CN104358621A - Piston ring with variable radial thickness - Google Patents

Piston ring with variable radial thickness Download PDF

Info

Publication number
CN104358621A
CN104358621A CN201410515214.2A CN201410515214A CN104358621A CN 104358621 A CN104358621 A CN 104358621A CN 201410515214 A CN201410515214 A CN 201410515214A CN 104358621 A CN104358621 A CN 104358621A
Authority
CN
China
Prior art keywords
piston ring
opening
ring
radial thickness
shaped
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
CN201410515214.2A
Other languages
Chinese (zh)
Inventor
吴映雪
胡敏
刘千喜
周月亭
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.)
Asimco Shuanghuan Piston Ring Yizheng Co Ltd
Original Assignee
Asimco Shuanghuan Piston Ring Yizheng 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 Asimco Shuanghuan Piston Ring Yizheng Co Ltd filed Critical Asimco Shuanghuan Piston Ring Yizheng Co Ltd
Priority to CN201410515214.2A priority Critical patent/CN104358621A/en
Publication of CN104358621A publication Critical patent/CN104358621A/en
Pending legal-status Critical Current

Links

Classifications

    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J9/00Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12Details
    • F16J9/14Joint-closures
    • 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
    • F02F5/00Piston rings, e.g. associated with piston crown
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16JPISTONS; CYLINDERS; SEALINGS
    • F16J9/00Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12Details
    • F16J9/20Rings with special cross-section; Oil-scraping rings

Abstract

The invention discloses a piston ring with variable radial thickness, belongs to the technical field of piston ring manufacture, and is particularly and mainly applicable to the production technology of a first piston ring and a second piston ring of an internal combustion engine. On the two sides of an opening of a C-shaped ring body in symmetry, the inner diameter of the C-shaped ring, forming an included angle of 1-90 degrees with the center line of the opening, in a circumferential fan-shaped area, is greater than the inner diameter of the C-shaped ring, forming an included angle of 90-180 degrees with the center line of the opening, in the circumferential fan-shaped area. According to the invention, the contact pressure between the opening and a cylinder hole is reduced by about 5-50% so as to further reduce the abrasion loss of the opening of the piston ring. In addition, the piston ring, disclosed by the invention, is 1.5-3 times the negative ovality of a common piston ring to further improve the adaptability of the opening of the piston ring to the cylinder hole deformation and reduce the oil consumption and air leakage of an engine. The piston ring is particularly suitable for the working requirements of energy consumption reduction and low emission for engines of modern vehicles, engineering machinery, ship power and the like.

Description

A kind of change radial thickness piston ring
Technical field
The invention belongs to piston ring manufacturing technology field, be particularly mainly used in the first of internal-combustion engine and the production technology of second piston ring.
Background technique
Hyundai Motor requires that motor has higher power, lower fuel oil consumption and longer working life, and reduces exhaust emissions further to the burden of environment, and manufacturers of engines being is all constantly is being researched and developed for pursuing this target for this reason.For adapting to this engine technology developments trend, components supplying business conducts in-depth research in the structural design of engine piston ring.
Improve piston ring to the adaptive capacity of engine cylinder bore deformation, and lower piston ring in use opening part tension hinder ability, be one of key project of Piston ring design and manufacture.
Summary of the invention
The object of this invention is to provide and a kind ofly improve adaptive capacity to cylinder holes distortion by strengthening negative ovality, to reduce the change radial thickness piston ring of the wear extent of opening by reducing opening with the contact of cylinder holes.
The object of the invention is to be achieved through the following technical solutions: a kind ofly become radial thickness piston ring, comprise the C shape ring body being provided with an opening, it is characterized in that: piston ring is when installment state, on the bilateral symmetry ground of opening, be 90 ° of internal diameters to the C shape ring in the circumferential sector region of 180 ° of angles from being that 1 ° of internal diameter to the C shape ring in the circumferential sector region of 90 ° of angles is greater than with open centre line with open centre line.
Namely external diameter is constant, due to from being that 1 ° of internal diameter to the C shape ring in the circumferential sector region of 90 ° of angles is large with open centre line, is less than other region to making the change radial thickness in this region.This structure, can realize the contact reduction about 5% ~ 50% of opening part with cylinder holes, and then reduce the wear extent at gap-clearance of piston rings position.Meanwhile, this structure can also negative ovality be 1.5 ~ 3 times of conventional piston ring, and then improves the adaptability that gap-clearance of piston rings position is out of shape cylinder holes, reduces oil consumption and the air leakage of motor.The present invention is particularly suitable for the job requirement that the motors such as Hyundai Motor, engineering machinery, ship power reduce energy consumption and low emission.
Described from being 0.5 ~ 0.995 times that 1 ° of radial thickness to the C shape ring in the circumferential sector region of 90 ° of angles is all the other position radial thicknesss with open centre line.
Accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present invention.
Embodiment
As shown in Figure 1, piston ring is when installment state, for being provided with the C shape ring body of an opening 1, on the bilateral symmetry ground of opening 1, be 90 ° of internal diameter R1 to the C shape ring in the circumferential sector region of 180 ° of angles from being that 1 ° of internal diameter R2 to the C shape ring in the circumferential sector region of 90 ° of angles is greater than with open centre line with open centre line.
Because external diameter is R, so, from being 0.5 ~ 0.995 times that 1 ° of radial thickness a2 to the C shape ring in the circumferential sector region of 90 ° of angles can be all the other positions radial thickness a1 with open centre line.

