A piston check valve system includes a body including an upstream end and a downstream end, a bonnet secured to a proximal opening of the body, and a piston secured within the body, the piston being moveable between a closed position in which the piston rests upon a valve seat and an open position in which the piston is spaced away from the valve seat. The piston check valve system also includes a retainer configured to guide and retain the piston and to secure the valve seat within the body.

A piston check valve system includes a body including an upstream end and a downstream end, a bonnet secured to a proximal opening of the body, and a piston secured within the body, the piston being moveable between a closed position in which the piston rests upon a valve seat and an open position in which the piston is spaced away from the valve seat. The piston check valve system also includes a retainer configured to guide and retain the piston and to secure the valve seat within the body.

A piston check valve system includes a body including an upstream end and a downstream end, a bonnet secured to a proximal opening of the body, and a piston secured within the body, the piston being moveable between a closed position in which the piston rests upon a valve seat and an open position in which the piston is spaced away from the valve seat. The piston check valve system also includes a retainer configured to guide and retain the piston and to secure the valve seat within the body.

A piston check valve system includes a body including an upstream end and a downstream end, a bonnet secured to a proximal opening of the body, and a piston secured within the body, the piston being moveable between a closed position in which the piston rests upon a valve seat and an open position in which the piston is spaced away from the valve seat. The piston check valve system also includes a retainer configured to guide and retain the piston and to secure the valve seat within the body.

The present invention relates to a suction pulsation reducing device of a swash plate type compressor, and more particularly, to a suction pulsation reduction apparatus provided on a suction channel formed in a rear head of a swash plate type compressor, in which a moving range of a core portion is limited and all parts to be mounted on a suction channel are integrally formed in a case.

Provided is a check valve installed in a bore of a modulator block having an inlet path and an outlet path to control a flow of oil in one direction, the check valve including: a valve housing provided with a path hole passing through at a central portion thereof to have an upper end and a lower end thereof open to communicate with the inlet path and the outlet path, and a flange portion protruding from a circumference of an outer surface of the valve housing such that the valve housing is fixed to the bore; a spring retainer coupled to one of the open upper and lower ends of the valve housing which is adjacent to the outlet path, and having an outlet port communicating with the outlet path; a plunger movably installed in the path hole while being elastically supported by a spring supported on the spring retainer, and configured to open or close the path hole according to an up and down movement of the plunger; and a lip seal having a lip portion interposed between the plunger and the valve housing to prevent oil from flowing backward toward the inlet path from the outlet path.

A piston check valve system includes a body including an upstream end and a downstream end, a bonnet secured to a proximal opening of the body, and a piston secured within the body, the piston being moveable between a closed position in which the piston rests upon a valve seat and an open position in which the piston is spaced away from the valve seat. The piston check valve system also includes a retainer configured to guide and retain the piston and to secure the valve seat within the body.

A pressure regulator includes a pronged piston positioned inside an internal chamber, such that the pronged piston moves longitudinally along the axis of the internal chamber in response to the pressures exerted on the piston by a liquid flowing through the regulator. The piston has a first disk and a second disk connected by a number of prongs. The second disk is configured to seal the inlet port of the pressure regulator when the piston is in a closed position and the number or prongs act as guides for the piston as it slides within the internal chamber.

The present invention relates to a suction pulsation reducing device of a swash plate type compressor, and more particularly, to a suction pulsation reduction apparatus provided on a suction channel formed in a rear head of a swash plate type compressor, in which a moving range of a core portion is limited and all parts to be mounted on a suction channel are integrally formed in a case.

The discharge valve arrangement (17) includes a valve plate (18) including a discharge passage (22) and a valve seat (23) surrounding the discharge passage (22); a valve housing (24) being secured to the valve plate (18) and including a bottom portion (25) facing away from the valve plate (18), a sidewall (26) extending from the bottom portion (25) and towards the valve plate (18), and a discharge opening (28) formed in the sidewall (26); a valve member (31) displaceable between a closed position in which the valve member (31) closes the discharge passage (22) and an open position in which the valve member (31) opens the discharge passage (22). The valve housing (24) includes a gas damping chamber defined by the bottom portion (25) and the sidewall (26) and being configured to accommodate the valve member (31) in the open position; and an exhaust opening (37) formed in the bottom portion (25) and emerging in the gas damping chamber.