发明名称 Load pressure feedback system having at least one control valve for controlling an apparatus
摘要 PCT No. PCT/DE81/00099 Sec. 371 Date Feb. 22, 1982 Sec. 102(e) Date Feb. 22, 1982 PCT Filed Jun. 27, 1981 PCT Pub. No. WO82/00112 PCT Pub. Date Jan. 21, 1982.A load pressure feedback system having at least one control valve for controlling a manipulator comprising a load arm which is pivotally connected to a base member, and a control member having a manually movable control arm which is of the same configuration as but on a smaller scale than the load arm. The pivots or rotary mountings of the load arm and control arm are connected together and controlled by a load pressure feedback system comprising a valve having a hydraulic pilot control member. The load pressures at measuring locations of the apparatus are applied to the inlet of at least one throttle aperture and the level of the control pressures is determined by the cross-sectional areas of the throttle aperture and a screw-in control aperture in the valve. At least one control piston is subjected, on the one hand, to the load pressures and on the other hand to the control pressures. The hydraulic load pressure control valve has control edges and apertures and the ratio of the aperture cross-sectional areas determines the control pressures.
申请公布号 US4516894(A) 申请公布日期 1985.05.14
申请号 US19820355585 申请日期 1982.02.22
申请人 ALB KLEIN GMBH & CO. KG 发明人 STOLPP, SIEGFRIED
分类号 B25J3/04;(IPC1-7):B25J3/04;F15B13/14 主分类号 B25J3/04
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