FR2369468A1 - U=section IC engine oil scraper ring - has asymmetrically positioned slits producing unequal contact pressures on cylinder wall - Google Patents

U=section IC engine oil scraper ring - has asymmetrically positioned slits producing unequal contact pressures on cylinder wall

Info

Publication number
FR2369468A1
FR2369468A1 FR7732269A FR7732269A FR2369468A1 FR 2369468 A1 FR2369468 A1 FR 2369468A1 FR 7732269 A FR7732269 A FR 7732269A FR 7732269 A FR7732269 A FR 7732269A FR 2369468 A1 FR2369468 A1 FR 2369468A1
Authority
FR
France
Prior art keywords
section
cylinder wall
scraper ring
base
oil scraper
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.)
Granted
Application number
FR7732269A
Other languages
French (fr)
Other versions
FR2369468B1 (en
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.)
PRINGY MECANIQUE
Original Assignee
PRINGY MECANIQUE
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 PRINGY MECANIQUE filed Critical PRINGY MECANIQUE
Publication of FR2369468A1 publication Critical patent/FR2369468A1/en
Application granted granted Critical
Publication of FR2369468B1 publication Critical patent/FR2369468B1/fr
Granted legal-status Critical Current

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
    • F16J9/12—Details
    • F16J9/20—Rings with special cross-section; Oil-scraping rings
    • F16J9/206—One-piece oil-scraping rings
    • 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
    • F16J9/20—Rings with special cross-section; Oil-scraping rings
    • F16J9/203—Oil-scraping rings

Landscapes

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

Abstract

The oil scraper ring is used for cylinders of i.c. engines and is stamped out of an elastic steel material and shaped into a U-cross section. The edges are the parts in sliding contact with the cylinder wall, the base part of the U-shape resting in the base of a groove on the piston. Over the circumference the base is provided with a number of slots, the length of which asymmetrically arranged to the symmetry axis extend beyond the base towards the leg part of the U-shape. The slots thus produce legs of different lengths, which on alternating sides are cut through up to the edges. The legs of different lengths produce contact pressures of different magnitudes resulting in unequal wear of the two edges.
FR7732269A 1976-10-29 1977-10-26 U=section IC engine oil scraper ring - has asymmetrically positioned slits producing unequal contact pressures on cylinder wall Granted FR2369468A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19762649470 DE2649470C3 (en) 1976-10-29 1976-10-29 Wiper ring with a U-shaped profile

Publications (2)

Publication Number Publication Date
FR2369468A1 true FR2369468A1 (en) 1978-05-26
FR2369468B1 FR2369468B1 (en) 1981-11-20

Family

ID=5991951

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7732269A Granted FR2369468A1 (en) 1976-10-29 1977-10-26 U=section IC engine oil scraper ring - has asymmetrically positioned slits producing unequal contact pressures on cylinder wall

Country Status (2)

Country Link
DE (1) DE2649470C3 (en)
FR (1) FR2369468A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516500A1 (en) * 1991-05-27 1992-12-02 Sealed Power Europe Sa Compression ring for a piston machine
US6655697B2 (en) 2002-01-18 2003-12-02 Dana Corporation Piston oil ring having land flanked by concave sidewalls

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19808484C1 (en) * 1998-02-27 1999-04-29 Federal Mogul Burscheid Gmbh Combustion engine oil scraper ring
DE19808481C1 (en) * 1998-02-27 1999-12-30 Federal Mogul Burscheid Gmbh Oil scraper piston ring

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2631908A (en) * 1947-10-29 1953-03-17 Perfect Circle Corp Piston ring
US2668088A (en) * 1948-03-20 1954-02-02 Wilkening Mfg Co Piston ring and expander therefor
US3447811A (en) * 1966-08-12 1969-06-03 Mcquay Norris Mfg Co Piston ring assembly

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2631908A (en) * 1947-10-29 1953-03-17 Perfect Circle Corp Piston ring
US2668088A (en) * 1948-03-20 1954-02-02 Wilkening Mfg Co Piston ring and expander therefor
US3447811A (en) * 1966-08-12 1969-06-03 Mcquay Norris Mfg Co Piston ring assembly

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0516500A1 (en) * 1991-05-27 1992-12-02 Sealed Power Europe Sa Compression ring for a piston machine
FR2677079A1 (en) * 1991-05-27 1992-12-04 Sealed Power Technologies Prin COMPRESSION SEGMENT FOR ALTERNATIVE PISTON MACHINES.
US6655697B2 (en) 2002-01-18 2003-12-02 Dana Corporation Piston oil ring having land flanked by concave sidewalls

Also Published As

Publication number Publication date
FR2369468B1 (en) 1981-11-20
DE2649470B2 (en) 1980-05-29
DE2649470A1 (en) 1978-05-03
DE2649470C3 (en) 1981-02-05

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Legal Events

Date Code Title Description
CD Change of name or company name
ST Notification of lapse