Pumps – Expansible chamber type – Having pumping chamber pressure responsive distributor
Reexamination Certificate
2005-01-04
2005-01-04
Yu, Justine R. (Department: 3746)
Pumps
Expansible chamber type
Having pumping chamber pressure responsive distributor
C417S269000, C417S569000, C137S855000
Reexamination Certificate
active
06837695
ABSTRACT:
A reciprocating refrigerant compressor includes a cylinder block having a cylinder bore, and a compression chamber defined within the cylinder bore. A cylinder head has a low-pressure chamber for receiving refrigerant gas to be drawn into the compression chamber, and is coupled to one end face of the cylinder block. A valve plate is arranged between the compression chamber and the low-pressure chamber, and includes an inlet port for guiding the refrigerant from the low-pressure chamber into the compression chamber. An inlet valve opens and closes the inlet port and has an end whose shape is adapted to a shape of the inlet port. The shape of the inlet port is non-circular, and a portion of an opening edge of the inlet port protrudes into the inlet port. Tangential lines drawn from the protruding portions intersect the opening edge of the inlet port at at least two points.
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Kurosawa Juetsu
Une Katsutaka
Frishauf Holtz Goodman & Chick P.C.
Solak Timothy P.
Yu Justine R.
Zexel Valeo Climate Control Corporation
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