Fan motor setting device for automobile heating or cooling fan has mechanical gearing between setting regulator and setting shaft for electrical potentiometer inserted in fan motor circuit

摘要

The setting device has a setting regulator (22) coupled via a mechanical gearing (20) with the setting shaft of a potentiometer (18). The section of the setting shaft cooperating with the potentiometer has a non-circular cross-section, with a cylindrical section projecting from the potentiometer provided with a cogwheel (94), cooperating with a cog segment (58) of a cog lever (52) acting as part of the mechanical gearing.