An updraft carburetor is a type of carburetor in which the air flows upward within the device.Collector Car Restoration Bible: Practical Techniques for Professional Results By Matt Joseph Page 156 Other types are downdraft and sidedraft.
An updraft carburetor was the first type in common use.New Automotive Encyclopedia: Complete Course in Automotive Mechanics with Special Emphasis on Fundamental Principles, Trouble Shooting 1954 In it air flows upward into the venturi to mix with the fuel.Power Equipment Engine Technology By Edward Abdo on Page 160 An updraft carburetor may need a drip collector.Boating Jul-Aug 1971
See also Pressure carburetor Fuel injection
References
External links Updraft Carburetor diagram in Agricultural Mechanics: Fundamentals & Applications By Ray V Herren