AIR PUMP FOR VEHICLES Russian patent published in 2008 - IPC F02B39/06 F01P7/04 

FIELD: transport.

SUBSTANCE: invention relates to air pumps for vehicles, particularly, to supercharging air pump. The proposed device incorporates air pump, for example, impeller 2 coupled with output shaft 4 of vehicle transmission with its input shaft being coupled to the vehicle engine in operation. The aforesaid input and output shaft 6 and 4 are coupled with appropriate gears of a three-way differential planetary gear set. The 3^rd gear and input shaft 6 are linked to rotors 20 and 22, while the terminals of stators 24 and 26 are interconnected via controller 27 wired in the circuit to control electric power flux between the aforesaid components.

EFFECT: pressure variation in wide range with no influence of engine rpm.

20 cl, 5 dwg