CN202441885U - Sealing device for compressor end of turbocharger - Google Patents
Sealing device for compressor end of turbocharger Download PDFInfo
- Publication number
- CN202441885U CN202441885U CN201220023593XU CN201220023593U CN202441885U CN 202441885 U CN202441885 U CN 202441885U CN 201220023593X U CN201220023593X U CN 201220023593XU CN 201220023593 U CN201220023593 U CN 201220023593U CN 202441885 U CN202441885 U CN 202441885U
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- CN
- China
- Prior art keywords
- sealing
- cover plate
- utility
- thrust bearing
- stuffing box
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a sealing device for a compressor end of a turbocharger. The sealing device comprises an intermediate body, a sealing sleeve, a sealing cover plate and a thrust bearing; an oil cavity is jointly formed by the intermediate body, the sealing sleeve, the sealing cover plate and the thrust bearing; a sealing ring and an elastic stopping ring for a hole are arranged between the sealing cover plate and the intermediate body; the sealing ring is arranged between the sealing cover plate and the sealing sleeve; an annular lug boss is arranged on the sealing sleeve; the sealing cover plate is abutted against an end face of the annular lug boss; and an inclined face is arranged at the side of the sealing cover plate on the annular lug boss. The sealing device provided by the utility model is reasonable in structural design, prevents leakage to an air compressor end, has good sealing effect, solves the problem of wear-out failure of the thrust bearing, and reduces the fault rate of the turbocharger.
Description
Technical field
The utility model relates to a kind of turbosupercharger, relates in particular to a kind of end sealing device for compressor of turbosupercharger.
Background technique
Get into 21 century, international automobile-used Study on Technology target and emphasis trend towards energy-saving and emission-reduction and emission control is laid equal stress on; Further improve the diesel engine power per liter, dwindle discharge capacity through supercharging technology, become the emphasis of engine performance research and the focus of the mobile thermodynamic study of internal-combustion engine, adopt the boosting internal combustion engine of turbocharging technology to develop towards the direction of high pressure-charging; Because getting into after the exhaust gas recirculation in the cylinder is the mixed gas of waste gas and fresh air, wherein oxygen concentration is low than air, for the power that guarantees motor constant; The mixed gas total amount that gets into motor must be greater than the total amount of original air, to guarantee that wherein the total amount of oxygen is constant, therefore; Adopt after the exhaust gas recirculation, need bigger pressure ratio, burning is provided in order to guarantee enough oxygen to obtain higher air inflow; The pressure ratio of supercharging also improves constantly accordingly; Need the turbosupercharger of development high pressure ratio, the oil pressure of high pressure ratio turbosupercharger intermediate is higher, in use occurs the problem of gas compressor side leakage oil easily; At present; The sealing problem of turbosupercharger is still a weak link of turbosupercharger, and how therefore the leakage of lubricant oil avoid oil leak to become the problem of current concern when mainly showing the pressurized machine running.
The model utility content
The technical problem that the utility model solved is to provide a kind of end sealing device for compressor of turbosupercharger, and good sealing effect can effectively be avoided oil leak.
The technological scheme of the technical problem that the utility model solved is: a kind of end sealing device for compressor of turbosupercharger; Comprise intermediate, stuffing box gland, sealed cover and thrust bearing; The common oil pocket that forms between intermediate, stuffing box gland, sealed cover and the thrust bearing; Be provided with seal ring and circlip for hole between sealed cover and the intermediate, be provided with seal ring between sealed cover and the stuffing box gland.
As optimized technical scheme, stuffing box gland is provided with annular projection, and the end face of sealed cover and annular projection offsets.
As optimized technical scheme, be provided with the inclined-plane in the sealed cover side on the annular projection.
Because adopted the end sealing device for compressor of turbosupercharger of technique scheme, oil pocket is shut by seal ring and seal ring to the clearance channel of gas compressor end, has stopped the leakage of lubricant oil to the gas compressor end.
Because annular projection is arranged on stuffing box gland; Stuffing box gland is designed to have chimb and the inclined-plane on inclined-plane towards thrust bearing, and under the pressurized machine working state, stuffing box gland rotates with turbine shaft; Under action of centrifugal force, can the lubricant oil at stuffing box gland place be got rid of the axial thrust bearing place; Avoid lubricant oil to splash on the sealed cover and flow down along sidewall, the axial clearance of stuffing box gland and sealed cover is less simultaneously, to reduce the lubricant oil at seal ring place; Thereby guarantee the sealing effect of seal ring, solved the problem of gas compressor end leakage of oil.
This model utility is simple in structure, prevents the leakage to the gas compressor end, and good sealing effect has solved the thrust bearing wear failure problem, has reduced the turbocharger failure rate.
Description of drawings
Fig. 1 is the structural representation of the utility model end sealing device for compressor of turbosupercharger;
Among the figure: 1. intermediate, 2. thrust bearing, 3. stuffing box gland, 4. sealed cover, 5. oil pocket, 6. seal ring, 7. circlip for hole, 8. seal ring, 9. annular projection, 10. lubricant oil oil inlet hole, 11. lubricating oil return holes.
