Diesel Truck Fan Clutches to Meet the Energy and Environmental Challenges

This paper discusses bearing arrangements designed to maximize stability and load capacity within available envelope dimensions. Also presented is a means of negating the detrimental effects of cylinder reactions in a pneumatic clutch, while at the same time increasing the torque-to-space ratio. These concepts were realized during a study expressly intended to view the various design elements with the requirements of a diesel truck fan clutch in mind.

Further, the study resulted in the development of a nonmodulating, direct acting thermal control valve, specifically engineered to complement the action of a pneumatic fan clutch as part of an overall temperature controlling system.