Question:
how car engines work?
roro4life_123
2006-01-07 14:12:41 UTC
how car engines work?
Five answers:
klndike803
2006-01-07 17:31:28 UTC
Four Stroke Engine

The four strokes of the cycle are intake, compression, power, and exhaust. Each corresponds to one full stroke of the piston, therefore the complete cycle requires two revolutions of the crankshaft to complete.

1. Intake. During the intake stroke, the piston moves downward, drawing a fresh charge of vaporized fuel/air mixture.

2.Compression. As the piston rises the poppet valve is forced shut by the increased cylinder pressure. Flywheel momentum drives the piston upward, compressing the fuel/air mixture.

3.Power. At the top of the compression stroke the spark plug fires, igniting the compressed fuel. As the fuel burns it expands, driving the piston downward.

4.Exhaust. At the bottom of the power stroke, the exhaust valve is opened by the cam/lifter mechanism. The upward stroke of the piston drives the exhausted fuel out of the cylinder.

The link below has an excellent animation of a single cylinder 4- stroke engine. Cars have multiple cylinders working in alternating strokes of each other.(when one piston is going down , it is pushing it's opposing piston up and vice versa. This force is transferred through a crankshaft to which the pistons are connected to.)
2016-03-27 01:58:01 UTC
Main difference is bike engines are wet sump and,the gearbox is integral with the engine and both have the same oil supply,bike engines have wet multiplate clutches and don't really have a flywheel.gearboxes are simple dog clutch boxes and 2 strokes have no valve gear but bottom end is generally the same except for roller bearing big end and crankcase sealing.Some little bikes have centrifugal clutches and no gearbox as such.I work on truck engines but I would rather play with a 60 kilo bandit engine than some crap 14 liter diesel lump that is nearer a thousand kilos and a right **** to get at.We are talking big jap bikes here not old BSA /Triumph antiques.
different
2006-01-07 19:37:55 UTC
Howstuffworks presents a nice subject of 17 pages about engines ilustrated with media...

so i think it ll enough
mathwiz
2006-01-07 14:16:06 UTC
gas is injected into the cylinder either from the carbuerator of from fuel injection nozzle and is compressed by piston, ignited by spark plug forcing piston down and allowiung exhause to escape.
krazed639
2006-01-15 22:45:16 UTC
pressurefiregas


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