SE9800568D0 - Piston ring - Google Patents

Piston ring

Info

Publication number
SE9800568D0
SE9800568D0 SE9800568A SE9800568A SE9800568D0 SE 9800568 D0 SE9800568 D0 SE 9800568D0 SE 9800568 A SE9800568 A SE 9800568A SE 9800568 A SE9800568 A SE 9800568A SE 9800568 D0 SE9800568 D0 SE 9800568D0
Authority
SE
Sweden
Prior art keywords
piston ring
circumferential face
face
leak
combustion gas
Prior art date
Application number
SE9800568A
Other languages
Swedish (sv)
Other versions
SE9800568L (en
Inventor
M Obayashi
Original Assignee
Nippon Piston Ring 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 Nippon Piston Ring Co Ltd filed Critical Nippon Piston Ring Co Ltd
Publication of SE9800568D0 publication Critical patent/SE9800568D0/en
Publication of SE9800568L publication Critical patent/SE9800568L/en

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/06—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction using separate springs or elastic elements expanding the rings; Springs therefor ; Expansion by wedging
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J9/00—Piston-rings, e.g. non-metallic piston-rings, seats therefor; Ring sealings of similar construction
    • F16J9/12—Details

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Pistons, Piston Rings, And Cylinders (AREA)

Abstract

PROBLEM TO BE SOLVED: To appropriately leak combustion gas so as to suppress friction by providing shallow leak grooves for communicating the outer circumferential face with the internal circumferential face of a ring in a plurality of positions in the bottom face or top/bottom faces of the piston ring at same intervals. SOLUTION: Radial and shallow leak grooves 3 for communicating the outer circumferential face with the internal circumferential face of a piston ring are provided in the bottom 13 of the piston ring 1 in four positions on the circumference of the piston ring at approximately same intervals and an abutment part 2 is set to a gastight abutment part. Combustion gas is leaked from the top face of the piston ring 1 through the internal circumferential face to the bottom of the piston ring 1 via the leak grooves 3 as shown an arrow. The leak grooves 3 are provided in the bottom 13 of the piston ring 1 and not in the outer circumferential face so that combustion gas is appropriately leaked with little friction, the life of the piston ring can be elongated, and the internal combustion engine can be efficiently operated.
SE9800568A 1997-02-27 1998-02-25 Piston ring used for internal combustion engine SE9800568L (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9044338A JPH10238630A (en) 1997-02-27 1997-02-27 Piston ring for internal combustion engine

Publications (2)

Publication Number Publication Date
SE9800568D0 true SE9800568D0 (en) 1998-02-25
SE9800568L SE9800568L (en) 1998-08-28

Family

ID=12688736

Family Applications (1)

Application Number Title Priority Date Filing Date
SE9800568A SE9800568L (en) 1997-02-27 1998-02-25 Piston ring used for internal combustion engine

Country Status (3)

Country Link
JP (1) JPH10238630A (en)
KR (1) KR19980071704A (en)
SE (1) SE9800568L (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19857637A1 (en) * 1998-12-14 2000-06-15 Mahle Gmbh Piston ring for a piston for internal combustion engines
WO2004111503A1 (en) * 2003-06-14 2004-12-23 Man B & W Diesel A/S Reciprocating piston engine
JP5013899B2 (en) * 2007-02-22 2012-08-29 ペンタックスリコーイメージング株式会社 Drip-proof structure in lens barrel
KR102122837B1 (en) * 2014-02-21 2020-06-15 두산인프라코어 주식회사 Piston ring and piston having the same
KR101637705B1 (en) * 2014-10-28 2016-07-07 현대자동차주식회사 Piston Assembly for Vehicle Engine
DE102015111306B3 (en) * 2015-07-13 2016-07-14 Federal-Mogul Burscheid Gmbh Compression piston ring with profiling

Also Published As

Publication number Publication date
SE9800568L (en) 1998-08-28
KR19980071704A (en) 1998-10-26
JPH10238630A (en) 1998-09-08

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