Refrigeration – Processes – Compressing – condensing and evaporating
Reexamination Certificate
2007-10-31
2010-11-09
Ali, Mohammad M (Department: 3744)
Refrigeration
Processes
Compressing, condensing and evaporating
C062S324100, C062S498000
Reexamination Certificate
active
07827809
ABSTRACT:
A method includes operating a compressor with a vapor injection system and selectively supplying vapor to the compressor during compressor operation through actuation of a first control valve. The method further includes closing the first control valve to prevent vapor from entering the compressor for a first predetermined time period leading up to stopping operation of the compressor and stopping the compressor with the first control valve in the closed position. The compressor is started with the first control valve in the closed position and the first control valve is maintained in the closed position for a second predetermined time period following starting of the compressor. The first control valve is opened to supply vapor to the compressor after the second predetermined time period.
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Caillat Jean-Luc M.
Pham Hung M.
Van Hoose Ronald L.
Ali Mohammad M
Emerson Climate Technologies, Inc.
Harness & Dickey & Pierce P.L.C.
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