Deceleration sensing valve assembly for vehicle brake

Details Deceleration sensing valve assembly for vehicle brake Deceleration sensing valve assembly for vehicle brake

1981-02-13

1983-08-09

Butler, Douglas C.

Fluid-pressure and analogous brake systems

Inertia control

188349, 303 6C, 303 24F, B60T 814

Patent

active

043975062

ABSTRACT:
A deceleration sensing valve is provided which includes a valve body adapted to move under its own inertia as the deceleration of a road vehicle exceeds a given value, and a valve seat on which the valve body seats. The valve seat is located rearwardly of the valve body as viewed in the direction of movement thereof under its inertia, whereby there can occur no change in a control pressure derived by the deceleration sensing valve, in particular when the vehicle is empty, as it does occur in the prior art in response to any slight shift in the timing when the valve body becomes seated. Consequently, when used in combination with a proportion valve, the deceleration sensing valve of the invention assures a stable braking characteristic when the vehicle is empty as well as when the vehicle is occupied.

REFERENCES:
patent: 2030288 (1936-02-01), Freeman
patent: 3944293 (1976-03-01), Ishigami et al.
patent: 4131326 (1978-12-01), Takayama et al.
patent: 4141596 (1979-02-01), Takeshita et al.

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