Controlled stroke electrodynamic oscillating motor compressor

Details Controlled stroke electrodynamic oscillating motor compressor Controlled stroke electrodynamic oscillating motor compressor

1976-02-09

1978-01-10

Croyle, Carlton R.

Pumps

Motor driven

Electric or magnetic motor

417416, 92 85B, 92143, F04B 3504, F01B 1102

Patent

active

040676676

ABSTRACT:
A compressor of the free-piston resonant type driven by an electrodynamic oscillating motor incorporates means to control the stroke to allow for stable operation over a wide range of operating conditions. The spring-mass system of the compressor which is forced into vibration by the electrodynamic oscillating motor is arranged to have a selectively variable natural resonant frequency generally centered on the power line frequency. Variable area port means responsive to any overstroking are operative to vary the natural frequency of the spring-mass system by varying the stiffness of a gas spring means thereof so as to oppose overstroking and also provide for a maximum stroke limit.

REFERENCES:
patent: 1129964 (1965-03-01), Ebeung
patent: 2721453 (1955-10-01), Reutter
patent: 3543061 (1970-11-01), Wallace

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