r1ceburner
Member
For those of you who were paying attention, the guy talking about the electric supercharger, was not talking about one of those dumb 12volt DC motors. I believe that he was talking about fixing an electric motor to the turbine itself and using the electric motor to spool the turbo mechanically, not pneumatically. The benefit there is a direct application of energy to the turbine, which is LOADS more efficient than using an electric blower to push air into the trubo, waiting for the force of the extra air to accelerate the turbine wheel. A typical DC motor is only going to be about 79% efficient at turning input power (electricity) into output power (torque). Putting a fan on the electric motor will only further degrade the efficiency of the system because of aerodynaic drag and intertial forces required to accelerate the fan.
By directly applying the electric motor's torque to the turbine wheel, you do not convert electric energy into torque and then torque into airflow. All of the output energy of the electric motor is directly applied to accelerating the turbo.
Mazda has already been playing with this technology.
Also see Here and Here
By directly applying the electric motor's torque to the turbine wheel, you do not convert electric energy into torque and then torque into airflow. All of the output energy of the electric motor is directly applied to accelerating the turbo.
Mazda has already been playing with this technology.
Also see Here and Here
