Fluidic governor system

Details Fluidic governor system Fluidic governor system

1973-12-26

1976-01-06

Freeh, William L.

Rotary kinetic fluid motors or pumps

With control means responsive to non-cyclic condition...

By shaft speed or torque responsive means

417 24, 417 47, F04B 4900, F01D 1706, F01B 2506

Patent

active

039307433

ABSTRACT:
A fluidic governor system for controlling the speed of a drive shaft output of a prime mover, comprising a fluidic governor, a reciprocating or vane compressor, a fluidic RC filter, and a valve. The compressor is mechanically coupled to and driven by the drive shaft output of the prime mover, and generates both pneumatic power and a pulsating fluidic signal which has a frequency proportional to the rotation of the drive shaft output of the prime mover. The fluidic RC filter blocks the passage of the pulsating fluidic signal and converts the power output to a steady pneumatic power supply which powers the fluidic governor, while the pulsating fluidic signal is acoustically sensed by the governor. A speed error signal whose magnitude is proportional to the error in the frequency of the pulsating fluidic signal, is generated from a control output port of the fluidic governor for regulating the energy supply to the prime mover by means of the valve to correct the speed of the drive shaft output of the prime mover.

REFERENCES:
patent: 1566995 (1925-12-01), Standerwick
patent: 2941120 (1960-06-01), Harmon et al.
patent: 3424370 (1969-01-01), Law
patent: 3499599 (1970-03-01), Meininger et al.
patent: 3538931 (1970-10-01), Blosser, Jr.
patent: 3580086 (1971-05-01), Doherty
patent: 3743434 (1973-07-01), Geary

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