Patent ID: RE39085

Claim:
A differential combined power distribution system for use in rotational driving applications, comprising: a rotational power source which includes a rotational output shaft coupled to drive a front section load, and also coupled with the input shaft of an electromagnetic coupling device to drive a rear section load, wherein the electromagnetic coupling device includes means for generating a rotating electromagnetically couple with said field; and an operating device which includes means for controlling the electromagnetic coupling device to generate motor driving functions when an input current is applied and to generate variable speed coupling functions through an output current when the electromagnetic coupling device is employed as a generator, the operating device also including means for controlling the electromagnetic coupling device to start the engine and to serve as a power regeneration brake when the engine is the main power source for the front and rear section loads, means for causing the electromagnetic coupling device to charge a battery through a difference between a rotational speed of the rotational field and a rotational speed of the rotor, and means for adjusting the speed difference by controlling a battery charging current, wherein the operating device hereby allows the rotational power source to be driven at a constant speed and at a partially adjustable speed to improve operating efficiency and decrease pollution, with one part of the differential speed output power generated through the electromagnetic coupling device being used for driving one of the loads independently or together with the rotational power source while the remainder of the output power is converted through the generator function of the electromagnetic coupling device to charge the battery.