Piston-type compressor
US9169835B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 2010 |
| Grant date | Oct 27, 2015 |
| Priority date | — |
| Expiry date | Aug 6, 2031 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B39/04
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Provided is a piston type compressor which can enhance cooling of internal parts housed in a crank chamber, while effectively reducing an outflow of oil to the outside of a compressor by effectively performing a centrifugal separating operation due to the rotation of a shaft. The compressor includes: a first suction path which directly introduces a working fluid flowed from a suction port 30 into suction chambers 27a, 27b without via the crank chamber 7; and a second suction path which introduces the working fluid flowed from the suction port 30 into the suction chambers 27a, 27b via the crank chamber 7, and the second suction path includes: an oil separation passage 32 where a working fluid is introduced into the suction chambers 27a, 27b from the crank chamber 7 via holes formed in the shaft; and a bypass passage 33 where the working fluid is introduced into the suction chambers 27a, 27b from the crank chamber 7 through the cylinder blocks 1, 2 without via the shaft 12.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.