Instruct: Given a question, retrieve passages that answer the question.
Query: When was the first carburetor invented?
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.
Donát Bánki (born as Donát Lőwinger, 6 June 1859 – 1 August 1922)
was a Hungarian mechanical engineer and inventor. In 1893 he invented the carburetor for the stationary engine, together with János Csonka (known as the Bánki-Csonka engine). The invention is often, incorrectly credited to the German Wilhelm Maybach, who submitted his patent half a year after Bánki and Csonka. Bánki also greatly contributed to the design of compressors for combustion engines. He invented a water-turbine, as well, which is named after him.
Carburetor icing is caused by the temperature drop in the carburetor, as an effect of fuel vaporization, and the temperature drop associated with the pressure drop in the venturi. If the temperature drops below freezing, water vapor will freeze onto the throttle valve, and other internal surfaces of the carburetor. The venturi effect can drop the ambient air temperature by 70 absolute degrees Fahrenheit (F), or 38.89 absolute degrees Celsius (C). In other words, air at an outside temperature of 100 degree F, can drop to 30 degrees F in the carburetor. Carburetor icing most often occurs when the outside air temperature is below 70 degrees F (21 degrees C) and the relative humidity is above 80 percent. 
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.
Starting out with the production and distribution of die-casting products, Zama developed into the world’s largest manufacturer of diaphragm carburetors and sells further products nowadays. Zama's first carburetor was produced in 1975, and the production of oil pumps was initiated in 2003. Further milestones for Zama were the production of their first electronic carburetor in 2009 and the production of their first solenoid valve in 2016.
The EEC-II controlled air-fuel ratio via the Ford proprietary model 7200 Variable Venturi (VV) Carburetor. This was the last carburetor designed and built by Ford US. It was considered to be the pinnacle of carburetor design. Air-fuel ratio was controlled by a stepper motor that operated a rack which moved a pintle that opened and closed the float bowl vent. When closed, no air could enter the bowl, causing the fuel mixture to be lean. When open, the fuel mixture was rich. While this carburetor worked well, it was extremely expensive to manufacture. Each carburetor was hand-calibrated in a pressure controlled room.
Carburetor icing is caused by the temperature drop in the carburetor, as an effect of fuel vaporization, and the temperature drop associated with the pressure drop in the venturi. If the temperature drops below freezing, water vapor will freeze onto the throttle valve, and other internal surfaces of the carburetor. The venturi effect can drop the ambient air temperature by 70 absolute degrees Fahrenheit (F), or 38.89 absolute degrees Celsius (C). In other words, air at an outside temperature of 100 degree F, can drop to 30 degrees F in the carburetor. Carburetor icing most often occurs when the outside air temperature is below 70 degrees F (21 degrees C) and the relative humidity is above 80 percent. 
Older engines used updraft carburetors, where the air enters from below the carburetor and exits through the top. This had the advantage of never flooding the engine, as any liquid fuel droplets would fall out of the carburetor instead of into the intake manifold; it also lent itself to use of an oil bath air cleaner, where a pool of oil below a mesh element below the carburetor is sucked up into the mesh and the air is drawn through the oil-covered mesh; this was an effective system in a time when paper air filters did not exist.
The pressure carburetor solved the problem. It operates on pressure alone, meaning that gravity no longer has any effect. For that reason, the pressure carburetor operates reliably when the plane is in any flight attitude. The fact that a pressure carburetor operates on the principle of fuel under positive pressure makes it a form of fuel injection.
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.
The XZ550 was the first Yamaha model to feature automotive-style downdraft carburetors with the air cleaner box mounted atop the carburetors, as opposed to most motorcycles' sidedraft carburetors with their side-mounted air cleaners. While downdraft carburetors flow air into the engine more efficiently than sidedraft carburetors, the height of the carburetors and their airbox required Yamaha to design a large tunnel into the bottom of the gas tank. While the tank holds 17 liters(4.5 gallons) of fuel, it looks much larger thanks to the tunnel and suggests that the bike is top-heavy, which it is not.
1895: Frederick William Lanchester and his brother build the first petrol driven four-wheeled car in Britain. Lanchester also experiments with the wick carburetor, fuel injection, turbochargers and invents the accelerator pedal and first uses the pendulum governor for controlling the speed of a car engine. In 1893 he designs and builds his first engine (a vertical single cylinder) that is fitted to the first British motorboat.
In 1898, Donát Bánki invented the high-compression engine with a dual carburetor,
an evaporation method used ever since.
As engine fires occurred with the B-36's radial engines, some crews humorously changed the aircraft's slogan from "six turning, four burning" into "two turning, two burning, two smoking, two joking, and two more unaccounted for." This problem was exacerbated by the propellers' pusher configuration, which increased carburetor icing. The design of the R-4360 engine tacitly assumed that it would be mounted in the conventional tractor configuration—propeller/air intake/28 cylinders/carburetor—with air flowing in that order. In this configuration, the carburetor is bathed in warmed air flowing past the engine, and so is unlikely to ice up. However, the R-4360 engines in the B-36 were mounted backwards, in the pusher configuration—air intake/carburetor/28 cylinders/propeller. The carburetor was now in front of the engine and so could not benefit from engine heat, and also made more traditional short term carburetor heat systems unsuitable. Hence, when intake air was cold and humid, ice gradually obstructed the carburetor air intake, which in turn gradually increased the richness of the air/fuel mixture until the unburned fuel in the exhaust caught fire. Three engine fires of this nature led to the first loss of an American nuclear weapon when a B-36 crashed in February 1950.
