Patent ID: 7179194

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 ); a first 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 ), wherein rotation of said dynamo-electric unit at a preset speed causes said driving side of the first centrifugal clutch to engage said driven side and thereby connect said engine (ICE 101 ) to said shaft (S 104 and/or S 105 ); a transmission mechanism for connecting said primary dynamo-electric unit to said shaft; a transmission mechanism for connecting said engine to said secondary dynamo-electric unit; a load connected to said shaft (S 104 and/or S 105 ) through an output device; and a second centrifugal clutch (FC 102 ) arranged to engage said load when a speed of said engine is above a preset value, and to disengage said load when a speed of said engine is below a preset value.