Displacement control valve
US6361283B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 6, 2000 |
| Grant date | Mar 26, 2002 |
| Priority date | — |
| Expiry date | Jun 6, 2020 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF04B2027/1859
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A control valve controls the displacement of a variable displacement type compressor. The compressor has a crank chamber, a bleed passage, and a supply passage. An outlet valve portion located on the bleed passage to control the opening of the bleed passage. An inlet valve portion is located on the supply passage to control the opening of the supply passage. A transmission rod extends between the outlet valve portion and the inlet valve portion to connect the outlet valve portion to the inlet valve portion. The transmission rod moves axially. A through hole is located in the inlet valve portion to receive a part of the transmission rod. The through hole constitutes a part of the supply passage. A clearance is formed between the transmission rod and the through hole to constantly connect the discharge pressure zone to the crank chamber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.