Valved discharge mechanism of a refrigerant compressor

Details Valved discharge mechanism of a refrigerant compressor Valved discharge mechanism of a refrigerant compressor

1995-08-14

1997-05-27

Freay, Charles G.

Pumps

Expansible chamber type

Having pumping chamber pressure responsive distributor

137856, F04B 5310

Patent

active

056326092

ABSTRACT:
A refrigerant compressor comprises a compressor housing divided at least partially by a valve plate into a first chamber and a second chamber, the second chamber comprises a discharge chamber. An elastic valve member is capable of bending to open and close an end opening of the conduit. The valve member has a predetermined elastic modulus and is arranged such that the end opening of the conduit remains blocked until a pressure in the first chamber reaches a predetermined value. The valve plate includes a valve seat surrounding the end opening of the conduit and a recessed portion offset from the end surface of the valve plate. The recessed portion includes an inclined surface portion and a wall portion extending therefrom so that the elastic valve member closes the end opening of the conduit without striking the end surface of the valve plate due to an elastic restoring force of the elastic valve member. Noise and vibration caused by the striking of discharge reed valve against the valve plate are thus decreased. As a result, noise and vibration propogated to the passenger compartment of a vehicle are decreased.

REFERENCES:
patent: 3949716 (1976-04-01), Liu
patent: 4076047 (1978-02-01), Akahori
patent: 4730550 (1988-03-01), Bramstedt et al.

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