SELBSTTAETIGE SCHALTVORRICHTUNG EINES MEHRGAENGIGEN ZAHNRAEDERWECHSELGETRIEBES

摘要

An automatic selector device for multi-gear change-speed gearbox includes a multi-way valve which can be driven into several valve positions each associated with one gear by a stepper motor whose operation depends on an electronic control unit. Each of the valve positions causes the appropriate gear to be selected. The multi-way valve is connected kinematically to a selector unit which can be actuated manually in order to block gears through the intermediary of a stop and an opposing stop.