Patent ID: 6296324
Filing Date: 2001-10-02
Classification: B60T

Abstract:
A brake fluid pressure generating device for a vehicle provided with a brake operation member, comprising:a cylinder body provided with a bore;a master cylinder including a master cylinder piston slidably disposed in the bore;a reservoir;a supplemental fluid generator for generating a power fluid pressure;a fluid regulator for regulating said power fluid pressure to a regulated fluid pressure in response to operation of the brake operation member, said fluid regulator including a first regulator chamber and a second regulator chamber that are separated in a fluid tight manner from one another, said fluid regulator including a valve positionable in a first position in which the first regulator chamber communicates with the reservoir and a second position in which the first regulator chamber communicates with the supplemental fluid generator;a pressure chamber in the bore between the master cylinder piston and the fluid regulator;said pressure chamber being fluidly communicated with the second regulator chamber to control movement of said valve from said second position to said first position upon application of a predetermined force to the brake operation member.