EP 1024286 A2 20000802 - Control valve for variable displacement compressor
Title (en)
Control valve for variable displacement compressor
Title (de)
Kontrollventil für einen verstellbaren Taumelscheibenverdichter
Title (fr)
Soupape de contrôle pour un compresseur à plateau en biais à capacité variable
Publication
Application
Priority
JP 2144099 A 19990129
Abstract (en)
A displacement control valve adjusts the pressure in a crank chamber (5) of a compressor to vary the displacement of the compressor. The control valve has a first valve mechanism (60), a second valve mechanism (70) and a solenoid mechanism (80). The solenoid mechanism (80) independently actuates the first and second valve mechanisms (60, 70). The first valve mechanism (60) selectively opens and closes a supply passage (28) of the compressor. The second valve mechanism (70) adjusts the flow rate of gas through a bleed passage (27) of the compressor. The second valve mechanism (70) includes a second valve opening (72), a second valve element (73), a bellows (76) and a second plunger (83). The second valve element (73) and the bellows (76) are accommodated in a single pressure chamber (71). The pressure of a suction chamber is introduced to the pressure chamber (71). The control valve has a relatively simple structure and is thus inexpensive and compact. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 49/00 (2006.01); F04B 27/14 (2006.01); F04B 27/18 (2006.01); F16K 17/06 (2006.01); F16K 31/06 (2006.01)
CPC (source: EP)
F04B 27/1804 (2013.01); F04B 2027/1813 (2013.01); F04B 2027/1827 (2013.01); F04B 2027/1831 (2013.01); F04B 2027/1854 (2013.01); F04B 2027/1859 (2013.01)
Citation (applicant)
- JP H0599136 A 19930420 - SANDEN CORP
- JP H10103249 A 19980421 - TOYODA AUTOMATIC LOOM WORKS [JP]
Designated contracting state (EPC)
DE FR IT
DOCDB simple family (publication)
EP 1024286 A2 20000802; EP 1024286 A3 20010207; JP 2000220576 A 20000808; JP 3899719 B2 20070328
DOCDB simple family (application)
EP 00101797 A 20000128; JP 2144099 A 19990129