Angled gap compression rings with end relief
US6715767B1 · kind B1 · utility
15Cited by
19References
8Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 12, 2002 |
| Grant date | Apr 6, 2004 |
| Priority date | — |
| Expiry date | Sep 12, 2022 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J9/14
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An engine piston compression ring designed to reduce the negative effects of ring end butting and reduce blowby. The compression ring has a gap forming an angle with a longitudinal axis of the ring or with a radius drawn from the axis. A relieved portion is provided along the upper or inner side of the ring adjacent one end, depending upon the direction of the gap angle. The relieved portion slopes along the upper or inner side toward the one end where the longitudinal thickness of the ring is smallest.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.