Hello. Does anyone know what parts of a gas inspirator (venturi) primarily affect the fuel/air ratio? I've tried searching high and low for the answer to this and can't find it anywhere. It seems like a black art or something.
See, what I'm doing is building a reproduction of a pest scaring device which makes a loud noise to scare away birds and animals from crops, just in case anyone was curious. The goal is to have an adjustable fuel/air ratio to vary the flame speed. This changes the "tone" that is produced. Maximum flame speed occurs when the mixture is stoichiometric and tapers off on either side. I figured someone on here would know about this because sometimes people make their own custom burners for their kilns.
Thank you, Robert