Patent ID: 8237303

Claim:
An organic rankine cycle (ORC) turbo generator for prevention of penetration of a working fluid, comprising: a turbine ( 10 ) including a turbine housing ( 11 ), a turbine blade ( 13 ) rotatably mounted inside the turbine housing ( 11 ), a fluid injection nozzle ( 15 ) mounted inside the turbine housing ( 11 ) so as to inject the working fluid to the turbine blade ( 13 ); a generator ( 30 ) including a generator housing ( 31 ) connected to the turbine housing ( 11 ), a rotor ( 33 ) rotatably mounted inside the generator housing ( 31 ) and a rotary shaft ( 35 ) mounted to the turbine blade ( 13 ), and a first bearing ( 37 ) and a second bearing ( 38 ) mounted at the front and rear ends of the rotor ( 33 ), respectively, so as to support the rotation of the rotary shaft ( 35 ); and working fluid penetration-preventing means ( 50 ) mounted around the rotary shaft ( 35 ) and adapted to block the pressure generated from the turbine ( 10 ) so as to prevent the working fluid injected from the fluid injection nozzle ( 15 ) from being penetrated into the generator ( 30 ).