Relative combination of a cylinder and a seal ring for internal combustion engines
US4079720A · kind A · utility
6Cited by
4References
1Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 11, 1976 |
| Grant date | Mar 21, 1978 |
| Priority date | — |
| Expiry date | May 11, 1996 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2203/0817
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
Improved wear characteristics of a seal ring for a piston and a mating cylinder are obtained by using selected materials for the seal ring and cylinder. The cylinder is characterized by having a surface coating of Ni or Ni alloy containing 3% to 8% of SiC having a particle size of from 0.5.mu. to 5.mu., or by having a base member of Al or Al alloy containing 13% to 23% of Si having a particle size of 5.mu. to 8.mu.. The seal ring is characterized by having a Ni or Ni alloy containing 2% to 10% of SiC having a particle size of 0.5.mu. to 5.mu..
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.