Seals for rotary mechanisms
US3990819A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 26, 1975 |
| Grant date | Nov 9, 1976 |
| Priority date | — |
| Expiry date | Sep 26, 1995 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01C19/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An improved rotary mechanism having a housing defining an operating chamber, a shaft journalled in the housing and extending through the chamber, a rotor journalled on the shaft and within the operating chamber, at least one seal receiving groove in the rotor and a seal within the groove having a surface sealingly engaging the housing. An elastomeric O-ring is disposed within the groove and sealingly engages the sides of the groove. It is also disposed adjacent the seal oppositely from the sealing surface. A conduit is provided for directing fluid under pressure to the interior of the O-ring to cause the same to bias the seal against the housing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.