Variable displacement compressor with drain passage
US9964102B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 19, 2014 |
| Grant date | May 8, 2018 |
| Priority date | — |
| Expiry date | Apr 4, 2035 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B27/1804
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A variable displacement compressor includes a swash plate, a housing and a displacement control valve. The housing has a crank chamber where the swash plate is disposed, a discharge chamber and a suction chamber. The housing has plural bolt holes and is formed by separate members fastened together by plural bolts inserted through the bolt holes. The displacement control valve has a first valve member movable to connect the crank chamber and the discharge chamber, controlling the position of the first valve member to vary compressor displacement. The displacement control valve has a valve chamber and a second valve member serving to connect the crank chamber and the suction chamber in the valve chamber. The valve chamber is connected to the crank chamber by a drain passage part of which serves as the bolt hole located at the lowest of the plural bolt holes when the compressor is installed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.