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 Dung is a Malaysian punk rock band formed in 1991 in Kuala Lumpur. Formed by bassist Fendi as a band called Stormfish but later changed its name to Carburetor Dung when guitarist Joe Kidd joined the fold. The name came from Lester Bangs' book "Psychotic Reactions and Carburetor Dung".
"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." 
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. 
When carburetors are used in aircraft with piston engines, special designs and features are needed to prevent fuel starvation during inverted flight. Later engines used an early form of fuel injection known as a pressure carburetor.
The most basic carbureted engines, such as single cylinder Briggs & Stratton lawn-mower engines, feature a single small throttle plate over a basic carburetor with a single venturi. The throttle is either open or closed (although there is always a small hole or other bypass to allow a small amount of air to flow through so the engine can idle when the throttle is closed), or some intermediate position. Since air velocity is crucial to the functioning of a carburetor, to keep average air velocity up, larger engines require more complex carburetors with multiple small venturis, typically two or four (these venturis are commonly called "barrels). A typical "2-barrel" carburetor uses a single oval or rectangular throttle plate, and works similarly to a single venturi carburetor, but with two small openings instead of one. A 4-venturi carburetor has two pairs of venturis, each pair regulated by a single oval or rectangular throttle plate. Under normal operation, only one throttle plate (the "primary") opens when the accelerator pedal is pressed, allowing more air into the engine, but keeping overall airflow velocity through the carburetor high (thus improving efficiency). The "secondary" throttle is operated either mechanically when the primary plate is opened past a certain amount, or via engine vacuum, influenced by the position of the accelerator pedal and engine load, allowing for greater air flow into the engine at high RPM and load and better efficiency at low RPM's. Multiple 2-venturi or 4-venturi carburetors can be used simultaneously in situations where maximum engine power is of priority.
Most fuel injected cars have a single throttle, contained in a "throttle body". Vehicles can sometimes employ more than one throttle body, connected by linkages to operate simultaneously, which improves throttle response and allows a straighter path for the airflow to the cylinder head, as well as for equal-distance intake runners of short length, difficult to achieve when all the runners have to travel to certain location to connect to a single throttle body, at the cost of greater complexity and packaging issues. At the extreme, higher-performance cars like the E92 BMW M3 and Ferraris, and high-performance motorcycles like the Yamaha R6, can use a separate throttle body for each cylinder, often called ""individual throttle bodies"" or ITBs. Although rare in production vehicles, these are common equipment on many racing cars and modified street vehicles. This practice hearkens back to the days when many high performance cars were given one, small, single-venturi carburetor for each cylinder or pair of cylinders (i.e. Weber, SU carburetors), each one with their own small throttle plate inside. In a carburetor, the smaller throttle opening also allowed for more precise and fast carburetor response, as well as better atomization of the fuel when running at low engine speeds.
A throttle "body" is somewhat analogous to the carburetor in a non-injected engine, although it is important to remember that a "throttle body" is not the same thing as a "throttle", and that carbureted engines have throttles as well. A throttle body simply supplies a convenient place to mount a throttle in the absence of a carburetor venturi. Carburetors are an older technology, which mechanically modulate the amount of air flow (with an internal throttle plate) and combine air and fuel together (venturi). Cars with fuel injection don't need a mechanical device to meter the fuel flow, since that duty is taken over by injectors in the intake pathways (for multipoint fuel injection systems) or cylinders (for direct injection systems) coupled with electronic sensors and computers which precisely calculate how long should a certain injector stay open and therefore how much fuel should be injected by each injection pulse. However, they "do" still need a throttle to control the airflow into the engine, together with a sensor that detects its current opening angle, so that the correct air/fuel ratio can be met at any RPM and engine load combination. The simplest way to do this is to simply remove the carburetor unit, and bolt a simple unit containing a throttle body and fuel injectors on instead. This is known as "throttle body injection" (called TBI by General Motors and CFI by Ford), and it allows an older engine design to be converted from carburetor to fuel injection without significantly altering the intake manifold design. More complex later designs use intake manifolds, and even cylinder heads, specially designed for the inclusion of injectors.
Float type carburetors work best when in a stable operating condition. General aviation aircraft operate in a range of conditions not much different from that of an automobile, so a float type carburetor may be all that is needed. Large or fast aircraft are a different matter, especially when considering that fighter aircraft may fly inverted, or through a series of high g turns, climbs and dives, all at a wide range of speeds and altitudes, and in a very short time.
A floatless pressure carburetor is a type of aircraft fuel control that provides very accurate fuel delivery, prevents ice from forming in the carburetor and prevents fuel starvation during negative "G" and inverted flight by eliminating the customary float-controlled fuel inlet valve. Unlike the float-type carburetor fuel system that relies on venturi suction to draw fuel into the engine, a pressure carburetor only uses the venturi to measure the mass airflow into the engine and manages the flow of fuel that is continuously under pressure from the fuel pump to the spray nozzle. In 1936, the first Bendix-Stromberg pressure carburetor (a model PD12-B) was installed and flown on an Allison V-1710-7.
Constant vacuum carburetors, also called variable choke carburetors and constant velocity carburetors, are carburetors where the throttle cable was connected directly to the throttle cable plate. Pulling the cord caused raw gasoline to enter the carburetor, creating a large emission of hydrocarbons.[20]
The invention of the carburetor helped the development of automobiles, as previously no method was known to correctly mix the fuel and air for engines.
Two people leave the US Navy after having served ten years as a sailor. Sandy is one of them and later invents a carburetor that should increase the speed that powered boats will run. When testing it, he accidentally sinks a boat and has to pay for it. Now he is broke and enters a boat contest. To win, he has to invent the fastest boat in the world.