Global Patent Index - EP 0945618 A3

EP 0945618 A3 2000-03-01 - Displacement control valve for use in a variable displacement compressor

Title (en)

Displacement control valve for use in a variable displacement compressor

Title (de)

Hubregelungsventil zur Verwendung in einem Kompressor mit veränderlicher Fördermenge

Title (fr)

Soupape de contrôle de déplacement utilisée dans un compresseur à capacité variable

Publication

EP 0945618 A3 (EN)

Application

EP 99105500 A

Priority

JP 9675098 A

Abstract (en)

[origin: EP0945618A2] In a displacement control valve for use in a variable displacement compressor in which a displacement is variable with opening and closing of a communication passage between a crank chamber and a suction chamber, an operating point control arrangement (21, 23, 24) transmits discharge pressure of a discharge chamber to a valve body (7) to control an operating point of the valve body. A pressure transmission control arrangement (25, 26, 27, 28) is interposed between the discharge chamber and the operating point control arrangement and controls transmission of the discharge pressure to the operating point control arrangement. A pressure sensing member (6) senses, as sensed pressure, one of suction pressure and crank pressure to have a size variable in response to the sensed pressure. The valve body operates in response to the size of the pressure sensing member to open and close the communication passage. <IMAGE>

IPC 1-7 (main, further and additional classification)

F04B 27/18

IPC 8 full level (invention and additional information)

F04B 49/00 (2006.01); F04B 27/08 (2006.01); F04B 27/14 (2006.01); F04B 27/18 (2006.01)

CPC (invention and additional information)

F04B 27/1804 (2013.01); F04B 2027/1813 (2013.01); F04B 2027/1831 (2013.01); F04B 2027/185 (2013.01)

Citation (search report)

Designated contracting state (EPC)

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

EPO simple patent family

EP 0945618 A2 19990929; EP 0945618 A3 20000301; EP 0945618 B1 20020619; DE 69901855 D1 20020725; DE 69901855 T2 20021128; JP H11280658 A 19991015

INPADOC legal status


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