What about Fuel Vapor engines?

Question

Back in the late 1970's there were engines running on fuel vapor. The gasolnie was converted to vapor before it entered the combustion chamber. This allowed for more complete combution(fewer emissions) and gave great fuel ecomony 200mpg with a V-8 engine in a full size auto.

Answer 1

Umm, you mean like a carburetter does or an injector?

ALL petrol engines atomise (vapourise) the fuel before spraying it in. If the atomisation fails, the engine will not usually run at all - or HORRIBLY badly at best.

Answer 2

There is no such thing as a 200 MPG full-sized car. Never was and never will be. There are not enough BTUs of energy in a gallon of gasoline to move a full-size sedan -- especially a 70s vintage one -- anything approaching that distance on a gallon of fuel. Even if you had 100% thermal efficiency (impossible for may reasons) the best that could be done would be in the 75 - 80 MPG range.

The short answer as to why those efforts were abandoned is that the minimal gain was not worth the expense. It was discovered that with computerized controls and electronic fuel injection that greater gains were possible without the inherent risks of fuel gassification.

Answer 3

No V8 ever got 200 mpg, this BS always comes up when gas prices go up.

Usually it is some fool trying to sell something to other fools.

Answer 4

as was said above there is only so much heat available , if the cooling system had no work to do and the exhaust system ran cold you would probably get 80mpg , but these systems prey on peoples ignorance of the laws of physics , sorry

Answer 5

yes but they had no power and wer undrivable.

Answer 6

thank your good old government