Compressor including tapered discharged valve and valve seat

Details Compressor including tapered discharged valve and valve seat Compressor including tapered discharged valve and valve seat

2005-06-14

2005-06-14

Freay, Charles G (Department: 3746)

Pumps

Expansible chamber type

Having pumping chamber pressure responsive distributor

C137S540000

Reexamination Certificate

active

06905318

ABSTRACT:
A compressor includes a compression chamber for compressing working fluid within an inside thereof, a discharge port, through which the working fluid flows out from the compression chamber, and a discharge valve for opening or closing the discharge port. The discharge valve includes a valve seat portion provided in the discharge port and having a tapered surface, so that a cross-section area of the discharge port comes to be large from a side of the compression chamber. The valve has a projection portion having a tapered surface in contact with the tapered surface of the valve seat portion. A spring is provided on a member formed in one body with the valve seat portion, for positioning the valve to the valve seat portion, wherein clearance volume of the discharge port is reduced, so as to improve the performances thereof.

REFERENCES:
patent: 4329125 (1982-05-01), Chambers
patent: 4368755 (1983-01-01), King
patent: 4445534 (1984-05-01), King
patent: 4543989 (1985-10-01), Lorson
patent: 5080130 (1992-01-01), Terwilliger et al.
patent: 5346373 (1994-09-01), Riffe
patent: 5897305 (1999-04-01), Roddis
patent: 6132191 (2000-10-01), Hugenroth et al.
patent: 8319973 (1996-12-01), None
patent: 8-319973 (1996-12-01), None

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