JPS5627050A - Piston ring - Google Patents

Piston ring

Info

Publication number
JPS5627050A
JPS5627050A JP10183279A JP10183279A JPS5627050A JP S5627050 A JPS5627050 A JP S5627050A JP 10183279 A JP10183279 A JP 10183279A JP 10183279 A JP10183279 A JP 10183279A JP S5627050 A JPS5627050 A JP S5627050A
Authority
JP
Japan
Prior art keywords
ring
contact
cylinder wall
wall surface
piston
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
JP10183279A
Other languages
Japanese (ja)
Other versions
JPS6229628B2 (en
Inventor
Shigefumi Yasuhara
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.)
Nissan Motor Co Ltd
Original Assignee
Nissan Motor 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 Nissan Motor Co Ltd filed Critical Nissan Motor Co Ltd
Priority to JP10183279A priority Critical patent/JPS5627050A/en
Publication of JPS5627050A publication Critical patent/JPS5627050A/en
Publication of JPS6229628B2 publication Critical patent/JPS6229628B2/ja
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

Landscapes

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

Abstract

PURPOSE:To provide an oil-scraping-off function as well as a carbone-scraping- out function, by a method wherein, in a scraper ring of a piston, a toroidal concave portion is formed in a central portion of an external circumference surface of a ring making contact with a cylinder wall surface. CONSTITUTION:A scraper ring 10, which is mounted at an upwardmost portion of a piston in an engine, has an operation necessary to scrape out carbon adhered to a cylinder wall surface 12. A groove 11 having the shape of an arc of a circle in a cross section is formed along an outer circumference surface of the scraper ring 10 at a central portion thereof, and this causes the formation of upper and lower contact surface 13 and 14 which make contact with the cylinder wall surface 12. Said contact surface 13 and 14 are positioned so that they make contact with contact points 13a and 14a at an angle of 90 deg. or at an acute angle of below 90 deg.. A cross section of the ring 10 is formed in a wedge shape with an upper and a lower surface so that an inner diameter portion becomes thinner. A vertical slit for ventilation is made in an outer circumference of the ring 10.
JP10183279A 1979-08-10 1979-08-10 Piston ring Granted JPS5627050A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP10183279A JPS5627050A (en) 1979-08-10 1979-08-10 Piston ring

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP10183279A JPS5627050A (en) 1979-08-10 1979-08-10 Piston ring

Publications (2)

Publication Number Publication Date
JPS5627050A true JPS5627050A (en) 1981-03-16
JPS6229628B2 JPS6229628B2 (en) 1987-06-26

Family

ID=14311058

Family Applications (1)

Application Number Title Priority Date Filing Date
JP10183279A Granted JPS5627050A (en) 1979-08-10 1979-08-10 Piston ring

Country Status (1)

Country Link
JP (1) JPS5627050A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57123939U (en) * 1981-01-28 1982-08-02
US10113643B2 (en) * 2014-03-18 2018-10-30 Ford Global Technologies, Llc Compression piston ring for an internal combustion engine

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5171412A (en) * 1974-11-26 1976-06-21 Daimler Benz Ag OFUKUPISUTONKIKANYOPISUTONRINGU

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5171412A (en) * 1974-11-26 1976-06-21 Daimler Benz Ag OFUKUPISUTONKIKANYOPISUTONRINGU

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS57123939U (en) * 1981-01-28 1982-08-02
US10113643B2 (en) * 2014-03-18 2018-10-30 Ford Global Technologies, Llc Compression piston ring for an internal combustion engine

Also Published As

Publication number Publication date
JPS6229628B2 (en) 1987-06-26

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