Control valve device for variable capacity type swash plate...

Details Control valve device for variable capacity type swash plate... Control valve device for variable capacity type swash plate...

2007-09-25

2007-09-25

Rodriguez, William H. (Department: 3746)

Pumps

Condition responsive control of drive transmission or pump...

Adjustable cam or linkage

C417S269000

Reexamination Certificate

active

10793217

ABSTRACT:
There is disclosed a control valve device for a variable capacity type swash plate compressor for use in an air conditioning system. The device comprises an introducing passage for connecting a discharge chamber to a crank chamber in the compressor, and a control valve for adjusting a pressure in the crank chamber in an autonomous manner to control a discharge capacity of the compressor. The control valve includes a valve unit for opening/closing the introducing passage and an electromagnetic solenoid assembly for operating the valve unit. The control valve device further comprises a resistance variable mechanism for varying a resistance of the magnetic circuit in the assembly in accordance with a differential pressure of the refrigerant between two points defined between the compressor and a condenser of the system.

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