VALVE-AND-PISTON UNIT OF SEALED REFRIGERANT COMPRESSOR Russian patent published in 2015 - IPC F04B39/00 

FIELD: machine building.

SUBSTANCE: invention relates to compressor industry, namely, to refrigerating units and can be used in valve-and-piston units of sealed refrigerant compressors. A valve-and-piston unit comprises suction and delivery silencers fixed on the cylinder casing by a fastening bracket with L-shaped grips and connected via a gasket to the valve plate installed in the end face surface of the cylinder casing. The said plate is fixed by a cylindrical cover and closes the working cavity of the cylinder with the piston set in it. The cylindrical cover is connected to the cylinder casing by a dead threaded connection, and the fastening bracket with L-shaped grips is fitted by a spring lug fixing the suction silencer. The mounting faces of the suction and delivery silencers are provided with protrusions along the perimeter of their inlet holes, and the protrusion height does not exceed the gasket thickness.

EFFECT: simplified design, improved repairability and higher reliability of a seal at the connection to the delivery silencer.

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