Yes 1 of the many engins that work on air is a fan
The working fluid in an internal combustion engine like a diesel would simply be the air it sucks in and passes out in the exhaust.
Air is a critical ingredient in the working of an engine. The fuel cannot ignite on its own it must have oxygen to achieve combustion. If the engine is deprived of oxygen the engine will stall. An engine's revolutions are greatly affected by the amount of air entering the engine, this is why people spend countless amounts of money on cold air intakes, turbo and superchargers. A turbo or supercharger force air into the engine making it rev higher and in turn make the car go faster. Cold air intakes work on the theory that cold air is denser and provides a bigger combustion and expands more giving the engine more power. These are achieved by extracting air out of the main airflow running over the front of the vehicle, in the bumper or hood.
It would greatly help to know what engine you have and if it has air conditioning (working or not)
In any engine it usually means your piston rings are worn.
engine not getting free flow of fresh cool air, perhaps fan not working or thermostat not working.
Have you checked that the PCV is working. ( positive crankcase ventilation ) This valve when working sounds like a rattle snake when you take it off and shake it. If you remove it while the engine is running and block it, the engine will slow down due to restricted vacum, then when you put it back in it will pull air from the engine.
Google is a good working search engine.
You might try adding water to the engine. That is what was wrong with mine.
No the turbo runs off of exhaust, then forces the compressed air through the engine.
The engine sucks in air. If the air has dust in it, it will scratch the engine. So the air filter cleans the air.
A carburetors mixes gas and air so the engine will run properly.If the carburetors is not working properly it can cause damage to the car's engine.This will result in the engine stalling or flooding.
If your oxygen sensor stops working the fuel (gasoline) and air mixture will be incorrect. Usually this means your fuel efficiency will decrease -- that is, the engine will burn more gasoline than necessary. It's possible however, if it begins to run too lean (not enough gasoline for the amount of air) it can damage the engine. But, this is unlikely.