CN201844022U - Seal structure of compressor of small turbocharger - Google Patents
Seal structure of compressor of small turbocharger Download PDFInfo
- Publication number
- CN201844022U CN201844022U CN2010205768791U CN201020576879U CN201844022U CN 201844022 U CN201844022 U CN 201844022U CN 2010205768791 U CN2010205768791 U CN 2010205768791U CN 201020576879 U CN201020576879 U CN 201020576879U CN 201844022 U CN201844022 U CN 201844022U
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- China
- Prior art keywords
- stuffing box
- box gland
- disk
- annular groove
- outside diameter
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a seal structure of a compressor of a small turbocharger. The outside diameter of an oil thrower on a seal sleeve is equal to the outside diameter of a circular disk on a back disk, the top circle of the circular disk on the back disk is provided with a circle of diversion groove of which the section is in a circular arc shape, and the edge of the diversion groove is an arc-shaped slope. Two seal rings are arranged in a circular groove on the seal sleeve, and openings of the two seal rings are misplaced by 180 degrees and are horizontally arranged in the circular groove on the seal sleeve.
Description
Technical field
The utility model belongs to engine turbine pressurized machine technical field, relate to a kind of small sized turbine supercharger air compressor end prevents oil leak when air-intake negative-pressure gas compressor sealing configuration, particularly in the plateau section motor car engine during at the lower long slope towing astern, the sealing configuration that prevents oil leak during turbocharger air compressor slow-speed of revolution low-load high negative pressure.
Background technique
Now, diesel engine for automobile has all adopted supercharging technology, and petrol engine is also actively used and promoted, and turbosupercharger becomes the critical component of supercharged engine pressurization system.Along with parameter indexs such as the power performance of user after to the turbocharger matching motor, economic performance, environmental-protecting performance require more and more higher, simultaneously, to the operational safety of turbosupercharger especially pressurized machine leakage of oil problem, caused terminal use's strong interest.
At present, the gas compressor end of small sized turbine pressurized machine prevents oil leak when air-intake negative-pressure gas compressor sealing configuration as shown in Figure 1, lubricant oil enters into the bearing support oil leab from the filler opening of bearing support 1, with the secondary component of each spin friction such as lubricated and cooled rotor, bearing, get back to the fuel tank of motor from the oil outlet of bearing support at last.The gas compressor sealing configuration that prevents oil leak is by back of the body dish 2 and stuffing box gland 3 and seal ring 5 formations, between back of the body dish 2 and the stuffing box gland 3 suitable gap is arranged, seal ring 5 is contained among the annular groove 3-2 of stuffing box gland 3, the periphery tensioner of seal ring 5 is in the axis hole of back of the body dish 2, between the annular groove 3-2 bottom on the endoporus of seal ring 5 and the stuffing box gland 3 suitable gap is arranged, between two sides of annular groove 3-2 on seal ring 5 and the stuffing box gland 3 suitable gap is arranged simultaneously, seal ring 5 is a trip ring in addition, and opening is gapped.When turbocharger operation, axial force is pointed to a certain end, has not just had the gap between the side of the annular groove 3-2 on seal ring 5 and the stuffing box gland 3 at this moment, prevents that to reach lubricant oil from leaking out from the wheel back of the body of compressor impeller 4.But, because motor car engine is through the work under the variable working condition of being everlasting, axial force during turbocharger operation is also corresponding to change sensing continually, just form the gap at this moment between the annular groove 3-2 side on seal ring 5 and the stuffing box gland 3 often, especially when engine section load or low-load work, particularly in the plateau section a kind of motor car engine when the lower long slope towing astern, turbocharger air compressor is just worked when slow-speed of revolution low-load high negative pressure, at this moment, lubricant oil will be easy to leak out from the wheel back of the body of compressor impeller.
In addition; since on the back of the body dish 2 on the end face of disk 2-1 and the stuffing box gland 3 end face of disc 3-1 be close together; on the disk 2-1 cylindrical on the back of the body dish 2 guiding gutter is not set; when stuffing box gland disc 3-1 when high speed rotating is worked; after throwing away, the lubricant oil that powerful centrifugal force will be located reflects back again on the disk 2-1 cylindrical on the back of the body dish 2; turbosupercharger is also stopped the rotation subsequently when engine cut-off; at this moment; just there is more lubricant oil to accumulate at this; this lubricant oil accumulates in will slowly leak into annular groove 3-2 on the stuffing box gland 3; when turbosupercharger is worked once more; especially repeatedly shut down repeatedly when working again when turbosupercharger; add that motor car engine is in most cases when sub load or low-load work; particularly in the plateau section a kind of motor car engine when the lower long slope towing astern; turbocharger air compressor is worked when slow-speed of revolution low-load high negative pressure, and at this moment, lubricant oil also will be easy to leak out from the wheel back of the body of compressor impeller.
In the annular groove 3-2 on the stuffing box gland 3 seal ring 5 only is housed besides, lubricant oil also is easy to leak out from the opening of seal ring.
