Double-headed piston type compressor

Details Double-headed piston type compressor Double-headed piston type compressor

2006-10-17

2010-11-30

Kramer, Devon C (Department: 3746)

Pumps

Three or more cylinders arranged in parallel, radial, or...

C092S012200

Reexamination Certificate

active

07841840

ABSTRACT:
A mechanism for drawing in refrigerant to front compression chambers (28a) of a double-headed piston type compressor differs from a mechanism for drawing in refrigerant to rear compression chambers (29a). More specifically, the mechanism for drawing in refrigerant to the front compression chambers (28a) include suction valves (18a) configured by flap valves. The mechanism for drawing in refrigerant to the rear compression chambers (29a) is configured by a rotary valve (35). Thus, pulsation of the compressor is reduced, so that the generation of noise is suppressed. As a result, a quiet compressor is achieved.

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English translation of the International Preliminary Report on Patentability dated May 2, 2008, Application No. PCT/JP2006/320612.
PCT International Search Report (PCT/2006/320612) mailed Jan. 9, 2007.

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