JP2017089751A5 - - Google Patents

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Publication number
JP2017089751A5
JP2017089751A5 JP2015220432A JP2015220432A JP2017089751A5 JP 2017089751 A5 JP2017089751 A5 JP 2017089751A5 JP 2015220432 A JP2015220432 A JP 2015220432A JP 2015220432 A JP2015220432 A JP 2015220432A JP 2017089751 A5 JP2017089751 A5 JP 2017089751A5
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JP
Japan
Prior art keywords
joint
ring
circumferential direction
ring member
piston
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JP2015220432A
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Japanese (ja)
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JP6534066B2 (en
JP2017089751A (en
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Priority to JP2015220432A priority Critical patent/JP6534066B2/en
Priority claimed from JP2015220432A external-priority patent/JP6534066B2/en
Publication of JP2017089751A publication Critical patent/JP2017089751A/en
Publication of JP2017089751A5 publication Critical patent/JP2017089751A5/ja
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Claims (3)

シリンダとシリンダ内を往復移動するピストンの外周面に設けられた溝内に少なくとも3段に重ねられているピストンリングにおいて、それら3段のピストンリングのうち、特定の1段のものを合口無しとしたものであって、圧縮室から一番離れた位置で、
リング板状をなし、合口を持たずに周方向に連続した合口無しのリング部材と、前記合口無しのリング部材の一面であり、圧縮室に近い側に配置された周方向の一部で半径方向に相互に気密性を有して対向して形成された第2の合口を有するリング部材で、この第2の合口では、対向する部分が周方向に相対的に移動できる第2のリング部材と、
前記第2のリング部材の一面であり、圧縮室により近い側に配置され、周方向の一部で分断されて、周方向に対向する面を有する第3の合口が形成された第3のリング部材を有し、
前記第2の合口と前記第3の合口がリング周方向の異なる位置になるように重ねられることを特徴とする自己潤滑性ピストンリング。
In a piston ring that is overlapped in at least three stages in a groove provided on an outer peripheral surface of a piston that reciprocates between the cylinder and the inside of the cylinder, a specific one of the three stages of the piston ring has no joint. In the position farthest from the compression chamber,
A ring plate-shaped ring member without a joint and continuous in the circumferential direction without a joint, and one surface of the ring member without a joint and a part of the circumferential direction disposed on the side close to the compression chamber A ring member having a second abutment formed so as to face each other with airtightness in the direction, and in this second abutment, a second ring member in which the opposed portions can move relatively in the circumferential direction When,
A third ring, which is one surface of the second ring member, is disposed closer to the compression chamber, is divided at a portion in the circumferential direction, and has a third joint having a surface facing the circumferential direction. Having a member,
The self-lubricating piston ring, wherein the second abutment and the third abutment are overlapped so as to be at different positions in the ring circumferential direction.
前記合口無しのリング部材の前記溝内における外周隙間は、前記合口のある第2および第3のリング部材の前記溝内における外周隙間よりも大きいことを特徴とする請求項1に記載の自己潤滑性ピストンリング。 The self-lubricating according to claim 1, wherein an outer peripheral gap in the groove of the ring member without the joint is larger than an outer peripheral gap in the groove of the second and third ring members having the joint. Sex piston ring. 前記第2の合口を持つリング部材は、リング部材の周方向に沿う合口部分と、
その合口に対して直交する合口部分とを備え、しかも、前記第3の合口を持つリング部材は,前記直交する合口部分のみを備える請求項1に記載の自己潤滑性ピストンリング。
The ring member having the second joint is a joint part along the circumferential direction of the ring member;
2. The self-lubricating piston ring according to claim 1, further comprising a joint member orthogonal to the joint, and the ring member having the third joint includes only the joint part orthogonal to the joint.
JP2015220432A 2015-11-10 2015-11-10 piston ring Active JP6534066B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2015220432A JP6534066B2 (en) 2015-11-10 2015-11-10 piston ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2015220432A JP6534066B2 (en) 2015-11-10 2015-11-10 piston ring

Publications (3)

Publication Number Publication Date
JP2017089751A JP2017089751A (en) 2017-05-25
JP2017089751A5 true JP2017089751A5 (en) 2018-03-08
JP6534066B2 JP6534066B2 (en) 2019-06-26

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ID=58771379

Family Applications (1)

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JP2015220432A Active JP6534066B2 (en) 2015-11-10 2015-11-10 piston ring

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JP (1) JP6534066B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP7009238B2 (en) * 2018-01-31 2022-01-25 株式会社神戸製鋼所 Reciprocating compressor
CN108799493B (en) * 2018-06-08 2020-01-07 安徽共青机电装备制造有限公司 Piston ring for oil-free lubrication compressor

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6021068U (en) * 1983-07-21 1985-02-13 日本ピラ−工業株式会社 Oil-free piston ring
JPH062768A (en) * 1992-06-18 1994-01-11 Tokico Ltd Piston ring of swing type compressor
JPH06185619A (en) * 1992-12-16 1994-07-08 Toyota Motor Corp Piston sealing structure
JP6256674B2 (en) * 2013-08-13 2018-01-10 聖 丘野 piston ring

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