EP 1033490 A2 20000906 - Control valve for variable displacement compressor
Title (en)
Control valve for variable displacement compressor
Title (de)
Kontrollventil für variablen Verdrängungskompressor
Title (fr)
Soupape de contrôle pour compresseur à capacité variable
Publication
Application
Priority
JP 5249599 A 19990301
Abstract (en)
A displacement control valve for controlling the amount of gas flowing through a bleed passage (27A, 27B) of a compressor to adjust pressure in a crank chamber (5) of the compressor. The control valve includes a housing (60), a pressure sensitive member, or diaphragm (57), which is arranged in the housing (60), and an actuator (54) extending from the diaphragm (57) and arranged in the housing (60). A valve body (51) is formed integrally with the distal end of the actuator (54). A pressure receiving body (53) is provided at the proximal end of the actuator (54). The diaphragm (57) drives the actuator (54) in accordance with a suction pressure. The pressure receiving body (53) urges the diaphragm (57) in a single direction in accordance with a discharge pressure. The diameter (or cross-sectional are) of the actuator (54) decreases in a stepped-like manner in the axial direction. This simplifies manufacture and of the actuator (54) and facilitates assembly. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 27/14 (2006.01); F04B 27/18 (2006.01); F04B 49/00 (2006.01)
CPC (source: EP)
F04B 27/1804 (2013.01); F04B 2027/1813 (2013.01); F04B 2027/1831 (2013.01); F04B 2027/185 (2013.01)
Citation (applicant)
JP H0552182 A 19930302 - TAIHEIYO KOGYO KK
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 1033490 A2 20000906; EP 1033490 A3 20010110; JP 2000249051 A 20000912
DOCDB simple family (application)
EP 00104151 A 20000229; JP 5249599 A 19990301