How does the internal combustion engine work?
Answers:
induction compression power exhaust
When fuel is burned inside the engine. Its burned inside the cylinder and the explosion of the gas created will push a position in much the same the explosive force of gun powder in a barrel will push the bullet.
There are four cycles to a external combustion engine. The first is the Intake where the position moves down and creates a vaccum to suck in air and gas from the Carburetor into the intake manifold then past the open intake valve into the Cylinder. The exhaust valve remains closed as this happens.
Second is Compression. Both valves (in take and exhaust) remain closed as the position moves upward to compress the mixture of air and gas. Now its only a fraction of its size.
Thrid is Power. When position reaches Top Dead Center the electrical spark ignites the mixture which explodes. The explosion forces the piston downwards creating power to turn the Camshaft. Both valves are still closed.
Fourth is Exhaust. When the pistion reaches Bottom Dead Center the Exhaust valve open. As the piston moves upward it forces the burned gas out of the cylinder and into the exhaust manifold. When the piston reach Top Dead Center the Exhaust valve closes and the Intake opens for another cycle to start over.
Very well apparently. It has changed very little in the last 80 years.
go to howthingswork.com, look up engines and it'll be there with pictures and everything.
you have gas coming into the cylinder, the spark plug ignites the fuel, pushing the piston up which in turn, turns the crank shaft which in turn turns the axel wich turns the tires ect. the more cylinders you have, the more spark plugs in the, ie, v4,v6, v8. the more power you have. Each cylinder has a sparkplug in it which when it ignites the fuel moves the auto. I hope that explains it ok!
Suck, squeeze, bang, blow!
Piston goes down with inlet valves open- sucks in fuel and air.
Piston rises - compresses mixture.
Spark plug sparks - fuel ignites, drives piston down.
Piston rises exhaust valves open and spent gasses expelled.
In diesels the fuel is also injected in at the right moment as the mixture is compressed higher and the pressure makes it hot enough to ignite without the need for a spark.
suck, push, bang, whiz.
If you need any more details just ask
Well. If you took my last car as an example. IT DOESN'T!!
I'll make it easy.
Suck, Squeeze, Bang, Blow, you will never forget.
Suck- Fuel and air are drawn into the cylinder, piston moves down creating space for this mixture in the cylinder
Squeeze - The inlet valve closes, the piston moves upwards, mixing the fuel and air, and compressing it so that it is superheated.
Bang - A spark is given to the volatile fuel/air mix with both inlet and exhaust valve closed, the piston moves back down with the explosion.
Blow - The exhaust valve opens and the piston moves up due to a reciprocal movement by another piston on the crankshaft, and all gasses are expelled through the exhaust.
SUCK SQUEEZE BANG BLOW
Generally, it captures the pressure resulting from the combustion of a fuel, and turns it into a linear force that can be used to do work. there are many types of internal combustion engines, a turbine, for one. The difference from an external combustion engine is that an external combustion engine uses the heat from the combustion to drive a secondary engine that produces force/motion.
JUST LIKE YOUR COMPUTER! DUH!
Presumably you mean a piston engine, rather than rotary or turbine.
There are 2-stroke and 4-stroke engines, compression ignition and spark ignition.
In the 2-stroke petrol engine the Induction, Compression, Ignition and Exhaust stages take place in one rotation of the crankshaft. There are ports in the cylinder wall that are open or covered by the piston.
As the piston rises fuel/air mixture is drawn into the crankcase from the carburettor. Just before the piston reaches the highest point the mixture drawn on during the previous rotaion is ignited by a spark. On the exhaust/power stroke the piston descends, pushed down by the hot gas then exhaust port is uncovered, allowing exhaust gasses to escape into the exhaust pipe. The fresh mixture in the crank-case is compressed as the piston descends so when the transfer ports (these go from the crank-case into the cylinder) are uncovered, near the bottom of the stroke, the mixture is forced up into the cylinder.
The fresh mixture is held in the crank-case by the lower part of the piston covering the inlet tract from the carburettor at the bottom of the stroke. There may also be a reed valve or rotary disc valve in the inlet tact.
Here's the Readers Digest version: The engine has cylinders, and in each cylinder there is a piston that moves up and down. It works on a 4-cycle process. At the beginning of the first cycle, the piston is in the down position. Two or four valves open up, injecting a mixture of gasoline and air (15 parts air to 1 part gasoline) into the cylinder. Now the piston moves up (first cycle), compressing that mixture. When the piston gets all the way to the top position, the spark plug ignites the mixture of gas and air, which forces the piston back down (second cycle). When the piston hits the bottom position, two or four exhaust valves open up. The piston then goes back up (third cycle) to push the exhaust fumes out. The exhaust valves then close and the piston goes back down (fourth cycle). Then the process starts all over again.
Most engines have at least 4 cylinders, but some have more. The pistons in each cylinder do NOT move exactly like the others. They're "staggered" so all the cylinders are not firing at once. This makes the engine run more efficiently and smoothly.
All the pistons are tied to a drive shaft. That drive shaft is connected to the transmission, which is made up of all kinds of gears that convert the revolutions from the drive shaft into revolutions that will move the vehicle. Different gear ratios are needed to move a car from a standing still position, as opposed to moving a car faster once it's up to speed. That's why each transmission has at least three gears (some commercial trucks have as many as 13).
At the front of the engine is a flywheel, which is just a big gear that is connected to the front of the drive shaft. When you start the car, the battery sends electricity to the starter (which spins the flywheel) and to the spark plugs. Eventually, if everything is working correctly, the engine will "catch" and will start running on its own. Once the engine is running, the alternator (which is just an electric generator attached to one of the belts at the front of the engine) will provide all the electricity the car needs. That's why you don't have to keep replacing car batteries like you do in an MP3 player.
Does this help?
Intake, compression, power, exhaust. As piston moves down, intake valve opens letting fuel and air into cylinder, at bottom of stroke the intake valve will close, when piston come up this is the compression stroke, all valves are closed. The fuel mixture is ignited by way of spark. Burned gases expand and force the piston down, this is the power stroke. Piston comes up and exhaust valve open before it reaches the top, forcing spent gases out. Then all this starts over again.
Go to http://auto.howstuffworks.com then search internal combustion engine.
Internal combustion engine works on 'The Otto Cycle' Do a Google search for Otto Cycle and you should get ample information.
Quite well these days - thanks for asking!
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