A variable capacity type compressor has a tiltable swash plate and pistons. A control valve is arranged to change the pressure in the crank chamber, to vary the capacity of the compressor by changing the inclination angle of the swash plate by changing the pressure in the crank chamber. The control valve...http://www.google.ca/patents/US20010003573?utm_source=gb-gplus-sharePatent US20010003573 - Control valve and variable capacity type compressor having control valve
