Abstract: Provided is a variable displacement compressor capable of preventing intrusion of foreign matter into a second control valve. A variable displacement compressor 100 is equipped with a first control valve 300 controlling the opening degree of a supply passage 145, a check valve 350, a second control valve 400 controlling the opening degree of a discharge passage 146, and a back-pressure relief passage 147. The second control valve 400 has a back-pressure chamber 410 communicating with an intermediate supply passage 145b1, a valve chamber 420 in which a valve hole 103d and a discharge hole 431a are open and which constitutes a part of the discharge passage 146, a dividing member 430 dividing the back-pressure chamber 410 and the valve chamber 420 from each other, and a spool 440.

Abstract: Provided is a variable displacement compressor capable of preventing intrusion of foreign matter into a second control valve. A variable displacement compressor 100 is equipped with a first control valve 300 controlling the opening degree of a supply passage 145, a check valve 350, a second control valve 400 controlling the opening degree of a discharge passage 146, and a back-pressure relief passage 147. The second control valve 400 has a back-pressure chamber 410 communicating with an intermediate supply passage 145b1, a valve chamber 420 in which a valve hole 103d and a discharge hole 431a are open and which constitutes a part of the discharge passage 146, a dividing member 430 dividing the back-pressure chamber 410 and the valve chamber 420 from each other, and a spool 440.

Abstract: A valve device for a compressor is improved to suppress noise and a decrease in compressor efficiency caused by pressure pulsations, and also to prevent degradation in compressor performance by ensuring durability. In a valve device of a reed valve structure including: a valve hole 103a or 103b formed in a valve plate 103; a valve seat 103e formed in an outer peripheral portion of the valve hole so as to protrude in a boss shape to a groove 103f formed around an outside thereof; and a valve body 151 having a proximal end 151A connected to the valve plate and a distal end 151B allowed to freely come into and out of contact with a seat surface of the valve seat, a plurality of ribs 103g extend radially from a peripheral wall of the valve seat to an outer peripheral wall of the groove.

Abstract: A valve device for a compressor is improved to suppress noise and a decrease in compressor efficiency caused by pressure pulsations, and also to prevent degradation in compressor performance by ensuring durability. In a valve device of a reed valve structure including: a valve hole 103a or 103b formed in a valve plate 103; a valve seat 103e formed in an outer peripheral portion of the valve hole so as to protrude in a boss shape to a groove 103f formed around an outside thereof; and a valve body 151 having a proximal end 151A connected to the valve plate and a distal end 151B allowed to freely come into and out of contact with a seat surface of the valve seat, a plurality of ribs 103g extend radially from a peripheral wall of the valve seat to an outer peripheral wall of the groove.