EP 1363021 A1 20031119 - COMPRESSION DISPLACEMENT CONTROLLER OF REFRIGERATING CYCLE
Title (en)
COMPRESSION DISPLACEMENT CONTROLLER OF REFRIGERATING CYCLE
Title (de)
REGLER FÜR DEN VERDICHTUNGSGRAD EINES KÜHLMITTELS IN EINEM KÜHLKREISLAUF
Title (fr)
CONTROLEUR DE CYLINDREE DE COMPRESSION POUR CYCLE FRIGORIFIQUE
Publication
Application
Priority
- JP 0200364 W 20020118
- JP 2001011513 A 20010119
- JP 2001123750 A 20010423
Abstract (en)
In a compression capacity control device for a refrigeration cycle including a variable displacement compressor (10) that compresses refrigerant sucked from a suction chamber (3) communicating with a suction line (1), and discharges the refrigerant into a discharge chamber (4) communicating with a discharge line (2), while varying the delivery quantity of the refrigerant by changing pressure in a pressure-regulating chamber (12) which has the pressure therein controlled by an electromagnetic control valve (20), the electromagnetic control valve (20) arranged between the discharge chamber (4) and the pressure-regulating chamber (12) is held in an open state to place the variable displacement compressor (10) in a state with the minimum delivery quantity within a variable range, when the electromagnetic control valve (20) is in a deenergized state. This makes it possible to dispense with a clutch for inhibiting operation of the compressor, thereby largely reducing the device cost. <IMAGE>
IPC 1-7
IPC 8 full level
F04B 49/06 (2006.01); B60H 1/32 (2006.01); F04B 27/14 (2006.01); F04B 27/18 (2006.01); F04B 49/22 (2006.01)
CPC (source: EP US)
F04B 27/1804 (2013.01 - EP US); F04B 49/225 (2013.01 - EP US); F04B 2027/1813 (2013.01 - EP US); F04B 2027/1827 (2013.01 - EP US); F04B 2027/1895 (2013.01 - EP US)
Citation (search report)
See references of WO 02057628A1
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
WO 02057628 A1 20020725; EP 1363021 A1 20031119; JP 2002285973 A 20021003; JP 4070425 B2 20080402; US 2003035733 A1 20030220
DOCDB simple family (application)
JP 0200364 W 20020118; EP 02715833 A 20020118; JP 2001123750 A 20010423; US 21755602 A 20020813