Patent · US Expired

Compression ring for internal-combustion engines

US5253878A · kind A · utility

11Cited by
4References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateMay 28, 1992
Grant dateOct 19, 1993
Priority date
Expiry dateMay 28, 2012

Classification

  • Technology area (CPC F)Mechanical Engineering; Lighting; Heating
  • CPC primaryF16J9/14
  • WIPO fieldMechanical elements
  • WIPO sectorMechanical engineering

Abstract

A compression ring for an internal-combustion engine includes an outer circumferential surface and a lower circumferential surface which define a lower outer circumferential corner, a radially extending first butt end face having a circumferentially projecting rib, and a radially extending second butt end face opposing the first butt end face and having a circumferentially extending notch for receiving the rib. The lower outer circumferential corner portion has a cut-away portion extending along the entire circumference thereof except at portions contiguous to the first and second butt end faces.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.