EP 2034183 A2 20090311 - Suction structure in piston type compressor
Title (en)
Suction structure in piston type compressor
Title (de)
Saugstruktur in einem Kolbenverdichter
Title (fr)
Structure d'aspiration dans un compresseur de type à piston
Publication
Application
Priority
JP 2007229239 A 20070904
Abstract (en)
A suction structure allows refrigerant from a suction pressure region in a piston type compressor. The suction structure includes a shifting device, a bleed passage, and a check valve. The shifting device has a valve body, a return spring, a backpressure chamber, and a backpressure passage. The valve body is movable between a connecting position and a disconnecting position. The return spring urges the valve body from the connecting position toward the disconnecting position. The backpressure chamber is defined by the valve body. The backpressure passage communicates with the suction pressure region and the backpressure chamber. The bleed passage communicates with the suction pressure region and the backpressure chamber. The check valve allows a fluid to flow from the backpressure chamber into the bleed passage.
IPC 8 full level
F04B 27/18 (2006.01)
CPC (source: EP US)
F04B 27/1804 (2013.01 - EP US); F04B 2027/1859 (2013.01 - EP US)
Citation (applicant)
- JP H07119631 A 19950509 - NIPPON DENSO CO
- JP 2006083835 A 20060330 - TOYOTA IND CORP
- JP S6488064 A 19890403 - HITACHI LTD, et al
- JP 2000145629 A 20000526 - TGK CO LTD
- JP H07119631 A 19950509 - NIPPON DENSO CO
- JP H07139474 A 19950530 - TOYODA AUTOMATIC LOOM WORKS
- JP 2000145629 A 20000526 - TGK CO LTD
Designated contracting state (EPC)
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MT NL NO PL PT RO SE SI SK TR
Designated extension state (EPC)
AL BA MK RS
DOCDB simple family (publication)
EP 2034183 A2 20090311; BR PI0805053 A2 20100727; CN 101382127 A 20090311; JP 2009062834 A 20090326; US 2009142210 A1 20090604
DOCDB simple family (application)
EP 08163561 A 20080903; BR PI0805053 A 20080903; CN 200810147583 A 20080903; JP 2007229239 A 20070904; US 23148808 A 20080902