Embodiment
Below in conjunction with accompanying drawing and embodiment, further set forth the utility model, should be understood that these embodiments only be used to the utility model is described and be not used in the restriction the utility model scope.Should be understood that in addition those skilled in the art can do various changes or modification to the utility model after the content of having read the utility model instruction, these equivalent form of values fall within the application's appended claims institute restricted portion equally.
As shown in Figure 1, a kind of end sealing device for compressor of turbosupercharger comprises intermediate 1, stuffing box gland 3, sealed cover 4 and thrust bearing 2; The cavity that surrounds jointly between intermediate 1, stuffing box gland 3, sealed cover 4 and the thrust bearing 2 then forms oil pocket 5, is provided with seal ring 6 and circlip for hole 7 between sealed cover 4 and the intermediate 1, is provided with seal ring 8 between sealed cover 4 and the stuffing box gland 3; Stuffing box gland 3 is provided with annular projection 9; Because of stuffing box gland 3 rotates on turbine shaft, then annular projection 9 is followed rotation, and sealed cover 4 offsets with the end face of annular projection 9; Leave rotary gap, be provided with the inclined-plane in sealed cover 4 sides on the annular projection 9.
Owing to adopted the end sealing device for compressor of turbosupercharger of technique scheme, lubricant oil gets into from lubricant oil oil inlet hole 10, and thrust bearing 2 is played lubrication; The clearance channel of leading to the gas compressor end because of the lubricant oil in the oil pocket 5 is shut by seal ring 6 and seal ring 8, has prevented the leakage of lubricant oil to the gas compressor end, and annular projection 9 is arranged on stuffing box gland 3 simultaneously; Because annular projection 9 is arranged on stuffing box gland 3; Stuffing box gland 3 is designed to have chimb and the inclined-plane on inclined-plane towards thrust bearing 2, and under the pressurized machine working state, stuffing box gland 3 rotates with turbine shaft; Under action of centrifugal force, can the lubricant oil at stuffing box gland 3 places be got rid of axial thrust bearing 2 places; Avoid lubricant oil to splash on the sealed cover 4 and flow down along sidewall, stuffing box gland 3 is less with the axial clearance of sealed cover 4 simultaneously, to reduce the lubricant oil at seal ring 8 places; Thereby guarantee the sealing effect of seal ring 8; Solved the problem of gas compressor end leakage of oil, annular projection 9 has changed the nowed forming of lubricant oil, effectively guides lubricant oil to be incorporated in the lubricating oil return hole 11.This model utility is simple in structure, can effectively avoid oil leak, has protected the equipment normal operation.
More than show and described the advantage of basic principle, major character and the utility model of the utility model.
The technician of the industry should understand; The utility model is not restricted to the described embodiments; The principle of describing in the foregoing description and the specification that the utility model just is described; Under the prerequisite that does not break away from the utility model spirit and scope, the utility model also has various changes and modifications, and these variations and improvement all fall in the utility model scope that requires protection.The utility model requires protection domain to be defined by appending claims and equivalent thereof.
All are from the design of the utility model, and the structure conversion of having done without creative work all drops within the utility model protection domain.
Claims (3)
1. end sealing device for compressor of turbosupercharger; Comprise intermediate, stuffing box gland, sealed cover and thrust bearing; The common oil pocket that forms between said intermediate, stuffing box gland, sealed cover and the thrust bearing; It is characterized in that: be provided with seal ring and circlip for hole between said sealed cover and the said intermediate, be provided with seal ring between said sealed cover and the said stuffing box gland.
2. end sealing device for compressor of turbosupercharger according to claim 1 is characterized in that: said stuffing box gland is provided with annular projection, and the end face of said sealed cover and said annular projection offsets.
3. end sealing device for compressor of turbosupercharger according to claim 2 is characterized in that: be provided with the inclined-plane in said sealed cover side on the said annular projection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220023593XU CN202441885U (en) | 2012-01-18 | 2012-01-18 | Sealing device for compressor end of turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201220023593XU CN202441885U (en) | 2012-01-18 | 2012-01-18 | Sealing device for compressor end of turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202441885U true CN202441885U (en) | 2012-09-19 |
Family
ID=46823337
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201220023593XU Expired - Fee Related CN202441885U (en) | 2012-01-18 | 2012-01-18 | Sealing device for compressor end of turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202441885U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794981A (en) * | 2019-04-03 | 2020-10-20 | 通用汽车环球科技运作有限责任公司 | Multi-step inner hole turbocharger |
-
2012
- 2012-01-18 CN CN201220023593XU patent/CN202441885U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111794981A (en) * | 2019-04-03 | 2020-10-20 | 通用汽车环球科技运作有限责任公司 | Multi-step inner hole turbocharger |
| CN111794981B (en) * | 2019-04-03 | 2021-07-09 | 通用汽车环球科技运作有限责任公司 | Multi-step inner hole turbocharger |
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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: 20120919 Termination date: 20150118 |
|
| EXPY | Termination of patent right or utility model |