What is the purpose of a turbocharger?

Asked by Apr 02, 2010 at 04:38 AM

Question type: Car Customization

11 Answers

11,025

Creates more horsepower by force feeding fuel and Air into the engine overcharging the cylinders and not have to depend on straight vacuum for the fuel/Air Transfer

8,600

It actually only increase the amount of air being forced into the cylinders. The fuel must be increased separately as the pressure in the system and rpms increase.

20

the purpose is to give more fresh air to the cylinders by running a air blower run by the exhaust gases to increase volumetric efficiency and power .

285

Did you seriously just say air blower?

20

hmmm . jus for understanding i mentioned . it performs the action of the air blower .if i am wrong correct it.

285

Its a compressor. It doesnt increase speed of airflow but instead increases the density of air and therefore oxygen. Fuel delivery will be tuned to match increased oxygen content and results in stronger combustion in the pistons. Sorry, I just dont want somebody looking for information to get inaccurate responses. That's why forums are not the best places to get technical information.

20

it not only increasing the density of air and also increases the mass flow rate of the air there by acts as both air compressor and blower( though blower s not the correct name i agree ) because fuel metering is done only on the basis of mass air flow and MAP and temperature, so mass or density alone they cannot calculate for fuel metering. increasing the density of air alone (as you said ) will not increase volumetric efficiency. it requires flow for that only i mentioned blower. try to correct dont try to criticize.

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20

the name air blower i should not have used .its a air pump. i agree but the o2 content in air mostly remains same unless the pressure changes. so mass flow is more important. anyway for burning x qty of fuel u need y vol of air. so by increasing the mass flow to the same volume u r making sure y vol of air is available. it charges the engine with more oxygen .

285

Omg I'm sorry but you're making it even worse. It COMPRESSES AIR, therefore with the flow of air still at the same speed, OF COURSE THE MASS FLOW RATE INCREASES. Because THE AIR IS COMPRESSED. That's why boost is measured in PSI or bars which are units of PRESSURE. Speed of airflow is dependent on the rpm of the engine, which is VOLUME dependent and NOT mass dependent, else turbos wont do anything at all. And the O2 content will increase. Compressed air = denser air = denser concentration of oxygen. That's the whole purpose of forced induction - to force a greater amount of oxygen to fill a piston to combust with fuel via compression. Its the same reason you use Nitrous Oxide - it increases oxygen concentration from 21% to about 30+%. Please read an engineering textbook and stop reading stuff off the internet.

285

Somebody else help me out here. Don't want the OP to get wrong information.

it sure makes your heart beat faster when stepping on the throttle he he

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