Oil injection control in a compressor with variable-speed coils

Details Oil injection control in a compressor with variable-speed coils Oil injection control in a compressor with variable-speed coils

2008-07-23

2011-12-06

Davis, Mary A (Department: 3748)

Rotary expansible chamber devices

Heat exchange or non-working fluid lubricating or sealing

Non-working fluid passage in inner working or reacting member

C418S098000, C184S006180

Reexamination Certificate

active

08070465

ABSTRACT:
This refrigerating compressor comprises a sealed chamber delimiting a suction volume and a compression volume arranged respectively either side of a body contained in the chamber, and an oil injection circuit arranged to inject oil into the compression volume. The oil injection circuit comprises a moving blocking piece, operated by a centrifugal force, between a first position enabling oil injection into the compression volume and a second position preventing or limiting oil injection into the compression volume, the blocking piece being arranged to be displaced into its second position when the speed of the compressor exceeds a predetermined value.

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Mar. 18, 2009 International Search Report issued in PCT/FR2008/051391 (with English Translation).

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