Compressor check valve

Details Compressor check valve Compressor check valve

2005-02-01

2005-02-01

Freay, Charles G. (Department: 3746)

Pumps

Expansible chamber type

Distributor moved by separate fluid responsive surface

C417S559000, C418S055100, C137S514000, C137S514300

Reexamination Certificate

active

06848893

ABSTRACT:
A compressor check valve having a valve bolt and a valve bolt cover for noise reduction and mitigation of impact from a valve bolt on the valve bolt cover. A bolt insertion hole is provided in the cover to receive the valve bolt. A pressure conduction hole penetrating from the side of the valve bolt insertion hole of the cover through the exterior of the cover is provided on the cover to connect the high pressure chamber through the valve bolt insertion hole. A buffer section is formed on a top of the valve bolt insertion hole so that the valve bolt is forced by a high pressure coolant to move above and block the pressure conduction hole, the buffer section contains high pressure coolant prevented from being discharged through the pressure conduction hole to create a buffer action when the valve bolt moves upward so as to avoid direct impact against the valve bolt cover.

REFERENCES:
patent: 5494422 (1996-02-01), Ukai et al.
patent: 6132191 (2000-10-01), Hugenroth et al.
patent: 6390792 (2002-05-01), Tarng et al.
patent: 6457952 (2002-10-01), Haller et al.
patent: 6659735 (2003-12-01), Kim
patent: 6672845 (2004-01-01), Kim et al.
patent: 6685441 (2004-02-01), Nam
patent: 332776 (2002-04-01), None

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