How Does a Carburetor Work?

A carburetor is a device used in internal combustion engines to mix air and fuel in the correct proportion for efficient combustion. Up until the 1990s, carburetors were widely used in gasoline engines powering automobiles, motorcycles, and other vehicles before the pervasive implementation of fuel injection systems.


A four-barrel carburetor.
A four-barrel carburetor.

History of the Carburetor

The carburetor has a long history that dates to the early days of the internal combustion engine. The first carburetor-like device was developed by a Frenchman named Jean Joseph Étienne Lenoir in 1860. Lenoir’s apparatus used a simple spray nozzle to mix fuel and air, but it was not very efficient.

The first true carburetor was invented by German engineer Wilhelm Maybach in the 1880s. Maybach’s carburetor was a simple device that used a float to regulate the fuel level and a needle valve to control the flow of fuel. It was first used in Maybach’s internal combustion engine, which powered the world’s first four-wheeled automobile, the 1886 Benz Patent Motorwagen. The Maybach name, incidentally, still adorns high-end German models, notably the Mercedes-Maybach.

Matt Keegan
Author: Matthew Keegan
Matt Keegan is a journalist, media professional, and owner of this website. He has an extensive writing background and has covered the automotive sector continuously since 2004. When not driving and evaluating new vehicles, Matt enjoys spending his time outdoors.

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