F - Mech Eng,Light,Heat,Weapons – 15 – B
Patent
F - Mech Eng,Light,Heat,Weapons
15
B
121/78
F15B 15/14 (2006.01) F01B 11/02 (2006.01) F01L 21/04 (2006.01) F04B 1/00 (2006.01) F04B 7/04 (2006.01) F04B 9/127 (2006.01) F16N 7/38 (2006.01) F16N 27/00 (2006.01)
Patent
CA 1064339
T I T L E PNEUMATICALLY OPERATED OSCILLATOR ABSTRACT OF THE DISCLOSURE A pneumatically operated oscillator is used as a linear motor to operate a single or a plurality of linear positive displacement pumps having plunges. The oscillator has a single acting pneumatic piston that works against a spring to force the plunges in their pressure strokes. The spring effects the return stroke which is damped by a hydraulic circuit that has an adjustable restriction. The work stroke is undamped and fast compared with the spring actuated return stroke. Variations in the pressure of the operating air affects the work strokes, but since the work strokes are many times faster than the return strokes, variations in the air pressure have little effect on the frequency .
250884
Aagren Nils A.
Lewkowicz Josef
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