| 摘要 |
A proportioning valve assembly (10) in a housing (12) is pressure responsive to control the flow of fluid to a wheel brake. A proportioning valve (20) is disposed within a chamber (26) having an inlet (33) and outlet (114), the inlet (33) receiving pressure from a pressure generator such as a master cylinder. A poppet (80) of the proportioning valve (20) is connected by a shaft (90) with a plunger (100) disposed within another chamber (30), the other chamber (30) being isolated from fluid pressure in the chamber (26) housing the proportioning valve. A fluid-containing chamber (13) contains an inertia sensing mass (40) which engages a valve mechanism (34) that controls fluid communication between the fluid-containing chamber (13) and other chamber (30). A friction element (120) of the wheel brake engages a braking torque responsive valve (140) which communicates fluid pressure to a chamber (30a). The position of the poppet (80) is adjusted by the braking torque responsive valve (140) in order to eliminate the variable effects of friction elements having a variation in lining thickness and coefficient of friction. |
