CN101975185A - Compressor seal structure of small turbocharger - Google Patents

Compressor seal structure of small turbocharger Download PDF

Info

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
Authority
CN
China
Prior art keywords
stuffing box
box gland
annular groove
seal
body dish
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.)
Pending
Application number
CN2010105188786A
Other languages
Chinese (zh)
Inventor
邓茅桥
王一棣
胡辽平
廖云
张爱明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hunan Tianyan Machinery Co Ltd
Original Assignee
Hunan Tianyan Machinery Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hunan Tianyan Machinery Co Ltd filed Critical Hunan Tianyan Machinery Co Ltd
Priority to CN2010105188786A priority Critical patent/CN101975185A/en
Publication of CN101975185A publication Critical patent/CN101975185A/en
Pending legal-status Critical Current

Links

Images

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

Small sized turbine supercharger air compressor sealing configuration
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.
CN2010105188786A 2010-10-21 2010-10-21 Compressor seal structure of small turbocharger Pending CN101975185A (en)

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

ID=43575090

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
CN (1) CN101975185A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Patent Citations (6)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Similar Documents

Publication Publication Date Title
CN101975185A (en) Compressor seal structure of small turbocharger
CN103206271B (en) Turbine shaft seal arrangement
WO2013106303A1 (en) Sealing system and turbocharger incorporating the same
CN201627605U (en) Sealing and heat insulation structure at vortex end of turbocharger
CN104454150A (en) Turbocharger gas compressor sealing structure
CN101509399B (en) Split axial carrying device of turbo-charger
CN201050387Y (en) Exhaust-driven turbo-charger central rotor device
CN201844022U (en) Seal structure of compressor of small turbocharger
CN204402646U (en) Compressor end sealing structure of turbosuperchargers
CN100559019C (en) A kind of exhaust-driven turbo-charger central rotor device
US10900380B2 (en) Recirculation stall in compressor insert or backplate
CN203906018U (en) Compressor end sealing structure of turbocharger
CN201381896Y (en) Oil seal structure of turbocharger
CN102562263A (en) Turbocharger
CN103912577A (en) Split-type turbocharger thrust bearing
CN104594961A (en) Gas compressor end sealing structure of turbocharger
JP2018145910A (en) Electric supercharger
CN217055298U (en) Shaft end sealing structure of turbocharger
CN202611779U (en) Double-seal-ring and double-oil-cavity middle body structure for turbocharger
KR101532439B1 (en) Thrust bearing seal for exhaust gas turbo charger
CN200949485Y (en) Improvement of turbocharger structure used in vehicle diesel engine
CN203756726U (en) Split-type turbosupercharger thrust bearing
CN209671071U (en) A kind of New type gland cover used in turbocharger
CN106762789B (en) Semicircular flange structure and marine diesel engine waste gas booster pump
CN218235574U (en) Compressor sealing structure

Legal Events

Date Code Title Description
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: 20110216