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The burning air-fuel mixture forces the piston down on what stroke?
Wiki User
∙ 16y ago
Depends on if this engine is a 2 stroke, 4 stroke, or rotary engine. I assume you are referring to a 4 stroke as found in the vast majority of automobiles built today. The answer is, At the top of the compression stroke. The 4 strokes of a 4 cycle engine are:
# intake/induction stroke # compression stroke # power stroke # exhaust stroke
Depends on if this engine is a 2 stroke, 4 stroke, or rotary engine. I assume you are referring to a 4 stroke as found in the vast majority of automobiles built today. The answer is, At the top of the compression stroke. The 4 strokes of a 4 cycle engine are:
# intake/induction stroke # compression stroke # power stroke # exhaust stroke
Wiki User
∙ 16y ago
Wiki User
∙ 16y agoDepends on if this engine is a 2 stroke, 4 stroke, or rotary engine. I assume you are referring to a 4 stroke as found in the vast majority of automobiles built today. The answer is, At the top of the compression stroke. The 4 strokes of a 4 cycle engine are:
# intake/induction stroke # compression stroke # power stroke # exhaust stroke
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How does the burning of fuel mixture causes a piston to move?
Fuels are delivered to piston engines as a gas, either as natural gas or vaporized liquid fuel. Burning the fuel mixture changes the cool fuel into a hot vapor (CO2 and H2O). The hot vapor takes up more room than the cool inlet fuel and expands. The expanding gases move the piston.
During which stage of engine operation does the burning mixture of air and fuel force the piston downward?
This is during "combustion" which is the "power" stage of the operation.
What is the function of the spark from the spark plug?
The purpose of the spark is to ignite the air fuel mixture in the combustion chamber. When the air fuel mixture ignites the expansion of the burning air fuel mixture causes the piston to go down thus turning the crankshaft.
What is internal-combustion engine?
An internal combustion engine is one where a gas/air mixture is ignited and burned in a closed cylinder, and forces a piston to move. In other words, all piston engines in cars, trucks, bikes aircraft.
Why can't a car function without gasoline?
Cars burn gasoline. Gasoline is pumped into the engine's intake, where it is mixed with air, called an air/fuel mixture. After it is mixed, a valve in the engines cylinder head opens and draws the air/fuel mixture into a cylinder. The valve closes and traps the mixture in the cylinder. In the cylinder is piston which moves up and compresses the air/fuel mixture. In the top of the cylinder, in the cylinder head is a spark plug, which ignites the compressed air/fuel mixture. The mixture explodes and forces the piston back down the cylinder. The piston is connected to a shaft, called the crank, which is connected to the car's transmission, which is connected to the car's drive wheels. When the piston is forced down by the exploding air/fuel mixture it forces the crank to turn, which turns the transmission, which turns the wheels. Without the gasoline, there would be nothing make the explosion which drives the car. Look at the linked page for a more in depth explanation of how an engine works.
What is the purpose of ignition system?
the purpose is to ignite the fuel /air mixture at such a time that the resulting burn causes expansions of the gases which forces the piston down and so turns the crankshaft.
How do you get combustion?
Any combustion needs Fuel, Oxygen and heat. In a petrol engine, the fuel and air are mixed in either a carburettor, or a fuel injector system. The heat is supplied by the spark plug and maintained once the mixture is burning rapidly. The massive expansion of the burning gas, is used to push the piston. In a CI (compression ignition diesel) engine, The air is drawn in, diesel fuel is sprayed into it and the piston compresses it. This compression alone, causes heat, which is enough to cause combustion. The same expansion of the burning gas, is used to do work on the piston.
What is piston effort?
The driving force action on the piston is called piston effort.In other words the net resultant of all the other forces acting on the piston is called piston effort.
How to get oil out my piston?
If there is oil getting to the top of the piston and burning then you have a blown head gasket or the piston rings are worn or broken. Engine must be disassembled.
What does a spark plug do on a lawn mower?
The fuel/air mixture is compressed by the piston moving upwards, the spark plug ignites that mixture and causes an explosion which pushes the piston downward.
What is the mode of operation of a four stroke petrol engine?
Not sure what you are asking here... But here goes: Stroke 1: Intake stroke. The intake valve is open, and fuel air mixture is sucked into the cylinder as the piston moves down. Stroke 2: The intake valve is closed, and the fuel air mixture is compressed as the piston moves up. Stroke 3: The power stroke. The compressed fuel air mixture is ignited by the spark plug. The resulting explosion forces the piston down, providing power. Stroke 4: The exhaust valve is opened, and the spent fuel air mixture (now exhaust) is pushed out of the cylinder by the rising piston. Repeat indefinitely...
How does burning gasoline make a car move?
There are four steps to the cycle of a car's engine. These steps involve the combustion, or burning, of gasoline as a force that drives the procedure, and therefore moves the car. (1) Intake: The cyllinder of the engine has a piston that can move up and down, much like pushing a cotton ball up a straw. The intake stage occurs when the piston moves down the shaft. The vacuum created by the falling piston pulls gas and air into the space. (2) Compression: As more of the air/gas mixture enters the shaft of the piston, pressure increases. (3) Power/ Ignition: Eventually, the pressure reaches a critical point where the gas/ air mixture ignites, forcing the piston up and moving the car. (4) Exhaust: After the explosion, the exhaust (smoke) is released from the piston as it moves back to the rest position and begins to take in more gas and air.
