Automatic volume control system

Details Automatic volume control system Automatic volume control system

1979-04-20

1981-01-27

Schacher, Richard A.

Fluid sprinkling, spraying, and diffusing

With mobile tank-type supply means

Operational means interconnected with ground traverse

B05B 906

Patent

active

042470455

ABSTRACT:
An automatic volume control system for controlling the rate at which fluid, such as paint, is sprayed from spray guns on a mobile vehicle as a function of vehicle speed. The device permits paint lines to be maintained at a uniform thickness independently of the vehicle speed. A tachometer generator generates a voltage proportional to the vehicle road speed which voltage controls the opening of an adjustable hydraulic valve. Hydraulic fluid passing through the hydraulic valve drives a hydraulic generator which in turn drives a spray gun system. The voltage from the tachometer generator thereby causes the hydraulic fluid to drive the hydraulic motor and paint pump at a rate which is proportional to the vehicle road speed. The hydraulic fluid is suitably pumped through the hydraulic valve to the hydraulic motor by a hydraulic pump driven by the power take-off of the vehicle. By using a flow divider valve connected between the hydraulic pump and the hydraulic motor, two separate and parallel independently controllable painting systems may be provided. An intermittent line mechanism powered by the vehicle road wheels, is connected to the spray guns and to hydraulic motor bypass valves in order to provide line patterns which are independent of vehicle road speed.

REFERENCES:
patent: 3344993 (1967-10-01), Wilder
patent: 4019685 (1977-04-01), Tangeman
patent: 4093107 (1978-06-01), Allman

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