Pumps – Motor driven – Electric or magnetic motor
Patent
1997-10-21
1999-11-23
Freay, Charles G.
Pumps
Motor driven
Electric or magnetic motor
417319, F04B 3504
Patent
active
059889942
ABSTRACT:
A pump or compressor wherein the volumetric displacement of a piston cylinder assembly is variable. The piston is connected to a crank slider or eccentric mechanical drive, the crankshaft of which oscillates alternately clockwise through a controllably variable angle .theta. and counterclockwise through substantially the same angle .theta., the angle .theta. being measured from the angular position of the crankshaft or eccentric at which separation between piston and the closed end of the bore is a minimum (Top Dead Center). The angle of crank oscillation controls the degree of volumetric displacement of the piston. The crank shaft is connected to a torsional spring so as to substantially resonate the rotational inertia of the moving parts. An oscillating electric motor supplies the oscillating torque to drive the mechanism at constant frequency but controllably variable angular amplitude.
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Evora Robert Z.
Foster Frank H.
Freay Charles G.
Global Cooling Manufacturing Company
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