Anti-rotation coupling for a scroll machine
US4655696A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Nov 14, 1985 |
| Grant date | Apr 7, 1987 |
| Priority date | — |
| Expiry date | Nov 14, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/4924
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
This invention is an improved "Oldham coupling" for use in a scroll machine to prevent angular rotation of one of the scroll members relative to the other. The coupling is of simplified one-piece construction that can be stamped from sheet metal in a single operation. The preferred embodiment is an oval-shaped stamped ring having four tabs extending from its perimeter at 90.degree. intervals. Two of the tabs, at opposite sides of the ring, slidingly engage slots in one of the orbiting scroll members while the other two tabs slidingly engage slots disposed either in the stationary frame of the scroll machine or in the other scroll member.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.