Patent ID: 7063641

Claim:
A speed-controlled dynamo-electric compound system, comprising: at least one primary dynamo-electric unit (E 101 ) arranged to rotate a shaft (S 104 and/or S 105 ); at least one centrifugal clutch (FC 101 ) having a driving side connected to the shaft (S 104 and/or S 105 ) and a driven side connected to an engine (ICE 101 ); a load connected to said shaft (S 104 and/or S 105 ) through an output device; a secondary dynamo-electric unit (E 102 ) coupled to said engine (ICE 101 ); an electrical energy storage device (ESD 101 ) connected between said secondary dynamo-electric unit (E 102 ) and said primary dynamo-electric unit (E 101 ); and a controller; wherein said primary dynamo-electric unit (E 101 ) drives said shaft (S 104 ) independently of said engine when a rotation speed of said engine is below a preset speed, wherein rotation of said engine (ICE 101 ) at said preset speed causes said driven side of the clutch to engage said driving side and thereby connect said engine (ICE 101 ) to drive said shaft (S 104 and/or S 105 ), wherein, when said engine (ICE 101 ) is rotating at or above said preset speed and said centrifugal clutch (FC 101 ) is engaged, said controller controls said primary dynamo-electric unit (E 101 ) to selectively drive said shaft (S 104 and/or S 105 ) jointly with said engine or to operate as a generator that is driven by said engine together with said shaft, and wherein said controller includes a central control unit (CCU 101 ), a drive control device (CD 101 ) connected to said primary and secondary dynamo-electric units, and a manual control interface (M 101 ), said drive control device (CD 101 ) being arranged to control a speed of said primary dynamo-electric unit (E 101 ), and further to control whether said primary and secondary dynamo-electric units function as motors, generators, or one of each.