Summary of the invention
The purpose of this utility model is to overcome the above-mentioned deficiency of prior art and small sized turbine supercharger air compressor sealing configuration that a kind of anti-high negative pressure performance is provided.
The technical solution of the utility model is: a kind of small sized turbine supercharger air compressor sealing configuration, disc outside diameter on the stuffing box gland equates with disk outside diameter on the back of the body dish, be provided with the guiding gutter that a ring cross-section is circular arc on the disk cylindrical on the back of the body dish, the edge of guiding gutter is a curve slope.
The further technological scheme of the utility model is: be provided with two seal rings in the annular groove on stuffing box gland, the opening of two seal rings dislocation 180 degree and being horizontally set in the annular groove on the stuffing box gland.
The utility model compared with prior art has following characteristics:
1; the sealing configuration that the utility model provides is owing to be provided with a circle guiding gutter on the disk cylindrical of back of the body dish; disc outside diameter on the stuffing box gland equates with disk outside diameter on the back of the body dish; when disc when high speed rotating is worked; after throwing away, the lubricant oil that powerful centrifugal force will be located reflects back again in the guiding gutter on the back of the body dish; no matter turbosupercharger is in work or the outage state; accumulate the oil outlet that will flow to bearing support by the guiding gutter on the back of the body dish and get back in the fuel tank of motor, thereby prevent that lubricant oil from leaking out by the wheel back of the body of the gap between back of the body dish and stuffing box gland and the seal ring from compressor impeller at this lubricant oil.
2, owing to be provided with two seal rings in the annular groove on the stuffing box gland, the opening dislocation 180 of two seal rings is spent and is horizontally set in the annular groove of stuffing box gland, the opened gap of seal ring is repeatedly sealed, and make this place's sealing configuration form the multiple tracks labyrinth, thereby prevent that effectively lubricant oil from leaking out by the wheel back of the body of the gap between back of the body dish and stuffing box gland and the seal ring from compressor impeller.
Below in conjunction with the drawings and specific embodiments detailed structure of the present utility model is further described.
Description of drawings
Accompanying drawing 1 is existing small sized turbine supercharger air compressor sealed structural representation, and P1 is an air intlet among the figure, and P2 is an air outlet slit, and P3 is a lubricating oil inlet, and P4 is a lubricating oil outlet;
The small sized turbine supercharger air compressor sealed structural representation that accompanying drawing 2 provides for the utility model, P1 is an air intlet among the figure, and P2 is an air outlet slit, and P3 is a lubricating oil inlet, and P4 is a lubricating oil outlet;
Accompanying drawing 3 is the A portion enlarged view in the accompanying drawing 1;
Accompanying drawing 4 is the B portion enlarged view in the accompanying drawing 2.
Embodiment
A kind of small sized turbine supercharger air compressor sealing configuration, disc 3-1 outside diameter on the stuffing box gland 3 equates with disk 2-1 outside diameter on the back of the body dish 2, be provided with the guiding gutter 2-1-1 that a ring cross-section is circular arc on the disk 2-1 of back of the body dish 2 cylindrical, the edge of guiding gutter 2-1-1 is a curve slope.Be provided with opening dislocation 180 degree of 5, two seal rings 5 of two seal rings in the annular groove 3-2 on stuffing box gland 3 and be horizontally set in the annular groove 3-2 on the stuffing box gland 3.
Claims (2)
1. small sized turbine supercharger air compressor sealing configuration, it is characterized in that: the disc outside diameter on the stuffing box gland equates with disk outside diameter on the back of the body dish, be provided with the guiding gutter that a ring cross-section is circular arc on the disk cylindrical on the back of the body dish, the edge of guiding gutter is a curve slope.
2. a kind of small sized turbine supercharger air compressor sealing configuration according to claim 1 is characterized in that: be provided with two seal rings in the annular groove on stuffing box gland, the opening of two seal rings dislocation 180 degree and being horizontally set in the annular groove on the stuffing box gland.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205768791U CN201844022U (en) | 2010-10-21 | 2010-10-21 | Seal structure of compressor of small turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205768791U CN201844022U (en) | 2010-10-21 | 2010-10-21 | Seal structure of compressor of small turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201844022U true CN201844022U (en) | 2011-05-25 |
Family
ID=44038914
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205768791U Expired - Fee Related CN201844022U (en) | 2010-10-21 | 2010-10-21 | Seal structure of compressor of small turbocharger |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201844022U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975185A (en) * | 2010-10-21 | 2011-02-16 | 湖南天雁机械有限责任公司 | Compressor seal structure of small turbocharger |
| CN102926824B (en) * | 2012-11-15 | 2017-03-22 | 湖南天雁机械有限责任公司 | Gas compressor end sealing structure of turbocharger |
-
2010
- 2010-10-21 CN CN2010205768791U patent/CN201844022U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101975185A (en) * | 2010-10-21 | 2011-02-16 | 湖南天雁机械有限责任公司 | Compressor seal structure of small turbocharger |
| CN102926824B (en) * | 2012-11-15 | 2017-03-22 | 湖南天雁机械有限责任公司 | Gas compressor end sealing structure of 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: 20110525 Termination date: 20191021 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |