Mechanical face seal with minute pores in sliding surface
US4416458A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 1982 |
| Grant date | Nov 22, 1983 |
| Priority date | — |
| Expiry date | Sep 17, 2002 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16J15/3412
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A mechanical seal having a fixed member airtightly fixed along the outer circumference thereof in a bearing house formed in the housing of a compressor, a support member mounted on the rotary shaft of the compressor received through the bearing house and supported rotatably in the housing, a rotary member airtightly mounted along the inner circumference thereof on the rotary shaft and a spring disposed between the rotary member and the support member to press the rotary member against the fixed member in the axial direction. The sliding surface of the rotary member to be in sliding contact with the sliding surface of the fixed member has a hardness of Hv 350 and above and minute pores of 30 .mu.m and less in maximum major diameter to retain lubricating oil therein so that the housing of the compressor is sealed to prevent leakage of the gas and the lubricating oil contained within the housing through the bearing house.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.