Friday, June 19, 2009

model engines

Model engines use a glow plug, and a contra-piston, like diesels.

Do carbs push (press) and pull (vac) on the piston motion?

2 comments:

pavo000 said...

Bernouli eq to discribe the venturi restricted flow to cause a vacuum. Like the flow of water through the side arm of the intake vac line.

I guess.

pavo000 said...

combustion of a liquid in air matrix to yield more moles of gas, increase in vol. in a closed (gasket) system. Press. build up across the lines, in the head, lines from the top end to the carb. port. For air flow, venturi causes side vac for fuel delivery to the heads, in the 1: 14.7 fuel: air mix. Throttle causes said air fuel mix to choke, or otherwise rev. at high(er) rpm.