Hydraulic power controlled through multiple feedback loops. In hydraulic drive unit, power closely matched to demand, thereby saving energy. Hydraulic flow to and from motor adjusted by motor-control valve connected to wobbler. Wobbler angle determines motor-control-valve position, which in turn determines motor displacement. Concept applicable to machine tools, aircraft controls, and marine controls.
Variable-Displacement Hydraulic Drive Unit
NASA Tech Briefs ; 10 , 1
1986-06-01
Miscellaneous
No indication
English