Sealing ring assembly for a single sealing ring piston
US5921553A · kind A · utility
Inventor
Key dates
| Filing date | Sep 2, 1997 |
| Grant date | Jul 13, 1999 |
| Priority date | — |
| Expiry date | Sep 2, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J9/16
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sealing ring assembly for installation in a single sealing ring groove of a piston that is for use in an internal combustion engine, hydraulic cylinder piston, or the like, and replaces the top and second ring seals as are presently utilized, which sealing ring assembly is for curtailing leakage between the piston outer surface and surface of a cylinder containing the piston. The sealing ring assembly consists of a first, primary or main ring that is for fitting in a piston sealing ring groove and is cut back along top and bottom surfaces to provide slots that are each receive a flat rail fitted therein, with the assembly to be contained within the sealing ring groove. The sealing ring assembly can be manufactured in various widths from one quarter (1/4) inch to one (1) millimeter, and the first, primary or main ring preferably has an end gap cut formed at a ninety (90) degree angle thereacross, and the rails preferably each have an end gap cut formed at a forty-five (45) degree angle thereacross.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.