Claims (2)

1. one kind becomes radial thickness piston ring, comprise the C shape ring body being provided with an opening, it is characterized in that: piston ring is when installment state, on the bilateral symmetry ground of opening, be 90 ° of internal diameters to the C shape ring in the circumferential sector region of 180 ° of angles from being that 1 ° of internal diameter to the C shape ring in the circumferential sector region of 90 ° of angles is greater than with open centre line with open centre line.
2. change radial thickness piston ring according to claim 1, it is characterized in that: piston ring when installment state, from being 0.5 ~ 0.995 times that 1 ° of radial thickness to the C shape ring in the circumferential sector region of 90 ° of angles is all the other position radial thicknesss with open centre line.
CN201410515214.2A 2014-09-30 2014-09-30 Piston ring with variable radial thickness Pending CN104358621A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410515214.2A CN104358621A (en) 2014-09-30 2014-09-30 Piston ring with variable radial thickness

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CN201410515214.2A CN104358621A (en) 2014-09-30 2014-09-30 Piston ring with variable radial thickness
CN201510618489.3A CN105134403A (en) 2014-09-30 2015-09-24 Piston ring with variable radial thicknesses
PCT/CN2015/090543 WO2016050164A1 (en) 2014-09-30 2015-09-24 Piston ring with variable radial thickness
DE212015000233.0U DE212015000233U1 (en) 2014-09-30 2015-09-24 Piston ring with variable radial thickness

Publications (1)

Publication Number Publication Date
CN104358621A true CN104358621A (en) 2015-02-18

Family

ID=52525917

Family Applications (2)

Application Number Title Priority Date Filing Date
CN201410515214.2A Pending CN104358621A (en) 2014-09-30 2014-09-30 Piston ring with variable radial thickness
CN201510618489.3A Pending CN105134403A (en) 2014-09-30 2015-09-24 Piston ring with variable radial thicknesses

Family Applications After (1)

Application Number Title Priority Date Filing Date
CN201510618489.3A Pending CN105134403A (en) 2014-09-30 2015-09-24 Piston ring with variable radial thicknesses

Country Status (3)

Country Link
CN (2) CN104358621A (en)
DE (1) DE212015000233U1 (en)
WO (1) WO2016050164A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016050164A1 (en) * 2014-09-30 2016-04-07 仪征亚新科双环活塞环有限公司 Piston ring with variable radial thickness
CN109642669A (en) * 2016-09-08 2019-04-16 联邦摩高布尔沙伊德公司 With the axial two-piece type oil-scraping ring stablized and torsion compensates

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3612456C2 (en) * 1986-04-14 1988-03-10 Friedhelm 5090 Leverkusen De Stecher
JPH09196171A (en) * 1996-01-23 1997-07-29 Nippon Soken Inc Piston ring
JP3792413B2 (en) * 1998-10-19 2006-07-05 日本ピストンリング株式会社 piston ring
CN2352692Y (en) * 1998-11-24 1999-12-08 李振航 Power improvement fuel saving and durable piston ring package
JP4209575B2 (en) * 2000-03-23 2009-01-14 日本ピストンリング株式会社 piston ring
DE10041802C1 (en) * 2000-08-25 2002-02-28 Federal Mogul Burscheid Gmbh Compression piston ring
CN200978733Y (en) * 2006-10-10 2007-11-21 戴旭尧 Self-regulation complementary type piston ring
DE102007029992A1 (en) * 2007-06-28 2009-01-08 Mahle International Gmbh piston ring
JP4915865B2 (en) * 2007-07-27 2012-04-11 日本ピストンリング株式会社 Pressure ring
DE102009049788B3 (en) * 2009-10-19 2011-01-13 Federal-Mogul Burscheid Gmbh Multi-part piston ring
DE102010046551B4 (en) * 2010-09-27 2014-09-04 Federal-Mogul Burscheid Gmbh Method for producing a piston ring
CN104358621A (en) * 2014-09-30 2015-02-18 仪征亚新科双环活塞环有限公司 Piston ring with variable radial thickness

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016050164A1 (en) * 2014-09-30 2016-04-07 仪征亚新科双环活塞环有限公司 Piston ring with variable radial thickness
CN109642669A (en) * 2016-09-08 2019-04-16 联邦摩高布尔沙伊德公司 With the axial two-piece type oil-scraping ring stablized and torsion compensates

Also Published As

Publication number Publication date
WO2016050164A1 (en) 2016-04-07
DE212015000233U1 (en) 2017-05-22
CN105134403A (en) 2015-12-09

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Legal Events

Date Code Title Description
PB01 Publication
C06 Publication
SE01 Entry into force of request for substantive examination
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20150218

C02 Deemed withdrawal of patent application after publication (patent law 2001)