How Do Cars Propel and Planes Fly with Different Engines?

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SUMMARY

This discussion clarifies the propulsion mechanisms of cars and planes, emphasizing that cars utilize combustion engines where fuel burns to create force on pistons connected to a crankshaft, ultimately driving the wheels. The transmission plays a crucial role in transferring this force to the wheels. In contrast, propeller planes typically use spark ignition reciprocating engines, similar to car engines but designed for higher power, while modern aircraft employ gas turbines for propulsion, including turboprops and jet engines.

PREREQUISITES
  • Understanding of combustion engine mechanics
  • Familiarity with crankshaft and transmission functions
  • Knowledge of aircraft engine types, specifically spark ignition and gas turbine engines
  • Basic principles of propulsion in vehicles
NEXT STEPS
  • Research the mechanics of combustion engines, focusing on piston movement and crankshaft operation
  • Explore the differences between spark ignition reciprocating engines and gas turbine engines
  • Learn about the role of transmissions in vehicle propulsion
  • Investigate the historical development of aircraft engines from WW1 to modern designs
USEFUL FOR

Automotive engineers, aviation enthusiasts, students of mechanical engineering, and anyone interested in the principles of vehicle propulsion.

Mozart
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Hello I have a few questions regarding cars and planes.

I don't understand how a car or any locomotive with a combustion engine is propelled. I understand up until how a mixture of air, and fuel is pumped into a cylinder, a piston rises, and the spark ignites the explosion, and then the exhaust port opens allowing for the exhaust to travel somewhere. Does the force created by the explosion go towards the exhaust port, and that is what gives the car its propulsion? Once the thrust is directed in that direction where does it go? I was told once that the transmission is what gives a car its propulsion so I am thinking now does the force end up going to the trasmission? I am just very confused.

I would also like to know how a car reverses, and what allows for this.

As for planes what kind of engines were used on old fashioned ones from like ww1, and ww2? The ones with the propellers. Were they anything like gas turbine engines on modern planes?
 
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Car
1. It is not an explosion in the combustion chamber. It is burning. An explosion can occur but it would damage the engine.
2. The force is applied on the piston which is connected to a crankshaft which rotates the wheels. Try wikipedia or howstuffworks for the basics of a car engine. They explain the car engine basics pretty well.

Planes
Propeller planes normally use spark ignition reciprocating engines aka car engines only they are many in number for high power with some other small differences.

Gas turbines are used as turboprops in helicopters, propeller planes(I think) and jet planes, generation of electricity, etc.
 
Thank you!
 

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