Yes, this was done on diesel engines for a while.
Yes. If the engine is built to handle enough boost. Volkswagen makes a production car with a twincharger (supercharger and turbocharger). The supercharger helps cancel out the turbo lag at low rpms
Simply put, a turbocharger uses the exhaust to spin a turbine thus compressing air which is then forced into the intake. A supercharger is driven off the engine crankshaft and forces air into the intake. They both do the same thing but the turbocharger uses the exhaust gases to compress air and the supercharger uses the engine's motion.
No. There are two types of charger to give the engine more air than it would be able to suck in naturally; a Supercharger and a Turbocharger. The supercharger is an electrically (usually) driven fan that compresses the air. A turbocharger does the same job, but it is driven by the flow of exhaust gases through a small turbine. Thus the turbocharger has a small lag time, for it depends upon engine speed for its performance. Whereas a supercharger is independent of the engine operation. Of course, many motors manage quite well without either accessory.
An electric supercharger is essentially an electric motor run off a car's alternator driving a high speed fan which attempts to force more air into a car's air intake. The idea is the same as a turbocharger or supercharger, the more air and fuel forced into the combustion chamber the more power that will be developed by the engine. The only difference between a turbocharger or supercharger and the electric supercharger is that the electric supercharger is limited by how much power the car's battery and alternator can supply whereas a turbocharger and supercharger is limited by the amount of power the engine can supply which is significantly greater in comparison.
Neither is safer. they are two different ways of achieving the same thing i.e. compressing the air being fed into an engine. A supercharger uses engine power and is less efficient, but responds quicker. A turbocharger uses exhaust gas pressure, but there is a time lag penalty.
Too expensive.
Volkswagen makes a variant of the Golf called the Golf GT which is only for sale in Europe that has what the company calls a Twincharger. The twin charger is a supercharger and a turbocharger mated to the same engine, in this case a 1.4l 4 cylinder. So, yes it is possible but to my knowledge Volkswagen is the only manufacturer who has done it. The Nissan March was also twin charged way before the golf I believe having a 998cc engine with a turbo and supercharger mated to it.
The supercharger, which uses a belt, driven by the engine, to forcer more air into the intake manifold, and a turbocharger, which uses a turbine driven by exiting exhaust gasses, to do the same thing.
The supercharger uses a belt to drive a compressor that feeds more air to the engine such that more fuel can be ignited; which produces more power. This does have a parasitic drag on the engine, negating some of the gain in power. The turbocharger uses otherwise wasted exhaust gas heat and pressure energy to spin a compressor. This does not have the same parasitic loss as the supercharger and therefore yields a higher efficiency.
the Turbochargers adds some horsepower and acceleration. But superchargers add a lot of torque to your engine. I personally would go with the turbocharger, they are efficient, adds good acceleration, and they are cheaper to buy. They are about the same price turbos dont kick in until 3000 or 3500 rpms on up supers dont require this they both add about the same hp and torque. turbos are made really for smaller engine and supers for bigger
I think your question is which has more power roots supercharger or a centifugal supercharger. Both are superchargers. A roots type will have the same boost from 1000 rpm and up, the procharger gains boost with rpm so it won't have full boost till over 4000 rpm. both have a purpose. A turbocharger is superior to both. A roots and a procharger both use engine horsepower to turn, a turbocharger uses waste heat and the exhaust velocity to operate. the roots is better for lowend performance, the procharger is best for upper rpm performance. the turbocharger is more complicated but it beats both hands down when setup right with a innercooler.
No, they are not the same. An air intake temperature sensor measures the temperature of the air as it enters the engine intake, while an air charge temperature sensor measures the temperature of the air after it has been compressed by the turbocharger or supercharger.