Patent ID: 6343473
Filing Date: 2002-02-05
Classification: F02B,Y02T

Abstract:
A hybrid supercharged engine system, comprising:an engine having an inlet for air and an outlet for exhaust gases and including an output crank shaft; a turbocharger having a turbine connected to the engine output and a compressor having an inlet and pressurization outlet connected to the engine inlet, said turbocharger being capable of producing a maximum compressor output at an engine speed which is higher than a maximum torque engine speed for said engine; a volume type supercharger having an air intake, an air outlet, and a drive shaft, said drive shaft being drivingly coupled to said engine crank shaft to drive said supercharger to provide pressurized air at said air outlet, said supercharger air outlet being connected to said turbocharger air inlet to supply said pressurized air to said turbocharger; an air flow adjuster connected to said supercharger for controlling air pressure at said supercharger outlet; and sensors for detecting engine speed and engine load and controlling said air flow adjuster to cause said supercharger to change the pressure of the air supplied by said turbocharger to said engine in inverse proportion to the speed of said engine.