End face mechanical shaft seal for use in hydraulic machines and seal ring assembly for use in the shaft seal
US4746268A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Jul 29, 1987 |
| Grant date | May 24, 1988 |
| Priority date | — |
| Expiry date | Jul 29, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04D29/126
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An end face mechanical shaft seal for use in a hydraulic machine includes a seal ring assembly detachably secured to a seal casing and having a sealing face which makes a sliding and fluid-tight contact with an annular seat face presented by a flange on the rotor shaft. The seal ring assembly is of a cartridge type which includes a ring casing having an annular groove formed in one end surface thereof and a seal ring partly received in the groove and fixed to the ring casing by an adhesive. Each of the ring casing and the seal ring is constituted by a plurality of arcuate sections or segments which are connected together in the circumferential direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.