EP 1586772 A4 20060816 - CONTROL DEVICE FOR VARIABLE CAPACITY COMPRESSOR
Title (en)
CONTROL DEVICE FOR VARIABLE CAPACITY COMPRESSOR
Title (de)
STEUERVORRICHTUNG FÜR VERDICHTER MIT VARIABLER LEISTUNG
Title (fr)
DISPOSITIF DE COMMANDE DESTINE A UN COMPRESSEUR A DEBIT VARIABLE
Publication
Application
Priority
- JP 0314428 W 20031113
- JP 2002380395 A 20021227
Abstract (en)
[origin: EP1586772A1] A control device for a variable-capacity compressor, the discharge capacity of which decreases as the pressure in a crankcase 24 rises and increases as the pressure in the crankcase 24 becomes lower, adopts a structure that includes a supply passage 40 that allows a discharge chamber 27 and the crankcase 24 to communicate with each other and a bleed passage 41 that allows the crankcase 24 and an intake chamber 26 to communicate with each other so as to adjust the pressure in the crankcase 24 via the supply passage 40 and the bleed passage 41. The structure further includes a differential pressure regulating valve 44 that allows the crankcase 24 and the intake chamber 26 to communicate with each other when the difference between the pressure in the discharge chamber 27 and the pressure in another area (the intake chamber 26 or the crankcase 24) becomes equal to or smaller than a predetermined value. The structure, which satisfies the need for power efficiency through higher efficiency achieved in the compressor, can be adopted in a clutchless variable-capacity compressor. The structure also assures a desirable startup response in the compressor. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 27/18 (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 2027/1845 (2013.01); F04B 2027/185 (2013.01); F04B 2027/1868 (2013.01); F04B 2027/1872 (2013.01)
Citation (search report)
- [X] US 4946350 A 19900807 - SUZUKI SHINICHI [JP], et al
- [XA] US 4723891 A 19880209 - TAKENAKA KENJI [JP], et al
- [A] EP 1024286 A2 20000802 - TOYODA AUTOMATIC LOOM WORKS [JP]
- [A] EP 1081378 A2 20010307 - TOYODA AUTOMATIC LOOM WORKS [JP]
- See references of WO 2004061304A1
Designated contracting state (EPC)
DE FR
DOCDB simple family (publication)
EP 1586772 A1 20051019; EP 1586772 A4 20060816; EP 1586772 B1 20081001; DE 60323878 D1 20081113; JP 4501112 B2 20100714; JP WO2004061304 A1 20060511; WO 2004061304 A1 20040722
DOCDB simple family (application)
EP 03774013 A 20031113; DE 60323878 T 20031113; JP 0314428 W 20031113; JP 2004564470 A 20031113