Displacement control valve for variable displacement compressor
US8152482B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Oct 23, 2008 |
| Grant date | Apr 10, 2012 |
| Priority date | — |
| Expiry date | Dec 5, 2030 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2027/1854
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A displacement control valve for a variable displacement compressor. The displacement control valve includes a drive force transmission body, a pressure sensitive chamber, an internal passage, and a valve body. The valve body includes an annular seal which is contactable with a valve seat surface facing toward the first valve body. The drive force transmission body includes a drive rod and a valve body structure having a shaft passage and forming the first valve body. The drive rod is fitted to the shaft passage and coupled to the valve body structure so as to form a gap passage between an outer surface of the drive rod and a wall surface of the shaft passage. The internal passage includes a recess arranged radially inward from the annular seal, the shaft passage, and the gap passage. The gap passage is in direct communication with the recess.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.