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A carburetor (also spelled carburettor or carburetter) [1] [2] [3] is a device used by a gasoline internal combustion engine to control and mix air and fuel entering the engine. [4] The primary method of adding fuel to the intake air is through the Venturi effect or Bernoulli's principle in the main metering circuit, though various other ...
Although carburetor technology in automobiles reached a very high degree of sophistication and precision, from the mid-1980s it lost out on cost and flexibility to fuel injection. Simple forms of carburetor remain in widespread use in small engines such as lawn mowers and more sophisticated forms are still used in small motorcycles.
Briggs & Stratton Corporation is an American manufacturer of small engines with headquarters in Wauwatosa, Wisconsin. Engine production averages 10 million units per year as of April 2015. [2] The company reports that it has 13 large facilities in the U.S. and eight more in Australia, Brazil, Canada, China, Mexico, and the Netherlands. The ...
Villiers, used on UK motorcycles and small engines. Walbro and Tillotson carburetors for small engines. Weber carburetor, Italian, now made in Spain, owned by Magneti Marelli. Wheeler–Schebler Carburetor Company. Zama Group, primarily an OEM provider. Zenith Carburetor Company, American subsidiary of Société du carburateur Zénith.
Most small engines use a governor to maintain a constant engine speed under varying loads. Some engines also have a mechanism for the user to adjust the engine speed. Rather than directly controlling the opening of the carburetor throttle, this is usually achieved by adjusting the governor, which in turn regulates the engine speed higher or lower.
Chevrolet delivered three small block engines to Edelbrock for experimentation. He used one engine for testing on a dynamometer and another to test multi-carb manifolds for magazine articles. He prepared the third engine for boat builder Henry Lauterback, who immediately set two world records in Miami, Florida. [4]
Pratt & Whitney R-4360 Wasp Major. The pressure carburetor is the black box on top of the crankcase at the rear of the engine. Pressure carburetors were used on many piston engines of 1940s vintage used in World War II aircraft. They went from being a new design early in the war to being standard equipment on nearly every allied aircraft engine ...
For small engines, even only one half of the carburetor was used, with the other half blinded and partially cut off. The basic carburetor size can be selected by the butterfly valves, for DCO/DCOE the sizes are 38/40/42/45/48/50/55, with 40/45/48/50/55 being more common and available today. Jet size is based on choke size, and choke size is ...