air pressure in the oil return pipe of supercharger, to keep oil return pipe of supercharger not because lubricant oil circulation in the pipeline does not freely cause pressure to raise, affects the booster intermediate body oil return.
Further, described negative pressure generating device is the suction tude of the gas compressor of described internal-combustion engine booster, so just need not negative pressure generating device additionally is set, and provides cost savings, and also more saves institute and takes up space, the convenient layout.
Described breathing pipe becomes skewed with the joint of return tube, and the breathing pipe direction of joint is higher than the return tube direction, can prevent that like this lubricant oil from entering in the breathing pipe, affects normal oil return.
The joint rounding off of described breathing pipe and return tube can reduce the loss of velocity of air-flow like this, in the situation that the gas compressor low-power operation still can guarantee normal oil return.
Internal-combustion engine booster oil-returning structure of the present utility model is under the condition that only increases a breathing pipe, solved the part internal-combustion engine particularly horizontal engine because car load engine compartment space problem, turbosupercharger return tube assembly trend can't be downward continuously, perhaps the oil return pipe of supercharger return opening can't be arranged in more than the sump lubrication oil level, can not satisfy the oil return of turbosupercharger gravity to the problems such as designing requirement of turbosupercharger return tube assembly, can guarantee that the turbosupercharger oil return is smooth and easy, have good practicability.
Description of drawings
Fig. 1 is the structural representation of internal-combustion engine booster oil-returning structure of the present utility model.
Embodiment
The below contrasts accompanying drawing, by the description to embodiment, the effect of the mutual alignment between the shape of embodiment of the present utility model such as related each member, structure, the each several part and annexation, each several part and working principle etc. are described in further detail.
Embodiment 1:
As shown in Figure 1, the internal-combustion engine booster oil-returning structure principle of the present embodiment is as follows: the intermediate 11 of internal-combustion engine booster 1 communicates with oil sump 3 by return tube 2, and return tube 2 communicates by the suction tude 121 of a breathing pipe 4 with the gas compressor 12 of internal-combustion engine booster 1.
Negative pressure in the 121 interior generations of compressor air inlet machine pipe when breathing pipe 4 can turn round turbosupercharger imports return tube 2, reduce the air pressure in the return tube 2, thereby keep the oil return of intermediate 11 common, can avoid moving towards tortuous or can not keeping continuing downward because of return tube 2, the air pressure that perhaps is connected in the return tube 2 that causes below the oil sump 3 machine oil liquid levels raises, cause the oil return of booster intermediate body 11 not smooth, cause the turbosupercharger leakage of oil, produce fault.
Joint 5 rounding ofves of breathing pipe 4 and return tube 2 can reduce the loss of velocity of air-flow, like this in the situation that the gas compressor low-power operation still can guarantee normal oil return.
Claims (4)
1. internal-combustion engine booster oil-returning structure, the intermediate of internal-combustion engine booster communicates with oil sump by return tube, it is characterized in that described return tube communicates with a negative pressure generating device by a breathing pipe.
2. internal-combustion engine booster oil-returning structure according to claim 1 is characterized in that described negative pressure generating device is the suction tude of the gas compressor of described internal-combustion engine booster.
3. internal-combustion engine booster oil-returning structure according to claim 1 and 2 it is characterized in that described breathing pipe becomes skewed with the joint of return tube, and the breathing pipe direction of joint is higher than the return tube direction.
4. internal-combustion engine booster oil-returning structure according to claim 3 is characterized in that the joint rounding off of described breathing pipe and return tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335300 CN202707233U (en) | 2012-07-12 | 2012-07-12 | Internal-combustion engine supercharger oil return structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220335300 CN202707233U (en) | 2012-07-12 | 2012-07-12 | Internal-combustion engine supercharger oil return structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202707233U true CN202707233U (en) | 2013-01-30 |
Family
ID=47587542
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220335300 Expired - Fee Related CN202707233U (en) | 2012-07-12 | 2012-07-12 | Internal-combustion engine supercharger oil return structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202707233U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837471A (en) * | 2017-03-23 | 2017-06-13 | 吉林大学 | Engine oil recycling device in a kind of turbocharger of motor blower outlet gas |
| CN114033588A (en) * | 2021-11-02 | 2022-02-11 | 潍坊科技学院 | Compressor integrated heat exchange device of supercharger for respirator closed cycle engine |
-
2012
- 2012-07-12 CN CN 201220335300 patent/CN202707233U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106837471A (en) * | 2017-03-23 | 2017-06-13 | 吉林大学 | Engine oil recycling device in a kind of turbocharger of motor blower outlet gas |
| CN106837471B (en) * | 2017-03-23 | 2022-11-08 | 吉林大学 | Engine oil recovery device in gas at compressor outlet of engine turbocharger |
| CN114033588A (en) * | 2021-11-02 | 2022-02-11 | 潍坊科技学院 | Compressor integrated heat exchange device of supercharger for respirator closed cycle engine |
| CN114033588B (en) * | 2021-11-02 | 2023-02-28 | 潍坊科技学院 | Compressor integrated heat exchange device of supercharger for respirator closed cycle engine |
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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 |
Granted publication date: 20130130 Termination date: 20150712 |
|
| EXPY | Termination of patent right or utility model |