When was the first carburetor invented?
49209#3
The first carburetor was invented by Samuel Morey in 1826. The first person to patent a carburetor for use in a petroleum engine was Siegfried Marcus with his 6 July 1872 patent for a device which mixes fuel with air.
Carburetor
49209#45
The "spread-bore" four-barrel carburetor, first released by Rochester in the 1965 model year as the "Quadrajet" has a much greater "spread" between the sizes of the primary and secondary throttle bores. The primaries in such a carburetor are quite small relative to conventional four-barrel practice, while the secondaries are quite large. The small primaries aid low-speed fuel economy and driveability, while the large secondaries permit maximum performance when it is called for. To tailor airflow through the secondary venturis, each of the secondary throats has an air valve at the top. This is configured much like a choke plate, and is lightly spring-loaded into the closed position. The air valve opens progressively in response to engine speed and throttle opening, gradually allowing more air to flow through the secondary side of the carburetor. Typically, the air valve is linked to metering rods which are raised as the air valve opens, thereby adjusting secondary fuel flow.
Carburetor
3546104#1
Edoardo Weber began his automotive career working for Fiat, first at their Turin plant (in 1914) and later at a dealership in Bologna. After the war, with gasoline prices high, he reached a certain success in selling conversion kits for running trucks on kerosene instead. The company was established as "Fabbrica Italiana Carburatori Weber" in 1923 when Weber produced carburetors as part of a conversion kit for Fiats. Weber pioneered the use of two-stage twin barrel carburetors, with two venturis of different sizes, the smaller one for low speed running and the larger one optimised for high speed use.
Weber carburetor
41512586#0
Carter Carburetor Company in St. Louis, Missouri was established in 1909, and ceased operation in 1985. It was founded by William Carter, who started experimenting with automotive carburetors while running a successful bicycle shop. His first, cast brass carburetor could meter and deliver fuel more accurately than many competing units. He sold Carter Carburetor Company 13 years after founding it to American Car and Foundry Company, a firm older than William Carter. Carl Breer wrote that, upon learning that the Ball family (owners of Ball & Ball) was planning to leave the carburetor business, he set them up with Carter, which continued to produce the Ball & Ball basic designs used by Chrysler.
Carter Carburetor
41512586#1
Carter adapted carburetors for Willys Jeep four-cylinder engines, waterproofing them for water crossings and making it possible to keep the engine going even on a steep incline (the Y-S carburetor). Carter also produced the first American four-barrel carburetor, used for Buick’s 1952 straight-eight, and followed by the WCFB on the 1955 Chrysler C300. This was eventually superseded by the AFB and the AVS. The final Chrysler use of four-barrel Carter carburetors was the Thermo-Quad, which used a lightweight thermoplastic float bowl, on the most powerful Chrysler engines.
Carter Carburetor
18678709#3
"Their first original carburetor, called the "iron pot", appeared on the curved-dash Oldsmobile in 1904." In April 1905 Holley Brothers Company was established with an address at 661-75 Beaubien St., Detroit, Michigan. The brothers then concentrated on the manufacturing of carburetors and ignition systems. As a result of the Motorette Henry Ford commissioned the brothers to produce a carburetor for his Model T. "The carburetor they built for Ford was an immediate success and the brothers founded Holley Carburetor Co., which became one of Ford's biggest suppliers."
Holley Performance Products
49209#28
Alternately to employing a power valve, the carburetor may utilize a "metering rod" or "step-up rod" system to enrich the fuel mixture under high-demand conditions. Such systems were originated by Carter Carburetor in the 1950s for the primary two venturis of their four barrel carburetors, and step-up rods were widely used on most 1-, 2-, and 4-barrel Carter carburetors through the end of production in the 1980s. The step-up rods are tapered at the bottom end, which extends into the main metering jets. The tops of the rods are connected to a vacuum piston or a mechanical linkage which lifts the rods out of the main jets when the throttle is opened (mechanical linkage) or when manifold vacuum drops (vacuum piston). When the step-up rod is lowered into the main jet, it restricts the fuel flow. When the step-up rod is raised out of the jet, more fuel can flow through it. In this manner, the amount of fuel delivered is tailored to the transient demands of the engine. Some 4-barrel carburetors use metering rods only on the primary two venturis, but some use them on both primary and secondary circuits, as in the Rochester Quadrajet.
Carburetor
49209#44
The first four-barrel carburetors, with two primary bores and two secondary bores, were the Carter WCFB and identical Rochester 4GC simultaneously introduced on the 1952 Cadillacs, Oldsmobile 98, Oldsmobile Super 88 and Buick Roadmaster. Oldsmobile referred the new carburetor as the “Quadri-Jet” (original spelling) while Buick called it the “Airpower”.
Carburetor
18595567#0
Dell'Orto is an Italian company, headquartered in Cabiate, specialized in the construction of carburetors and electronic injection systems. The company was founded in 1933 as "Società anonima Gaetano Dell'Orto e figli" (Gaetano Dell’Orto and Sons) but actually only founded by Gaetano's sons, Luigi Piero and Giuseppe. The first production was carburetors for motorbikes. Right before World War II the company started producing carburetors with aluminum body, for competitive racing. Under the second Dell'Orto generation, towards the end of the 60s, the company began producing OEM carburetors for the Fiat group, as well as other Italian and foreign manufacturers (i.e.Flandria, Belgium). At the end of the 1980s,
under the supervision of Luigi Dell'Orto (son of Gaetano), the company's first injection systems were released. In 2006 the company expanded on the Indian market, opening Dell'Orto India. In September 2009 Dell’Orto India Private Limited, founded in 2006 with the cooperation of a local partner, becomes 100% Italian and fully owned by the Dell’Orto family. In 2011 Dellorto decided to establish a new technical and commercial site in China, named Dell’Orto Shanghai trading company. In 2018, Dellorto signed  a strategic joint venture with VARROC  to develop Fuel injection systems for the Indian market and worldwide.
Dell'Orto
37161#35
In 1980, Motorola (now NXP Semiconductors) introduced the first electronic engine control unit, the EEC-III. Its integrated control of engine functions (such as fuel injection and spark timing) is now the standard approach for fuel injection systems. The Motorola technology was installed in Ford North American products.
In the 1970s and 1980s in the U.S. and Japan, the respective federal governments imposed increasingly strict exhaust emission regulations. During that time period, the vast majority of gasoline-fueled automobile and light truck engines did not use fuel injection. To comply with the new regulations, automobile manufacturers often made extensive and complex modifications to the engine carburetor(s). While a simple carburetor system is cheaper to manufacture than a fuel injection system, the more complex carburetor systems installed on many engines in the 1970s were much more costly than the earlier simple carburetors. To more easily comply with emissions regulations, automobile manufacturers began installing fuel injection systems in more gasoline engines during the late 1970s.
Fuel injection