作者: Blumenstein Fritz , Pruess Ludwig Dipl Ing , Uhlig Guenter Dipl Ing
DOI:
关键词: Cylinder (engine) 、 Mechanical engineering 、 Transmission (telecommunications) 、 Completion (oil and gas wells) 、 Electric control 、 Drivetrain 、 Piston 、 Control theory 、 Non-circular gear 、 Hydraulic cylinder 、 Engineering
摘要: A hydraulically actuated sliding piston (36) enables a gear-shifting sleeve (9) to be positioned in two directions before reverse gear engagement wheel (10) is moved by mechanical positioner (43) coupled the selector (44). The selection sensed an electric control unit (48) which operates slide valve (27) hydraulic lines (37,38) both ends (S1,S2) of double-acting cylinder. When selected system passes through neutral with actuator inhibited. ADVANTAGE - Erroneous ratio changes, forward movements and stresses on drive train are excluded.