Fluid-pressure and analogous brake systems – Pulsation neutralizers
Patent
1973-11-28
1980-09-02
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Pulsation neutralizers
138 31, 138 46, B60T 1700
Patent
active
042203767
ABSTRACT:
A pressure stabilization and equalization device to prevent single wheel lock-up in hydraulic brake systems comprises a housing with openings adapted for connection to a hydraulic line between a power source and a pair of brake actuators. The openings communicate with a fluid receiving first chamber within the housing containing the exposed end face of a freely movable piston axially aligned with a shock absorbing, resiliently yieldable member that extends axially into but does not fill a second chamber formed by the housing. Hydraulic shock waves of increased pressure which occur within the first chamber because of an imbalance reaction from one of the brake actuators as the brakes are applied in a vehicle, are absorbed and damped out by movement of the piston against the resiliently, yieldable member which temporarily deforms within its chamber of the housing.
REFERENCES:
patent: 2236013 (1941-03-01), Smith
patent: 3106226 (1963-10-01), Machen
patent: 3430660 (1969-03-01), Mitton
patent: 3451431 (1969-06-01), Roger
patent: 3757825 (1973-09-01), Givens et al.
Butler Douglas C.
Keller Robert W.
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