Dual-circuit pressure control valves for brake systems

Details Dual-circuit pressure control valves for brake systems Dual-circuit pressure control valves for brake systems

1980-08-01

1982-09-28

Reger, Duane A.

Fluid-pressure and analogous brake systems

Automatic

Application valve

303 52, 303 84R, B60T 1718, B60T 1108

Patent

active

043515711

ABSTRACT:
With a known brake pressure control valve for a dual-circuit brake system, a tilting lever device is provided for the distribution of the preloading force on the control pistons, which increases the change-over point of the brake circuit in operation when the other brake circuit fails. This tilting lever device is complicated in construction and assembly and is not safe in its operation. Therefore, in accordance with the present invention the device for distributing the preloading force comprises two tops each of which is fixed to a different one of the two control pistons. The tops have supporting surfaces on which the preloading device abuts. The adjacent areas of the tops are meshed in such a way that the supporting surfaces of each top extend beyond the median plane located between the control pistons.

REFERENCES:
patent: 3227494 (1966-01-01), Alfieri
patent: 3758168 (1973-09-01), Parsons
patent: 4184717 (1980-01-01), Margetts

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