Pumps – Reverse flow with unidirectional drive or unidirectional...
Patent
1998-06-17
1999-09-14
Ryznic, John E.
Pumps
Reverse flow with unidirectional drive or unidirectional...
417221, 92 13, F04B 1900, F04B 3700, F01B 902
Patent
active
059512610
ABSTRACT:
A reciprocating piston compressor including at least one cylinder, a reciprocable piston disposed therein, a crankshaft rotatable in forward and reverse directions and having an eccentric crankpin, and a cam disposed about the crankpin, the piston operatively connected to the cam. The cam is rotatable about the crankpin between a first angular position corresponding to a first piston stroke length during forward crankshaft rotation and a second angular position corresponding to a second piston stroke length during reverse crankshaft rotation. In one of its first and second angular positions, the cam is rotatably locked to the crankpin.
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Ryznic John E.
Tecumseh Products Company
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