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A unit injector (UI) is a high-pressure integrated direct fuel injection system for diesel engines, combining the injector nozzle and the injection pump in a single component. The plunger pump used is usually driven by a shared camshaft. In a unit injector, the device is typically lubricated and cooled by the fuel itself.
Maschinenfabrik Fahr (Fahr Machine Factory) was established by Johann Georg Fahr in Gottmadingen in 1870. One of its most important products was the self-binder, manufactured in 1911, while the first tractor, the Fahr F22, was built in 1938 from an idea of Wilfred Fahr and Bernhard Flerlage, and had a 22 hp (16 kW) Deutz F2M414 twin-cylinder diesel engine.
The injector is located in the combustion chamber, inlet manifold or – less commonly – the throttle body. Fuel injectors which also control the metering are called injection valves , while injectors that perform all three functions are called unit injectors .
Deutz also sells a line of economic liquid-cooled engines. In 2007, the "Deutz Power Systems" division was sold to 3i, and Deutz AG now concentrates on producing and selling compact engines under the Deutz brand only. They focus on manufacturing engines only for the customer, without competing for the entire piece of finished machinery.
Deutz-Allis was a company formed when Deutz-Fahr of Germany, part of KHD, purchased the agricultural assets of the Allis-Chalmers corporation in 1985. [ 1 ] Deutz-Allis was eventually sold to the Allis-Gleaner Corporation, or AGCO ), in 1990. [ 2 ]
Deutz AG, a diesel-engine manufacturer based in Cologne, Germany Deutz-Allis, former subsidiary in North America. Deutz-Fahr, a brand of tractors and other farm equipment established in 1968. Deutz Power Systems, former subsidiary (1985–2007) today part of Caterpillar Energy Solutions.
Injection pump for a 12-cylinder diesel engine. An injection pump is the device that pumps fuel into the cylinders of a diesel engine.Traditionally, the injection pump was driven indirectly from the crankshaft by gears, chains or a toothed belt (often the timing belt) that also drives the camshaft.
This simplifies engine (piston crown, head, valves, injector, prechamber, etc.) design and allows the use of less tightly toleranced designs which are simpler to manufacture and more reliable. Direct injection , by contrast, uses slow-moving air and fast-moving fuel; both the design and manufacture of the injectors is more difficult.