A hinge assembly for coupling a rotor assembly to a swash plate assembly in a variable displacement compressor includes a hub integrally formed with the swash plate assembly and a pair of spaced part arms coupled to the hub and extending outwardly therefrom. Each of the arms having an aperture formed in a distal end thereof. At least one support member extending from the rotor assembly and having a slot formed therein. A hinge pin is slideably received in the slot of the at least one support member and received in the aperture of each of the arms to hingedly couple the arms to the at least one support member.

A 3D-printed oil separation assembly for use in a reciprocating compressor is provided. The compressor includes a suction chamber, a crankcase chamber, and at least one partition member at least partially separating the suction chamber and the crankcase chamber. The at least one partition member further includes at least one opening. The 3D-printed oil separation assembly comprises a coalescing structure positioned within the crankcase chamber adjacent the at least one partition member at the at least one opening; and at least one securing structure secured in operable relation with the at least one demisting structure so as to secure the coalescing structure relative to the opening. The coalescing structure comprises at least one structure selected from the group consisting of a baffled structure, a demisting structure, and combinations thereof. At least a portion of the coalescing structure is 3D-printed.

In a refrigerant compressor comprising an overall housing with a motor housing portion, in which there is arranged a motor chamber having, provided therein, an electric motor comprising a stator and a rotor, and with a compressor housing portion which has a compressor unit, in order to be able to mount the stator as easily as possible it is proposed that the stator is mounted in the motor housing portion by means of supporting elements inserted into the motor housing portion, which supporting elements on the one hand abut against a stator-receiving surface of the motor housing portion and on the other hand surround the stator inserted into the supporting elements on its outer side and support it spring-elastically relative to the stator-receiving surface.

A piston type compressor has a main housing including a cylinder housing. The cylinder housing has a central bore for receiving a shaft therein through a first surface thereof and a plurality of bores configured for receiving a plurality of pistons therein through the first surface thereof. An inlet is configured for conveying a primary fluid to the plurality of bores. An outlet is configured for conveying the primary fluid from the plurality of bores. A plurality of passages is separate from the inlet and the outlet. Each of the plurality of passages is formed in the main housing and is configured for conveying a supplemental fluid to one of the plurality of bores.

A piston type compressor has a main housing including a cylinder housing. The cylinder housing has a central bore for receiving a shaft therein through a first surface thereof and a plurality of bores configured for receiving a plurality of pistons therein through the first surface thereof. An inlet is configured for conveying a primary fluid to the plurality of bores. An outlet is configured for conveying the primary fluid from the plurality of bores. A plurality of passages is separate from the inlet and the outlet. Each of the plurality of passages is formed in the main housing and is configured for conveying a supplemental fluid to one of the plurality of bores.

A capacity control valve includes a valve housing provided a discharge port through which a discharge fluid of discharge pressure Pd passes, a suction port through which a suction fluid of suction pressure Ps passes, and a control port through which a control fluid of control pressure Pc passes, a rod configured to be driven by a solenoid, a main valve formed by a main valve seat and a main valve element and configured for opening and closing a communication between the discharge port and the control port in accordance with a movement of the rod, and a CS valve provided between the control port and the suction port and controlled by a dynamic pressure of a fluid flowing from the discharge port to the control port at an opening state of the main valve.

A multi-stage compressor includes a compression module configured to compress a refrigerant therein through reciprocation of a plurality of pistons provided in a front housing, a rear housing coupled to the front housing to define an internal space between the front housing and the rear housing; a separation plate located between the front housing and the rear housing to separate the internal space between the front housing and the rear housing into a front space and a rear space; and a partition wall coupled to the rear housing to partition the rear space into an injection space before a refrigerant injected thereinto is primarily compressed, a primary discharge space from which the refrigerant is discharged in a primary compressed state by some of the pistons, and a secondary discharge space from which the primary compressed refrigerant is discharged.

A spool operation failure due to foreign matter contamination is prevented. A variable displacement compressor 100 includes 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 includes a back pressure chamber 410 communicating with an intermediate supply passage 145b1, a valve chamber 420 to which a valve hole 103d and a discharge hole 431a are open and that constitutes a part of the discharge passage 146, a partition member 430 partitioning into the back pressure chamber 410 and the valve chamber 420, and a spool 440 extending through a through hole 432a formed in the partition member 430. The spool 440 has a pressure receiving portion 441 disposed in the back pressure chamber 410, a valve portion 442 disposed in the valve chamber 420, and a shaft portion 443. The spool 440 is supported in a manner slidable in the opening and closing directions on the partition member 430 by arranging the spool valve 440a, constituted by the valve portion 442 and the shaft portion 443, to be in contact with the partition member 430.

A suction damping device for a variable displacement compressor includes a rotor rotatably received within a stator disposed in a suction port of the variable displacement compressor. The rotor includes an aperture and the stator includes a pair of opposing openings in selective fluid communication with the aperture of the rotor. An electromagnetic device controls a rotational position of the rotor relative to the stator based on a condition of an electrically controlled valve used to control an angle of inclination of a swashplate of the variable displacement compressor. A changing of the rotational position of the rotor relative to the stator causes a variable overlap to be formed between the aperture of the rotor and the openings of the stator to control a flow of a refrigerant through the suction damping device.

A suction damping device for a variable displacement compressor includes a rotor rotatably received within a stator disposed in a suction port of the variable displacement compressor. The rotor includes an aperture and the stator includes a pair of opposing openings in selective fluid communication with the aperture of the rotor. An electromagnetic device controls a rotational position of the rotor relative to the stator based on a condition of an electrically controlled valve used to control an angle of inclination of a swashplate of the variable displacement compressor. A changing of the rotational position of the rotor relative to the stator causes a variable overlap to be formed between the aperture of the rotor and the openings of the stator to control a flow of a refrigerant through the suction damping device.