Load dependent control arrangements

Details Load dependent control arrangements Load dependent control arrangements

1976-05-24

1977-09-27

Blix, Trygve M.

Fluid-pressure and analogous brake systems

Load control

Responsive to fluid pressure spring

303 40, 303118, B60T 818

Patent

active

040507432

ABSTRACT:
A load dependent control arrangement wherein an electrical load sensor such as a strain gauge controls the mark-to-space ratio of a pulse train output from a pulse generator. The pulse train operates a solenoid valve to control a pneumatic output pressure in proportion to the ratio of marks to spaces. The output pressure may be amplified in a self-lapping pneumatic relay valve. The final output pressure may be utilized in any suitable manner, for example, in operating the pneumatic brakes of a vehicle whose load is being measured by the sensor.

REFERENCES:
patent: 3503656 (1970-03-01), Shattock et al.
patent: 3685868 (1972-08-01), Nagase et al.
patent: 3920285 (1975-11-01), Maskery
patent: 3944287 (1976-03-01), Nagase
patent: 3970348 (1976-07-01), Maskery

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