Global Patent Index - EP 0771948 B1

EP 0771948 B1 20000119 - Capacity control device for variable-capacity compressor

Title (en)

Capacity control device for variable-capacity compressor

Title (de)

Kapazitätsregelvorrichtung für einen Verdichter mit veränderlicher Fördermenge

Title (fr)

Dispositif de réglage de la capacité d'un compresseur à capacité variable

Publication

EP 0771948 B1 20000119 (EN)

Application

EP 96103572 A 19960307

Priority

JP 28314095 A 19951031

Abstract (en)

[origin: EP0771948A1] A capacity control device for variable-capacity compressors is provided with a high-pressure valve portion 36 for opening or closing the communication between the discharge chamber 21 and the crank case 12; a low-pressure vale portion 41 for opening or closing the communication between the suction chamber 20 and the crank case 12; a valve open-close member 35 for opening or closing so as to reverse the open-close relationship between the high-pressure valve portion 36 and the low-pressure valve portion 41 by advancing or retreating; a pressurising chamber 53 for applying pressure to the valve open-close member 35 in a direction that opens the high-pressure valve portion 36 by means of a wider effective pressure-receiving area than that of the high-pressure valve portion 36. The device is driven with only small actuation forces by an electromagnetic solenoid 50 to open or close a communicating path between the discharge chamber 21 and the said pressurising chamber 53. <IMAGE>

IPC 1-7

F04B 27/18

IPC 8 full level

F04C 28/26 (2006.01); F04B 27/08 (2006.01); F04B 27/14 (2006.01); F04B 27/18 (2006.01)

CPC (source: EP)

F04B 27/1804 (2013.01)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL PT SE

DOCDB simple family (publication)

EP 0771948 A1 19970507; EP 0771948 B1 20000119; AT 189042 T 20000215; DE 69606261 D1 20000224; DE 69606261 T2 20000608; ES 2142510 T3 20000416; JP 3490557 B2 20040126; JP H09126124 A 19970513

DOCDB simple family (application)

EP 96103572 A 19960307; AT 96103572 T 19960307; DE 69606261 T 19960307; ES 96103572 T 19960307; JP 28314095 A 19951031