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Animated cut through diagram of a typical fuel injector, a device used to deliver fuel to the internal combustion engine. Fuels burn faster and more efficiently when they present a large surface area to the oxygen in air.
Poulan was founded as Poulan Saw Co. in 1946 by chainsaw pioneer Claude Poulan in Shreveport, Louisiana.Purchased in late 1950s or early '60 by the Beaird Company, also of Shreveport, it was known as Beaird-Poulan.
Diagram of a crankcase scavenged valveless 2-stroke engine in operation. Some SI engines are crankcase scavenged and do not use poppet valves. Instead, the crankcase and the part of the cylinder below the piston is used as a pump. The intake port is connected to the crankcase through a reed valve or a rotary disk valve driven by the engine. For ...
In 1944, Claude Poulan was supervising German prisoners cutting pulpwood in East Texas. Poulan used an old truck fender and fashioned it into a curved piece used to guide the chain. The "bow guide" now allowed the chainsaw to be used by a single operator. [citation needed] McCulloch in North America started to produce chainsaws in 1948. The ...
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Diagram of a typical gas turbine jet engine. Air is compressed by the compressor blades as it enters the engine, and it is mixed and burned with fuel in the combustion section. The hot exhaust gases provide forward thrust and turn the turbines which drive the compressor blades. 1. Intake 2. Low pressure compression 3. High pressure compression ...
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The MIM-104 Patriot is a mobile interceptor missile surface-to-air missile (SAM) system, the primary such system used by the United States Army and several allied states. It is manufactured by the U.S. defense contractor Raytheon and derives its name from the radar component of the weapon system.