AIRCRAFT FRONT SUPPORT TURN CONTROL SYSTEM Russian patent published in 1997 - IPC

FIELD: aeronautical engineering; hydraulic control systems of aircraft front support wheel turn. SUBSTANCE: system comprises kinematic control linkage and electrohydraulic control circuit. Kinematic control linkage is provided with three-hinge lever and additional rod. One end of hinge of three-hinge lever is fitted on bearing bracket used for securing the control signal setter and second end hinge is engageable with cam secured on the same bracket. Rod of mechanical linkage is connected with intermediate hinge of three-hinge lever and additional rod is used to connect second end hinge with guide of setter. Spring-loaded straightener of lever is mounted between rods passed through axles of end hinges. When pedals are shifted , guide performs motion according to profile of cam which is selected through calculations or graphically depending on required characteristic of control system. EFFECT: enhanced reliability. 2 cl, 1 dwg