Fluid-pressure and analogous brake systems – Pulsation neutralizers
Patent
1994-12-30
1996-10-22
Butler, Douglas C.
Fluid-pressure and analogous brake systems
Pulsation neutralizers
3031161, 303 601, 3031191, 3031154, B60T 832, B60T 836, B60T 848
Patent
active
055670229
ABSTRACT:
An anti-lock brake system for a wheeled vehicle having pressure-operated wheel brakes (26',28') with discrete anti-lock brake pump circuits including a solenoid-operated isolation valve (64',66') for each of the wheel brakes, a pressure hold-and-dump control solenoid valve (92',98') for each wheel brake, and a common attenuator (184) for the discrete anti-lock pump circuits, the attenuator providing sound energy absorption and pressure pulse energy dissipation and comprising an elastomeric element that attenuates pressure pulses in each of the discrete circuits, the attenuator action for one circuit complementing the attenuator action of the other circuit, thereby doubling the attenuator effectiveness and improving noise reduction potential.
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patent: 5209554 (1993-05-01), Beilfuss et al.
patent: 5363744 (1994-11-01), Pichler
patent: 5385395 (1995-01-01), Volz
Butler Douglas C.
Kelsey-Hayes Company
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