Refrigerant compressor
US5997257A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jan 20, 1998 |
| Grant date | Dec 7, 1999 |
| Priority date | — |
| Expiry date | Jan 20, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B39/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A refrigerant compressor has a first high pressure chamber formed in the rear head, a second high pressure chamber formed on the outer peripheral surface of the cylinder block, and a discharge passage communicating between the two. The discharge passage comprises at least one through hole through which a corresponding through bolt extends, at least one communication passage between the through hole and the first high pressure discharge chamber, at least one communication hole in the cylinder block communicating the through hole to the second high pressure chamber. Alternate embodiments include an oil reservoir and means for separating lubricant carried by the fluid flow within the discharge passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.