Seal assembly for a rotary device
US4735560A · kind A · utility
Inventors
Key dates
| Filing date | Feb 25, 1987 |
| Grant date | Apr 5, 1988 |
| Priority date | — |
| Expiry date | Feb 25, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01C19/08
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A seal assembly for an outer envelope trochoidal rotary device having a rotor that planetates around a housing is provided. The seal arrangement comprises a series of side seals disposed in side walls in the housing, the side seals being interconnected by button seals disposed in the side walls of the housing between side seals. The side seals and button seals are spring biased outwardly against the rotor. Each side seal includes a pair of identical oppositely disposed seal strips having an elongated body member and a triangular portion. The elongated body member includes a triangularly shaped relieved portion that has a shape corresponding to a side of the triangular portion. The seal strips are interconnected between two button seals so that the triangular portion of a first seal strip abuts a first button seal and the triangular portion of a second seal strip abuts a second button seal. The button seal includes a relieved area.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.