公开(公告)号：US4520625A

公开(公告)日：1985-06-04

申请号：US471341

申请日：1983-03-02

申请人： Hideyori Sato ,  Nobuaki Inaba ,  Mitsuru Arai ,  Michio Onzou

发明人： Hideyori Sato ,  Nobuaki Inaba ,  Mitsuru Arai ,  Michio Onzou

IPC分类号： F15B13/02 ,  F16H61/40 ,  F16H61/4148 ,  F16H61/4157 ,  F16D31/02

CPC分类号： F16H61/4157 ,  F15B13/02 ,  F16H61/40 ,  F16H61/4148

摘要： A hydraulic brake valve system for use in a hydraulic circuit consisting of driving and braking fluid lines and including therein at least a hydraulic motor for the actuation of an inertia body such as, for example, a construction vehicle or work implements thereof has a counterbalance valve, a cross-over safety valve, a drain change-over valve and a timer valve. The cross-over safety valve consists of two common relief valves, each having two pressure receiving surfaces and adapted to relieve pressurized fluid acted on one of the pressure receiving surfaces at a low pressure and relieve pressurized fluid acted on the other pressure receiving surface at a high pressure, wherein the first port of one of said relief valves is connected with said driving fluid line and the second port thereof is connected with said braking fluid line, whilst the first port of the other relief valve is connected with said braking fluid line and the second port thereof is connected with said driving fluid line.

摘要翻译： 一种用于由驱动和制动流体管线组成的液压回路的液压制动阀系统，其中至少包括用于致动诸如施工车辆或其工具的惯性体的液压马达具有平衡阀 ，交叉安全阀，排水转换阀和定时阀。 交叉安全阀由两个共同的安全阀组成，每个安全阀具有两个压力接收表面，并且适于在低压下减轻作用在压力接收表面之一上的加压流体，并且在一个压力接收表面上减轻作用在另一压力接收表面上的加压流体 其中一个所述安全阀的第一端口与所述驱动流体管线连接，并且其第二端口与所述制动流体管线连接，而另一泄压阀的第一端口与所述制动流体管线相连接， 其第二端口与所述驱动流体管线连接。