Anti-lock braking system low pressure accumulator for...

Details Anti-lock braking system low pressure accumulator for... Anti-lock braking system low pressure accumulator for...

2005-06-14

2005-06-14

Schwartz, Christopher P. (Department: 3683)

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

C303S113200

Reexamination Certificate

active

06905179

ABSTRACT:
A braking system includes an accumulator positioned along the brake line between the wheel brake and a pump. The accumulator includes a cylinder defining a bore and a piston fitted within the bore. The cylinder defines an inlet and an outlet fluidically connecting the bore to the brake line. The outlet is axially spaced from the inlet and is positioned to be sealed closed by the piston when it is proximate to inlet. The accumulator stores a reserved volume of fluid that is not delivered to the pump via the outlet to thereby reduce the volume of fluid delivered to the master cylinder by the pump and prevent damage to the lip seals during ABS control.

REFERENCES:
patent: 5290098 (1994-03-01), Burgdorf et al.
patent: 5411326 (1995-05-01), Linhoff
patent: 5567128 (1996-10-01), Volz et al.
patent: 5577384 (1996-11-01), Watanabe et al.
patent: 5927828 (1999-07-01), Beck
patent: 6195995 (2001-03-01), Bartsch
patent: 6290310 (2001-09-01), Kusano

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