CONTROL DEVICE OF VARIABLE DISPLACEMENT COMPRESSOR AND VARIABLE DISPLACEMENT CONTROL DEVICE OF REFRIGERATING CYCLE

WIPO Patent Application WO/2003/036184

A1

A control device of a variable displacement compressor and a variable displacement control device of a refrigerating cycle capable of providing the optimum responsiveness and stability even under different conditions while improving the efficiency of the compressor in a structure for controlling a control chamber pressure by using a control valve electrically controlled by control signals from the outside without using a pressure sensitive material. The variable displacement compressor (3), wherein a crank chamber pressure is regulated by electrically controlling, by the control signals from the outside, a pressure control valve (2) allowing a pressure to be supplied from a discharge space (27) to a crank chamber (24) and a pressure to be discharged from the crank chamber (24) to a suction space (26) so as to control a discharge capacity, and the gain of a calculation expression for calculating the control signals is varied according to the magnitude of a physical amount affecting an air conditioning state.

JP2002364529	FIXED DISPLACEMENT SWASH PLATE COMPRESSOR
JP2000199479	VARIABLE CAPACITY COMPRESSOR
JP2002147350	CONTROL DEVICE OF VARIABLE DISPLACEMENT TYPE COMPRESSOR

HAYASHI SAKAE (JP)
FURUYA SHUNICHI (JP)
TAKAHASHI YUSUKE (JP)

PCT/JP2002/008722

May 01, 2003

August 29, 2002

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ZEXEL VALEO CLIMATE CONTR CORP (JP)
HAYASHI SAKAE (JP)
FURUYA SHUNICHI (JP)
TAKAHASHI YUSUKE (JP)

F04B27/18; F25B49/02; (IPC1-7): F24F11/02; F04B27/08

JP2001349624A	2001-12-21
JPS6316177A	1988-01-23
JPS6460778A	1989-03-07
JPH076503A	1995-01-10
JP2000012358A	2000-01-14

See also references of EP 1455143A4

Onuki, Kazuyasu (Shibuya 1-chome Shibuya-ku, Tokyo, JP)

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