Viscous fluid type heat generator with heat generation increasing means

Abstract From the Canadian patent

A viscous fluid type heat generator including a housing assembly in which a fluid-tight heat generating chamber confining therein a viscous fluid to which a shearing action is applied by a disc-like rotor element rotated by a drive shaft, and having inner wall surfaces confronting outer surfaces of the rotor element the, inner wall surfaces of the fluid-tight heat generating chamber and the outer faces of the rotor element defining a gap in which the viscous fluid is held the rotor, element being provided with one or more through-holes formed in an outer peripheral portion and a radially inner portion thereof with respect to the axis of rotation of the rotor element so that the …