Hydrodynamic lubrication system for piston devices particularly Stirling engines
US4412418A · kind A · utility
11Cited by
3References
21Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 18, 1981 |
| Grant date | Nov 1, 1983 |
| Priority date | — |
| Expiry date | May 18, 2001 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02G2270/80
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An apparatus for effecting the lubrication of expansible chamber devices of the type having a cylinder with a piston reciprocating therein and having fluid flowing in and out of the chamber. The invention is particularly suitable for free piston Stirling engines and pumps. A torque force is applied to the piston causing it to spin sufficiently to entrain and drag along its outer surface some of the fluid in the expansible chamber so as to separate its outer surface from the wall of the cylinder.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.