Oil supply device of scroll compressor
US7204680B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 17, 2004 |
| Grant date | Apr 17, 2007 |
| Priority date | — |
| Expiry date | Jan 1, 2025 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C23/008
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An oil supply device of a scroll compressor includes a pumping unit mounted at a lower side of a rotating shaft and pumping oil stored at a lower portion of a casing according to rotation of the rotating shaft; an oil supply passage formed in a longitudinal direction of the rotating shaft and supplying oil pumped by the pumping unit to each friction portion; an oil channel formed at an upper surface of the main frame and connecting an oil groove formed at the upper surface of the main frame and a pocket formed at the center of the main frame; and an oil guide recess formed to connect the oil groove and the key hole formed at the main frame and guiding oil introduced into the oil groove to the key hole. By supplying oil to the key hole, abrasion between an oldhamring key and the key hold is prevented and noise is reduced, enhancing reliability of the compressor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.