CN109611235A - Engine rear end sealing device - Google Patents

Engine rear end sealing device Download PDF

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Publication number
CN109611235A
CN109611235A CN201910044904.7A CN201910044904A CN109611235A CN 109611235 A CN109611235 A CN 109611235A CN 201910044904 A CN201910044904 A CN 201910044904A CN 109611235 A CN109611235 A CN 109611235A
Authority
CN
China
Prior art keywords
sealing
rear end
sealing cover
face
ring
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
CN201910044904.7A
Other languages
Chinese (zh)
Inventor
张成相
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.)
SAIC Motor Corp Ltd
Original Assignee
SAIC Motor Corp 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 SAIC Motor Corp Ltd filed Critical SAIC Motor Corp Ltd
Priority to CN201910044904.7A priority Critical patent/CN109611235A/en
Publication of CN109611235A publication Critical patent/CN109611235A/en
Pending legal-status Critical Current

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Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02FCYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F11/00Arrangements of sealings in combustion engines 

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Gasket Seals (AREA)

Abstract

The invention discloses a kind of engine rear end sealing devices, the sealing cover (1) including being assemblied in engine rear end, assemble sealing ring (11) on the leading exterior surface of sealing cover, and the front end of sealing cover is tightly connected by sealing ring and oil seal seat (2);The rear end of sealing cover is equipped with flange face (12), and flange face is connect with the gluing end face seal of gear chamber (3).The sealing ring is O-ring seal, and sealing ring and oil seal seat is made to form radial seal.The outer diameter of the flange face is greater than the outer diameter of sealing cover, and flange face is enable to be fitted on the gluing end face of gear chamber.The present invention forms radial seal by the O-ring and flange face and back oil seal seat of sealing cover, the excessive compression of rubber sheet gasket is limited well, it ensure that the reliable sealing between oil sump and cylinder body, solves the problems, such as oil sealing when engine assembly, guarantee the sealing of oil seal seat and gear chamber when unassembled rear end gear chamber, to complete assembly line test run.

Description

Engine rear end sealing device
Technical field
The present invention relates to a kind of engine component more particularly to a kind of engine rear end sealing devices.
Background technique
Automobile assembling production in, behind assembling gear room, need to seal between oil seal seat and gear chamber, make gear chamber with Engine crankcase connection, currently, the sealing of oil sump and cylinder body mainly by way of gluing or passes through pad on engine The sealing means of piece, gasket seal are the usual ways of oil sump and cylinder body sealing on current engine.Due to upper oil sump with Cylinder body is directly connected to by bolt, and the compression height of gasket is caused to be unable to control, and in order to ensure leakproofness, gasket is often excessive Compression, influences the deformability of gasket, thus the leakproofness after reducing the long-time use of the service life of gasket.
Utility model patent CN201301742 discloses a kind of engine sump tank applied to engine sump tank field Plane in sealing structure, including oil pan body, rubber sheet gasket, cylinder body lower plane, oil sump, outside oil sump end face, in cylinder The hook-shaped fixing that the two can be linked together is added outside body lower plane and oil sump end face, fixing passes through Bolt and between setting cylinder body lower plane link together.The patent is end face seal structure, and no radial seal uses, and sealing can It is poor by property.
Summary of the invention
The purpose of the present invention is to provide a kind of engine rear end sealing devices, can limit the excessive of rubber sheet gasket well Compression, ensure that the reliable sealing between gear chamber and cylinder body.
The present invention is implemented as follows:
A kind of engine rear end sealing device, the sealing cover including being assemblied in engine rear end, on the leading exterior surface of sealing cover Sealing ring is assembled, the front end of sealing cover is tightly connected by sealing ring and oil seal seat;The rear end of sealing cover is equipped with flange face, flange The gluing end face seal of face and gear chamber connects.
The sealing ring is O-ring seal, and sealing ring and oil seal seat is made to be formed radially radial seal along sealing cover.
The outer diameter of the flange face is greater than the outer diameter of sealing cover, and flange face is enable to be fitted in the gluing end face of gear chamber On.
Compared with prior art, the present invention having the following beneficial effects:
1, the present invention can effectively limit the excess compression of rubber sheet gasket, it is ensured that the resilience and leakproofness of rubber sheet gasket, to make Reliable sealing is realized between gear chamber and cylinder body.
2, the present invention can efficiently reduce the requirement in arrangement of parts space, characteristics of compact layout, moreover it is possible to meet engine sealing and want It asks.
The present invention forms radial seal by the O-ring and flange face and back oil seal seat of sealing cover, limits O-ring well Excessive compression, ensure that the reliable sealing between gear chamber and cylinder body, solve the problems, such as oil sealing when engine assembly, guarantee When unassembled rear end gear chamber, engine can still provide for assembling cold test run.
Detailed description of the invention
Fig. 1 is the installation diagram of inventive engine back-end sealing device;
Fig. 2 is the cross-sectional view of inventive engine back-end sealing device.
In figure, 1 sealing cover, 11 sealing rings, 12 flange faces, 2 oil seal seats, 3 gear chambers.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings and specific examples.
Refer to attached drawing 1 and attached drawing 2, a kind of engine rear end sealing device, the sealing including being assemblied in engine rear end Lid 1, sealing ring 11 is assembled on the leading exterior surface of sealing cover 1, and the front end of sealing cover 1 is sealed by sealing ring 11 and oil seal seat 2 Connection;The rear end of sealing cover 1 is equipped with flange face 12, and flange face 12 is connect with the gluing end face seal of gear chamber 3.
The sealing ring 11 is O-ring seal, and sealing ring 11 and oil seal seat 2 is made to be formed radially radial direction along sealing cover 1 Sealing.The outer diameter of the flange face 12 is greater than the outer diameter of sealing cover 1, and the section of flange face 12 and sealing cover 1 is L-shaped structure, Flange face 12 is set to be fitted on the gluing end face of gear chamber 3.O-ring seal passes through back oil seal seat bore dia and seal cap sealing The difference of slot bottom diameter is compressed to control transition, so that forming sealing prevents from revealing.
O-ring seal into factory, when assembly, first applies silica gel in the end face of sealing cover 1 loaded on sealing cover slot assembly, it is preferred that Silica gel smears width and is at least 2mm wide, and the appropriate machine oil that applies makes to fit through gear chamber hole and entrance on the surface of O-ring seal When Rear oil seal bore, it is easier to enter, O-ring seal trimming is avoided to fail.
Sealing cover 1 can be used materials A DC12(ADC12 and be also known as No. 12 aluminium material, and Al-Si-Cu system alloy is a kind of die casting aluminium Alloy is suitble to cylinder head the cover, sensor stand, cylinder body class etc., executes standard are as follows: JIS H 5302-2000 " aluminium alloy compression casting Part ");Rubber can be used in O-ring seal, it is preferred that ethylene-acrylate rubber (AEM) can be used, be methyl acrylate content For 8%~40% ethylene copolymer.
The above is merely preferred embodiments of the present invention, it is not intended to limit the protection scope of invention, it is therefore, all at this Any modification, equivalent replacement, improvement and so within the spirit and principle of invention, should be included in protection model of the invention Within enclosing.

