EP 1024286 A3 20010207 - 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)
[origin: EP1024286A2] 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 27/14 (2006.01); F04B 27/18 (2006.01); F04B 49/00 (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 (search report)
- [Y] DE 19733099 A1 19980212 - TOYODA AUTOMATIC LOOM WORKS [JP]
- [Y] EP 0498552 A1 19920812 - SANDEN CORP [JP]
- [A] US 5836748 A 19981117 - KAWAGUCHI MASAHIRO [JP], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE
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