Oldham ring of scroll type compressor
US5275543A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 1992 |
| Grant date | Jan 4, 1994 |
| Priority date | — |
| Expiry date | Sep 16, 2012 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF05B2230/20
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An Oldham ring of a scroll type compressor having a swivel scroll of aluminum alloy. The Oldham ring is of cast aluminum alloy and has a pair of projections (a) serving to engage with a pair of guide grooves formed in a surface of the swivel scroll adjacent to a crankshaft. Sliding surfaces of the projections which are to be brought into contact with inner surfaces of the guide grooves are each covered with a metal sheet made of a metal which is different from aluminum and aluminum alloys. It is recommended that the metal sheet has the following thickness (t): t=0.5-2.5 mm, T/20.ltoreq.t.ltoreq.T/4 (where, T represents the widthwise dimension of the projection in the circumferential direction of the Oldham ring). The metal sheet is united with the Oldham ring by insert casting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.