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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.
What else can I help you with?
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 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.
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 causes ignition to occur in a diesel engine?
When the piston compresses the fuel-air mixture, the spark ignites it, causing combustion
What causes engine after fire?
Timing , pure and simple. If the timing is out then your fuel / mixture will detonate when the piston is in the wrong position in the cylinder. This can lead to a backfire
During which stage of engine operation does the burning mixture of air and fuel force the pistons downward?
The burning mixture of air and fuel forces the pistons downward during the power stroke stage of the four-stroke engine operation. This is when the spark plug ignites the compressed air-fuel mixture, causing a rapid expansion of gases that pushes the piston down.
What causes blue smoke in a lawn mower?
Blue smoke indicates the engine is burning oil. If it is a 2-stroke, the fuel/oil mixture has too much oil. If it is a 4-stroke, there is too much oil in the reservoir or the valve seal are leaking, or the piston rings are worn.
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.
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 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 does a 4-stroke engiene work?
A 4-stroke engine operates through four distinct phases: intake, compression, power, and exhaust. During the intake stroke, the engine draws in an air-fuel mixture as the piston moves down. The piston then compresses this mixture in the compression stroke, followed by ignition during the power stroke, where the burning mixture forces the piston down. Finally, in the exhaust stroke, the piston moves back up to expel the exhaust gases, completing the cycle.
Why does your ford escort blow out blue smoke and also have an ideling problem?
most likely do bad piston rings or possibly an improper fuel mixture/////it is burning oil and your plugs are fouled , use hotter plugs
