EP 1033489 A3 20010110 - Displacement control valve for variable displacement type compressors
Title (en)
Displacement control valve for variable displacement type compressors
Title (de)
Kontrollventil für variable Verdrängungskompressoren
Title (fr)
Soupape de contrôle pour compresseurs à capacité variable
Publication
Application
Priority
JP 5249499 A 19990301
Abstract (en)
[origin: EP1033489A2] A control valve for a variable displacement type compressor includes a movable body (43) supported by the housing (38) such that the movable body (43) moves in the housing (38). The movable body (43) includes a first valve hole (46) that forms part of a bleed passage (30). A first valve body (41) adjusts the opening of the first valve hole (46). The first valve body (41) abuts against the movable body (43) such that the first valve hole (46) is closed. A second valve hole (49) extends in the housing (38) and forms part of a supply passage (31). A second valve body (48) adjusts the opening of the second valve hole (49). The second valve body (48) is movable integrally with the movable body (43). When the movable body (43) is located at an initial position, the second valve body (48) closes the second valve hole (49). However, when the first valve body (41) separates the movable body (43) from the initial position while abutting against the movable body (43), the second valve body (48) is moved to open the second valve hole (49). In this control valve, the first valve hole (46) and the second valve hole (49) are never open at the same time. Furthermore, the control valve controls the compressor displacement with high accuracy and an responsiveness. <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 2027/1827 (2013.01); F04B 2027/1831 (2013.01); F04B 2027/1854 (2013.01); F04B 2027/1859 (2013.01)
Citation (search report)
- [DA] US 5332365 A 19940726 - TAGUCHI YUKIHIKO [JP]
- [A] EP 0498552 A1 19920812 - SANDEN CORP [JP]
- [A] US 4606705 A 19860819 - PAREKH DINESH V [US]
- [A] US 4860549 A 19890829 - MURAYAMA KOJI [JP]
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 1033489 A2 20000906; EP 1033489 A3 20010110; JP 2000249050 A 20000912; JP 3750397 B2 20060301
DOCDB simple family (application)
EP 00104150 A 20000229; JP 5249499 A 19990301