Apparatus for preventing the rise of oil in a stirling engine
US4711091A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 18, 1987 |
| Grant date | Dec 8, 1987 |
| Priority date | — |
| Expiry date | Feb 18, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05C2225/08
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
An apparatus for preventing lubricating oil from rising to the working spaces of a Stirling engine has a first and a second oil-absorbing member disposed within a cylindrical member in which a rod reciprocates. The first oil-absorbing member is secured to the rod with its outer periphery in sliding contact with the inner wall of the cylindrical member, and the second oil-absorbing member is secured to the cylindrical member with its inner periphery in sliding contact with the rod. A first baffle plate having a hole which is larger than the rod is secured to the cylindrical member immediately below and in intimate contact with the second oil-absorbing member. The first baffle plate makes the flow speed of gas through the second oil-absorbing member higher from above to below than from below to above. As a result, oil is continually blown downwards by a blast of accelerated gas and is returned to the crankcase of the engine.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.