SERVO BOOSTER FOR VEHICLE BRAKE SYSTEM

摘要

The valve assembly for the booster has a poppet valve member(29) secured to a sleeve(34) which is slidable in the valve body(3). It is connected by a part-pherical thrust coupling(41) centered at the ball(13) with the input rod(12). The sleeve and input rod are biassed rearwardly by a single spring(46). The resilient valve member is provided with a sealing lip(39) to effect a sliding seal between the sleeve & the valve body. The valve body has a stepped bore with a reduced dia. intermediate position(10) in which is located a valve control member(11).