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Which piston stroke of the four stroke cycle prepares (squeezes) the fuel mixture for combustion?
The piston stroke that prepares the fuel mixture for combustion in a four-stroke cycle is the compression stroke. During this stroke, the piston moves upward in the cylinder, compressing the air-fuel mixture that was drawn in during the intake stroke. This compression increases the temperature and pressure of the mixture, making it more conducive to ignition when the spark plug fires.
What else can I help you with?
What happens to the piston and the gases during compression stroke?
During the compression stroke in an engine, the piston moves upward, compressing the air-fuel mixture in the combustion chamber. This compression increases the pressure and temperature of the gases, making them more volatile and ready for combustion when the spark plug ignites the mixture.
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.
What happens during the compression stroke in an internal combustion engine?
During the compression stroke in an internal combustion engine, the piston moves upward, compressing the air-fuel mixture in the combustion chamber. This compression increases the pressure and temperature of the mixture, preparing it for ignition.
Which stage occurs just before ignition in interal combustion engine?
The stage that occurs just before ignition in an internal combustion engine is the compression stroke. During this phase, the piston moves upward in the cylinder, compressing the air-fuel mixture to a high pressure and temperature. This compression prepares the mixture for ignition, which is typically initiated by a spark from the spark plug in gasoline engines or by the heat of compression in diesel engines.
What are the four steps of the combustion cycle?
The four steps of the combustion cycle are intake, compression, power, and exhaust. During intake, the air-fuel mixture is drawn into the cylinder. In compression, the mixture is compressed by the piston. In the power stroke, the spark plug ignites the mixture, causing it to expand and drive the piston down. Finally, in the exhaust stroke, the spent gases are pushed out of the cylinder.
When the piston reaches the bottom of its stroke also known as the bottom dead center the intake valve closes and the?
When the piston reaches the bottom dead center (BDC), the intake valve closes, sealing the combustion chamber. This marks the end of the intake stroke and prepares the engine for the compression stroke. As the piston moves back up to the top dead center (TDC), the air-fuel mixture that was drawn in is compressed, leading to a more efficient combustion process in the subsequent ignition phase. This sequence is crucial for the engine's overall performance and efficiency.
What is an combustion engine is about?
Combustion means fire. A combustion engine means that an engine puts a fire in a particular place. A steam engine places a fire underneath a boiler. The water in the boiler expands and drives a piston or turbine. That is attached to a drive shaft and drives the wheels or generator. In a jet engine, the combustion occurs in the combustion chamber. That makes the gas expand and the expanding gas goes out the rear of the engine and pushes the airplane forward. However, I suspect you are interested in the Internal Combustion Engine. In an Internal Combustion Engine, Gasoline or other fuel is mixed with air in the intake manifold. A valve opens. A piston comes down. When the piston goes down, the fuel-air mixture is sucked into the cylinder. Then the valve closes. The piston pushes the mixture up compressing and heating the mixture. When the piston reaches the top, a spark plug sends a spark into the mixture. It burns. It pushes the piston down. That is called the power stroke. It sends power to the crankshaft and to the wheels. Then a valve opens. The piston comes back up and pushes the burned gas out of the cylinder into the exhaust manifold. That is how gasoline becomes useful energy.
What causes ignition to occur in a diesel engine?
When the piston compresses the fuel-air mixture, the spark ignites it, causing combustion
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 type of reaction powers a car?
The combustion of the air and fuel mixture in the combustion chamber gets lit on fire by the spark plug and and pushes the piston down which gets it moving faster and makes it work harder to get the piston back up to TDC (top dead center)
During the stage of internal combustion engine operation in which the piston rises and compresses the fuel in the combustion chamber?
This is called the compression stage. During the four stroke sycle (Otto cycle) the four stokes are induction, compression, power and exhaust. Each piston does this in a set order to even out the stresses caused, and thereby smooth the output. For example the firing order (i.e. power stroke) on a four cylinder engine could be 1,3,4 and 2 or 1,2,4 and 3.
What is the most strokes in a car engine?
Internal combustion engines are 4 stroke: 1) Intake (air/fuel mixture is introduced to combustion chamber) 2) Compression (piston rises to compress this mixture) 3) Ignition (spark is introduced to compressed fuel/air mixture ignited same) 4) Exhaust (waste product is expelled from combustion chamber)
