Hermetic electric scroll compressor having a lubricating passage in the orbiting scroll
US5931650A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jun 4, 1997 |
| Grant date | Aug 3, 1999 |
| Priority date | — |
| Expiry date | Jun 4, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C29/023
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A hermetic electric scroll compressor includes a fixed scroll and an orbiting scroll which define therebetween a plurality of compression spaces for compressing fluid introduced via a suction port. The orbiting scroll has a base plate and a shaft portion extending from the base plate toward a crankshaft rotatably supported by a support member. A seal member is disposed between the base plate and the support member to define an inner region and an outer region. The shaft portion is exposed to the inner region, while the outer region communicates with the suction port. The shaft portion is formed with an axial hole open to the inner region, while the base plate is formed with a radial hole open to the outer region. Communication is established between the axial and radial holes via a small-diameter hole so that lubricating oil supplied to the inner region is introduced into the outer region via the small-diameter hole for feeding to the compression spaces via the suction port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.