Scroll type compressor
US6213741A · kind A · utility
Assignees
Inventors
Key dates
| Filing date | Sep 15, 1998 |
| Grant date | Apr 10, 2001 |
| Priority date | — |
| Expiry date | Sep 15, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04C2230/21
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A performance of a compressor is enhanced and durability of scroll bodies is enhanced by optimizing relief to machining tolerance at a central end part of spiral members for forming the scroll bodies. In a scroll type compressor in which a reinforced portion (for example, a large radius of curvature R) reinforced more than in other root corner portions 5 is provided in a root corner portion 5 at a central end part in which a stress of the two spiral members 10 and 20 is increased, a first relief is formed in a region in which the two spiral members 10 and 20 come into contact with each other where the reinforced portion is applied only to one of the spiral members 10 and 20, and a second relief larger than the first relief is provided in a region in which the two spiral members come into contact with each other at a portion in which the radius of curvature R is provided in both of the two spiral members, thereby reasonably forming reliefs for avoiding interference at the point of contact of two spiral members.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.