It's possible that a gasoline engine fonction without a spark?

Question

i mean it's possible to burn the gasoline due to a higher compression (13:1)? instead of spark (that would generate more torque due to bigger pistion and rod ..). it's that possible? why

Answer 1

Years ago with simple points, coil and carb, sometimes people had their car timing off far enought so the car would "diesel" after turning the key off. However, little power can be obtained doing this.

Answer 2

I highly doubt the standard vehicles engine could handle putting the pressure gasoline would need. However, what your describing is how a Diesel engine runs. If you were to do this with gasoline, assuming your engine could handle it, you would need some pretty high dollar "glow plugs" on a cold morning. On a cold morning, or when the engine is cool, the glow plugs heat the cylinder head so that it is a warmer environment for a diesel engine to start up, since it relies on heat and pressure. I'm not sure how much gasoline would have to be compressed and what fuel/air ratio would be best, but i would assume that if it were reletivly feasable, it would have been put into use already.

Hope this helps a little, Good luck.

Answer 3

the only time I've seen a gas engine run without spark was one of the drivers where Iworked at the time pulled in shut off the key and it wouldn't shut down well long story short #1 it was extreamly over-heated #2 it had major carbon build-up on the valves and the carbon was red hot thus being the source of ignition. so anyway I don't believe it can work in dollars and cents.

P.S. that engine had to be replaced..

Answer 4

That's how a diesel engine works.
Have no idea though why a gasoline engine uses sparks.

Answer 5

Just inject the fuel at the right time and you've reinvented the diesel.