| 摘要 |
A slant plate type compressor (10) with a capacity or displacement adjusting mechanism is disclosed. The compressor includes a housing (20) having a cylinder block (21) provided with a plurality of cylinders (70) and a crank chamber (22). A piston (71) is slidably fitted within each of the cylinders (70) and is reciprocated by a drive mechanism which includes a member (60) having a surface with an adjustable incline angle. The incline angle is controlled by the pressure situation in the crank chamber (22). The pressure in crank chamber (22) is controlled by control mechanism (400) which comprises a passageway (150) communicating between the crank chamber (22) and a suction chamber (241) and valve device (19) to control the closing and opening of the passageway (150). The valve device (19) includes a valve element (193a) which directly control the closing and opening of passageway, a first valve control device (19) which controls operation of the valve element (193a) in response to pressure in the crank chamber (22), and a second valve control device (29) which controls a predetermined operating point of the first valve control device (19). The operation of the second valve control device (29) is controlled in response to changes in thermodynamic characteristic of the refrigerant circuits. The first and second valve control devices (19, 29) are coupled by a bias spring (196) so as to eliminate a force which interferes with a control of the operating point of the first valve control device (19). |
