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1. 发明授权

US4235320A Retarder and friction brakes 失效
标题翻译：减速器和摩擦制动器
公开(公告)号：US4235320A
公开(公告)日：1980-11-25
申请号：US913969
申请日：1978-06-09
申请人： James C. Polak , Harry Fackenthal , Carl A. Lentz , Walter E. Palmer , Robert H. Schaefer
发明人： James C. Polak , Harry Fackenthal , Carl A. Lentz , Walter E. Palmer , Robert H. Schaefer
IPC分类号： B60T1/06 , B60T1/08 , B60T1/087 , B60T10/00 , B60T13/10 , B60T13/58 , F16D57/04 , F16D63/00 , F16D65/853 , B60K41/20
CPC分类号： F16D57/04 , B60T1/06 , B60T1/08 , B60T13/585 , F16D63/00 , F16D65/853
摘要： A retarder and friction brake system having vehicle service brakes and a shaft brake unit having a hydrodynamic retarder and friction brake. Manual brake controls provide for initial brake apply of the brake unit and then apply of the service brakes or independent apply of the service brakes. The brake unit has a dual chamber, hydrodynamic retarder with opposed bladed stators and a central rotor member having opposed bladed rotors mounted between the stator members for limited axial movement and rotation with a drum fixed to the shaft, and a friction brake having plates located concentrically within the retarder chambers on opposite sides of the rotor and splined to the drum and stators and a brake apply motor. In response to brake demand, the brake controls provide air pressure proportional to brake demand to the brake apply motor and fluid pressure proportional to brake demand and, in a low speed range limited to lower values with decreasing speed, to a brake chamber to provide a release pressure on the brake apply motor and flow through the constant restriction cooling passages in the brake plates to the retarder chambers for retarder braking and pumping through a cooler to provide with increasing speed in the low speed range, decreasing friction braking and increasing retarder braking having a total value proportional to brake demand, and in the higher speed range low friction braking and high retarder braking having a total value proportional to brake demand and increasing in a substantially straight line with increasing speed.
摘要翻译：具有车辆制动器的减速器和摩擦制动系统以及具有流体动力学延迟器和摩擦制动器的轴制动单元。手动制动控制提供制动单元的初始制动，然后应用行车制动器或独立应用行车制动器。制动单元具有双室，具有相对叶片定子的液力减速器和具有安装在定子构件之间的相对的叶片转子的中心转子构件，用于限制轴向运动和转动，其中固定在轴上的滚筒和摩擦制动器具有同心圆盘在转子的相对侧的减速器室内，并与滚筒和定子以及制动器电动机接合。响应于制动需求，制动控制提供与制动施加电动机的制动需求成比例的空气压力和与制动需求成比例的液压，并且在限制为以较低速度降低的值的低速范围内，提供制动室以提供制动器上的释放压力施加电动机并且通过制动板中的恒定的限制冷却通道流到减速器室，用于延迟器制动和泵送通过冷却器，以在低速范围内提供增加的速度，减少摩擦制动并增加减速器制动，与制动需求成比例的总值，以及在较高速度范围内具有与制动器需求成比例的总值的低摩擦制动和高阻尼器制动，并且随着速度的增加以基本上直线增加。

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