How does an engine worl Flashcards
How many cylinders does an engine usually have?
The engine has four, five, six or eight cylinders.
how is the gas distributed to the cylinders?
The gas is distributed to each of the cylinders by the fuel injection system.
How does the gas make the cylinders work?
The fuel injectors vaporize the gas, or turn it into a mist, and the spark plugs in the cylinder ignite the vaporized gas and cause it to explode.
what does cylinder do when it moves?
The explosion pushes down a piston in the cylinder, causing the crankshaft to turn - which in turn, turns the wheels
what is the most common type of engine in a car
internal combustion engine - means it converts an explosions energy into motion
what happens to the cylinder when you push on the gas pedal?
it allows more air into the cylinder. The oxygen in the air creates a bigger explosion - which provides more power.
why does an engine need motor oil?
the oil reduces friction in the parts that rub up against one another. It also cleans the engine, and prevents those parts from overheating.
What are the strokes in a four stroke engine?
The different strokes are intake, compression, power and exhaust. Engines have cylinders where the strokes take place, and a controlled explosion happens in the cylinder to give the car its power.
In the intake stroke, a valve opens, and the piston goes down, opening space for fuel and air to mix. In the compression stroke, the piston pushes up and compresses the fuel. In the power or combustion stroke, the spark plug makes the compressed air and fuel mix explode, moving the piston down. In the exhaust cycle, the exhaust valve opens, and the exhaust gas is pressed out as the piston goes up.
