Fluid flow controller

Details Fluid flow controller Fluid flow controller

1978-02-22

1979-04-03

O'Dea, William F.

Automatic temperature and humidity regulation

Ventilator type

73228, 137499, F24F 706

Patent

active

041472985

ABSTRACT:
A fluid flow controller is disclosed particularly adapted for maintaining a variable value constant volume fluid flow through a conduit supplying fluid to a zone. A spring biased vane is disposed across the diameter of the conduit to provide a motion signal proportional to the average volume flow pressure across the diameter of the conduit. The motion signal from the vane and a transducer within a zone to which the fluid is being conducted responsive to an environmental parameter in the zone are connected to a controller assembly connected to control an actuator moving a damper within the conduit. The controller is adapted to position the damper to maintain the motion signal from the vane and the signal from the transducer within the controlled zone in balance.

REFERENCES:
patent: 2803261 (1957-08-01), Carlson
patent: 2857762 (1958-10-01), Parshall et al.
patent: 3809314 (1974-05-01), Engelke et al.
patent: 3976244 (1976-08-01), Logsdon
patent: 3994434 (1976-11-01), Boyer et al.
patent: 4077567 (1978-03-01), Ginn et al.

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