A rotational element coupling device in a supercharger includes a rotatable output shaft having tapered external splines and an output shaft axis of rotation. A coupling disk has a disk axis of rotation coaxial with the output shaft axis of rotation, a tap...

A rotary blower (26) of the Roots type, used as an engine supercharger, comprising a housing (50,52) including a forward wall portion (52F) defining an inlet port (30) disposed toward the upper portion of the housing. Typically, the housing defines an outl...

The internal combustion motor (1) has a crankshaft (5), which drives a motor output shaft (15) through a variable reduction gear (13). A second mechanical and variable reduction gear (32) drives the turbo blower (33), using a continuously variable transmis...

The present invention provides a control system and method of controlling a supercharger having an input and a pair of rotors. The method comprises providing a magnetic particle clutch having an input member; an output member and a source of magnetic flux....