EP 1764505 A1 20070321 - Control valve for clutch type variable displacement compressor
Title (en)
Control valve for clutch type variable displacement compressor
Title (de)
Steuerungsventil für einen Verdichter mit Kupplung mit variabler Fördermenge
Title (fr)
Soupape de réglage pour un compresseur à débit variable avec embrayage
Publication
Application
Priority
JP 2005266147 A 20050914
Abstract (en)
A control valve for a clutch type variable displacement compressor includes a liquid-discharge passage for connecting a second port in communication with a control-pressure chamber of the compressor to a third port in communication with the suction-pressure region of the compressor. Opening and closing the liquid-discharge passage are controlled by movement of a pressure-sensing member of a pressure-sensing mechanism. The pressure-sensing member is placed such that the liquid-discharge passage is opened while pressure equalization inside the compressor at a stop of the compressor is maintained in starting the compressor from its stop state. The pressure-sensing member is moved in a direction which causes the liquid-discharge passage to be closed when a pressure in the suction-pressure region is lowered and reaches a predetermined pressure as the compressor is started.
IPC 8 full level
F04B 27/18 (2006.01)
CPC (source: EP US)
F04B 27/1804 (2013.01 - EP US)
Citation (search report)
- [X] EP 1024286 A2 20000802 - TOYODA AUTOMATIC LOOM WORKS [JP]
- [X] EP 1081378 A2 20010307 - TOYODA AUTOMATIC LOOM WORKS [JP]
- [X] US 6010312 A 20000104 - SUITOU KEN [JP], et al
Designated contracting state (EPC)
DE FR IT
Designated extension state (EPC)
AL BA HR MK YU
DOCDB simple family (publication)
EP 1764505 A1 20070321; EP 1764505 B1 20080528; DE 602006001335 D1 20080710; JP 2007077863 A 20070329; US 2007059183 A1 20070315
DOCDB simple family (application)
EP 06120172 A 20060906; DE 602006001335 T 20060906; JP 2005266147 A 20050914; US 52097006 A 20060913