Claims (3)

1. a kind of engine rear end sealing device, it is characterized in that: including the sealing cover (1) for being assemblied in engine rear end, sealing cover (1) sealing ring (11) are assembled on leading exterior surface, the front end of sealing cover (1) is sealed by sealing ring (11) and oil seal seat (2) Connection;The rear end of sealing cover (1) is equipped with flange face (12), and flange face (12) is connect with the gluing end face seal of gear chamber (3).
2. engine rear end sealing device according to claim 1, it is characterized in that: the sealing ring (11) is O-shaped close Seal makes sealing ring (11) and oil seal seat (2) to be formed radially radial seal along sealing cover (1).
3. engine rear end sealing device according to claim 1, it is characterized in that: the outer diameter of the flange face (12) is big Outer diameter in sealing cover (1) be fitted in flange face (12) can on the gluing end face of gear chamber (3).
CN201910044904.7A 2019-01-17 2019-01-17 Engine rear end sealing device Pending CN109611235A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201910044904.7A CN109611235A (en) 2019-01-17 2019-01-17 Engine rear end sealing device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201910044904.7A CN109611235A (en) 2019-01-17 2019-01-17 Engine rear end sealing device

Publications (1)

Publication Number Publication Date
CN109611235A true CN109611235A (en) 2019-04-12

Family

ID=66017789

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201910044904.7A Pending CN109611235A (en) 2019-01-17 2019-01-17 Engine rear end sealing device

Country Status (1)

Country Link
CN (1) CN109611235A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114542321A (en) * 2020-11-26 2022-05-27 长城汽车股份有限公司 Sealing structure of eccentric shaft position sensor

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510304A1 (en) * 1991-04-20 1992-10-28 Goetze Ag Housing closure cover
CN202381192U (en) * 2011-11-29 2012-08-15 重庆建设摩托车股份有限公司 Sealing structure for cylinder body of engine of motorcycle
CN102877975A (en) * 2012-10-16 2013-01-16 无锡华源凯马发动机有限公司 Ladder type separated engine body
CN202832845U (en) * 2012-09-19 2013-03-27 南车玉柴四川发动机股份有限公司 Diesel engine back oil seal
CN103382891A (en) * 2012-05-02 2013-11-06 安徽华菱汽车有限公司 Power takeoff at rear end of engine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0510304A1 (en) * 1991-04-20 1992-10-28 Goetze Ag Housing closure cover
CN202381192U (en) * 2011-11-29 2012-08-15 重庆建设摩托车股份有限公司 Sealing structure for cylinder body of engine of motorcycle
CN103382891A (en) * 2012-05-02 2013-11-06 安徽华菱汽车有限公司 Power takeoff at rear end of engine
CN202832845U (en) * 2012-09-19 2013-03-27 南车玉柴四川发动机股份有限公司 Diesel engine back oil seal
CN102877975A (en) * 2012-10-16 2013-01-16 无锡华源凯马发动机有限公司 Ladder type separated engine body

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN114542321A (en) * 2020-11-26 2022-05-27 长城汽车股份有限公司 Sealing structure of eccentric shaft position sensor
CN114542321B (en) * 2020-11-26 2023-03-21 长城汽车股份有限公司 Sealing structure of eccentric shaft position sensor

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PB01 Publication
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SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication

Application publication date: 20190412

RJ01 Rejection of invention patent application after publication