Recent content by chephy

This is all quite helpful; I'm getting a better understanding, thanks to everyone for replies. Then why do you need the venturi at all? As far as I (now) understand it's to create region of lower static pressure to draw the fuel in. But if the pistons are already doing the "sucking" and...

I think, I am confused now... :) If the change in density is so small, then what causes the creation of "partial vacuum" in the carburetor that some books refer to? And how come expansion - and thus cooling - of the air in the carburetor is given as an explanation for carb ice, if the air...

Thanks for the explanations. So let me just get one question straight: is the air less dense in the narrow section of the carburetor? If not, how can it have lower pressure there? If yes, it turns out that air actually expands when it's forced through a narrow opening. That seems kind of...

Hi, I have a pretty elementary question, but I'm having trouble finding an adequate explanation on the web. I'm trying to figure out how a carburetor works, and am having difficulty figuring out how a venturi tube works. On the one hand, as air flows through a narrow section of a pipe, it...