Pumps – Condition responsive variable volumetric capacity expansible... – Valved clearance chamber
Patent
1975-05-14
1976-08-03
Freeh, William L.
Pumps
Condition responsive variable volumetric capacity expansible...
Valved clearance chamber
92 605, F04B 4900
Patent
active
039726525
ABSTRACT:
The improved clearance pocket or chamber for compressors described in this specification includes a hollow housing attached to the cylinder of the compressor. The housing is divided into two clearance chambers and into three power chambers. A valve member located in the housing is movable to provide communication between the compressor cylinder and one or both of the clearance chambers. Movable pistons operably arranged with respect to the valve member are located in the power chambers to position the valve member in the desired position. Suitable fluid power means is connected with the power chambers to cause the desired movement of the pistons.
REFERENCES:
patent: 1588256 (1926-06-01), Metzgar
patent: 1867681 (1932-07-01), Simson
patent: 2004474 (1935-06-01), Schaer
patent: 2197158 (1940-04-01), Saharoff
Dresser Industries Inc.
Freeh William L.
Hazelwood J. N.
LaPointe G. P.
Van Winkle R. L.
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