F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
230/77
F04B 25/04 (2006.01) F04B 27/18 (2006.01)
Patent
CA 2037968
A slant plate type compressor with a capacity or displacement adjusting mechanism is disclosed. The compressor includes a housing having a cylinder block provided with a plurality of cylinders and a crank chamber. A piston is slidably fitted within each of the cylin- ders and is reciprocated by a drive mechanism which includes a slant plate having a surface with an adjustable incline angle. The incline angle is controlled according to the pressure in the crank chamber. The pressure in the crank chamber is controlled by a control mecha- nism which comprises a first passageway linking the crank chamber and the suction chamber, and a valve device which controls the clos- ing and opening of the first passageway. The valve device includes a valve element which directly controls the closing and opening or the first passageway, a first valve control device which controls the posi- tion of the valve element in response to pressure in the crank cham- ber, and a second valve control device which include a second pas- sageway linking the crank chamber and the discharge chamber and an actuator disposed in the second passageway. The second valve control device controls the predetermined crank pressure operating point of the first valve control device. The operation of the second valve con- trol device is controlled in response to changes, in the thermodynamic characteristics of the refrigerant circuit so as to open and close the second passageway.
Sakamoto Seiichi
Terauchi Kiyoshi
Sanden Corporation
Sim & Mcburney
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