Stirling engine displacer gas bearing
US4387568A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 14, 1980 |
| Grant date | Jun 14, 1983 |
| Priority date | — |
| Expiry date | Jul 14, 2000 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02G2258/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A gas bearing for the axially reciprocating displacer and power piston members in a free piston Stirling engine includes a bearing sleeve having a pair of interconnected annular pressure plenums formed by ribs on the outer surface of the sleeve which form a seal with the inner walls of a cylinder in which the sleeve is seated. The outer side of the raised ribs provide a second set of interconnecting drain plenums. A source of a high pressure gas, pressurized internally by the engine itself, is connected to the pressure plenum which communicates with the axially reciprocating members through a multitude of narrow orifices. The bearing gas is drained into the second or drained plenum through a large number of larger sized orifices.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.