F - Mech Eng,Light,Heat,Weapons – 02 – B
Patent
F - Mech Eng,Light,Heat,Weapons
02
B
60/8
F02B 37/00 (2006.01) F02B 37/10 (2006.01) F02B 67/08 (2006.01)
Patent
CA 1060220
RANKINE CYCLE TURBOCHARGER DRIVE Abstract of the Disclosure A Rankine cycle engine driven by heat from the exhaust, oil and coolant of a turbocharged internal combustion engine is coupled to assist in the driving of the turbocharger to compen- sate for the decrease in engine torque and torque response due to poor turbocharger efficiency at low speeds. The Rankine cycle engine includes a working fluid such as Freon which is pumped through a preheater for heating by the oil and coolant and through a vapor generator for vaporization in response to heat from the engine exhaust. The vaporized working fluid is applied to an expansion device such as a turbine for producing mechanical motion prior to being condensed for recirculation. The turbine or other expansion device is coupled to the turbocharger by a clutch which engages to assist in driving the turbocharger when the speed of the turbocharger drops below a nominal value. Alternatively, the turbine or other expansion device is coupled to drive a compressor for generating pressurized air which is combined with the pressurized air from the turbocharger.
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