Brake fluid pressure control device with sealed fluid storage ch

Details Brake fluid pressure control device with sealed fluid storage ch Brake fluid pressure control device with sealed fluid storage ch

1995-12-14

1998-01-13

Graham, Matthew C.

Fluid-pressure and analogous brake systems

Speed-controlled

Having a valve system responsive to a wheel lock signal

3031132, B60T 848

Patent

active

057071160

ABSTRACT:
This invention has its purpose in providing a brake fluid pressure control device which is simply structured but still satisfies a driver's braking feeling and which controls wheel cylinder pressure without using master cylinder pressure. The brake fluid pressure control device of this invention is comprised of a master cylinder, a pump, a pipe which connects the suction side of the pump to the pipe of the master cylinder, a closed storage chamber with a fixed capacity which is provided in the pipe and filled with brake fluid, a check valve which is installed closer to the master cylinder than the storage chamber and which allows bidirectional flow of brake fluid from the master cylinder to the suction side of the pump, a control valve used to open and close the passage between the storage chamber and the suction side of the pump, a prohibition means which prohibits flow of brake fluid between the master cylinder and wheel cylinder when brake fluid is drawn from the storage chamber and discharged, a pressure rise/drop control means which controls rise and drop of brake pressure exerted on the wheel cylinder, and a reservoir.

REFERENCES:
patent: 4878715 (1989-11-01), Toda
patent: 5169216 (1992-12-01), Schmidt et al.
patent: 5271667 (1993-12-01), Takata et al.
patent: 5368374 (1994-11-01), Fujimoto
patent: 5374112 (1994-12-01), Takata et al.
patent: 5405191 (1995-04-01), Nishiyama et al.

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