CN101975185A - Compressor seal structure of small turbocharger - Google Patents
Compressor seal structure of small turbocharger Download PDFInfo
- Publication number
- CN101975185A CN101975185A CN2010105188786A CN201010518878A CN101975185A CN 101975185 A CN101975185 A CN 101975185A CN 2010105188786 A CN2010105188786 A CN 2010105188786A CN 201010518878 A CN201010518878 A CN 201010518878A CN 101975185 A CN101975185 A CN 101975185A
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- stuffing box
- box gland
- annular groove
- seal
- body dish
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Abstract
The invention relates to a compressor seal structure of a small turbocharger. The outer-circle diameter of an oil slinger on a seal sleeve is equal to the outer-circle diameter of a circular disc on a back disc, the outer circle of the circular disc on the back disc is provided with an annular diversion groove of which the cross section is in the shape of a circular arc, and the edge of the diversion groove is an arc-shaped inclined surface. Two seal rings are arranged in a ring groove on the seal sleeve, and the openings of the two seal rings are positioned at an offset angle of 180 degrees and are horizontally arranged in the ring groove on the seal sleeve.
Description
Technical field
The invention 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 small sized turbine supercharger air compressor sealing configuration that the objective of the invention is to overcome the above-mentioned deficiency of prior art and a kind of anti-high negative pressure performance is provided.
Technological scheme of the present invention 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 present invention 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 present invention compared with prior art has following characteristics:
1; sealing configuration provided by the invention 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 invention 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;
Accompanying drawing 2 is a small sized turbine supercharger air compressor sealed structural representation provided by the invention, 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;
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 |
|---|---|---|---|
| CN2010105188786A CN101975185A (en) | 2010-10-21 | 2010-10-21 | Compressor seal structure of small turbocharger |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010105188786A CN101975185A (en) | 2010-10-21 | 2010-10-21 | Compressor seal structure of small turbocharger |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101975185A true CN101975185A (en) | 2011-02-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010105188786A Pending CN101975185A (en) | 2010-10-21 | 2010-10-21 | Compressor seal structure of small turbocharger |
Country Status (1)
| Country | Link |
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| CN (1) | CN101975185A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400944A (en) * | 2011-07-13 | 2012-04-04 | 康跃科技股份有限公司 | Dual-ring sealing device at gas compressor end of turbocharger |
| CN103233911A (en) * | 2013-04-13 | 2013-08-07 | 丹东克隆集团有限责任公司 | Divided-plate ring type sealing deivce |
| CN104594961A (en) * | 2014-04-24 | 2015-05-06 | 宁波摩多汽车零部件有限公司 | Gas compressor end sealing structure of turbocharger |
| CN105093835A (en) * | 2014-05-06 | 2015-11-25 | 沈阳芯源微电子设备有限公司 | Photoresist collecting cup structure for preventing front and back of wafer from being polluted |
| CN106194818A (en) * | 2016-08-31 | 2016-12-07 | 中车大连机车研究所有限公司 | Centrifugal-flow compressor novel pressure side oil-gas seal structure |
| CN110439848A (en) * | 2019-08-07 | 2019-11-12 | 中国北方发动机研究所(天津) | A kind of supercharger air compressor sealing structure |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE750803A (en) * | 1969-05-23 | 1970-11-23 | Caterpillar Tractor Co | GASKET FOR TURBO-COMPRESSOR |
| JPS5720518A (en) * | 1980-07-14 | 1982-02-03 | Aisin Seiki Co Ltd | Turbocharger |
| CN2611612Y (en) * | 2003-03-21 | 2004-04-14 | 洪涛 | Sealing device of vehicle turbosupercharger |
| CN201381896Y (en) * | 2009-02-05 | 2010-01-13 | 南车资阳机车有限公司 | Oil seal structure of turbocharger |
| CN201568568U (en) * | 2009-12-10 | 2010-09-01 | 湖南天雁机械有限责任公司 | Sealing structure at pressure end of turbocharger |
| CN201844022U (en) * | 2010-10-21 | 2011-05-25 | 湖南天雁机械有限责任公司 | Seal structure of compressor of small turbocharger |
-
2010
- 2010-10-21 CN CN2010105188786A patent/CN101975185A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| BE750803A (en) * | 1969-05-23 | 1970-11-23 | Caterpillar Tractor Co | GASKET FOR TURBO-COMPRESSOR |
| JPS5720518A (en) * | 1980-07-14 | 1982-02-03 | Aisin Seiki Co Ltd | Turbocharger |
| CN2611612Y (en) * | 2003-03-21 | 2004-04-14 | 洪涛 | Sealing device of vehicle turbosupercharger |
| CN201381896Y (en) * | 2009-02-05 | 2010-01-13 | 南车资阳机车有限公司 | Oil seal structure of turbocharger |
| CN201568568U (en) * | 2009-12-10 | 2010-09-01 | 湖南天雁机械有限责任公司 | Sealing structure at pressure end of turbocharger |
| CN201844022U (en) * | 2010-10-21 | 2011-05-25 | 湖南天雁机械有限责任公司 | Seal structure of compressor of small turbocharger |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102400944A (en) * | 2011-07-13 | 2012-04-04 | 康跃科技股份有限公司 | Dual-ring sealing device at gas compressor end of turbocharger |
| CN103233911A (en) * | 2013-04-13 | 2013-08-07 | 丹东克隆集团有限责任公司 | Divided-plate ring type sealing deivce |
| CN104594961A (en) * | 2014-04-24 | 2015-05-06 | 宁波摩多汽车零部件有限公司 | Gas compressor end sealing structure of turbocharger |
| CN104594961B (en) * | 2014-04-24 | 2016-06-15 | 宁波摩多汽车零部件有限公司 | The compressor end of a kind of turbocharger seals structure |
| CN105093835A (en) * | 2014-05-06 | 2015-11-25 | 沈阳芯源微电子设备有限公司 | Photoresist collecting cup structure for preventing front and back of wafer from being polluted |
| CN105093835B (en) * | 2014-05-06 | 2019-07-05 | 沈阳芯源微电子设备股份有限公司 | Prevent the photoresist of wafer frontside and back pollution from collecting cup structure |
| CN106194818A (en) * | 2016-08-31 | 2016-12-07 | 中车大连机车研究所有限公司 | Centrifugal-flow compressor novel pressure side oil-gas seal structure |
| CN110439848A (en) * | 2019-08-07 | 2019-11-12 | 中国北方发动机研究所(天津) | A kind of supercharger air compressor sealing structure |
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Application publication date: 20110216 |