High pressure sealing connection with metal seal
US4575106A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 21, 1984 |
| Grant date | Mar 11, 1986 |
| Priority date | — |
| Expiry date | Sep 21, 2004 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/0887
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A high pressure sealing connection for sealing between coaxially aligned members (22, 10) which are connected by metal bolt means having a different coefficient of thermal expansion from the aligned members. The connection comprises a metallic sealing ring (40) having at its largest external diameter a curved arcuate peripheral surface 52 characterized by a center of curvature which is co-diametral with the center of the seal ring but may be of greater or lesser radius than the radius of the ring. At its inner periphery, upper and lower flanges (61, 62) extend inwardly and perpendicularly to the axis of the ring. The coaxially aligned members (22, 10) are provided with recesses defined by opposed internal frusto-conical sealing surfaces (41, 42) at their adjoining ends, each tapering inwardly from the end of the member to an annular shoulder (43, 44) in the bore of the aligned member. The frusto-conical surfaces (41, 42) are of equal taper in the range of 5 degrees to 20 degrees. Drawing the coaxially aligned members together by suitable bolt means (31) results in a compression of ring (40) and a sealing relationship between the ring and the aligned members which is enhanced by flu…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.