Controlled stroke electrodynamic linear compressor

Pumps – Motor driven – Electric or magnetic motor

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Details

310 27, 417418, F04B 3504

Patent

active

039376001

ABSTRACT:
A compressor of the resonant type driven by an electrodynamic linear motor incorporates means to control the stroke and to improve the power factor. The spring-mass system of the compressor which is forced into vibration by the motor is arranged to have a selectively variable resonant frequency generally centered on the power line frequency. Means responsive to any overstroking are operative to vary the natural frequency of the spring-mass system, for example by varying the stiffness of the spring means, so as to oppose further overstroking and maintain a high power factor.

REFERENCES:
patent: 2721453 (1955-10-01), Reutter
patent: 2988264 (1961-06-01), Reutter

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