f682aff184 Fuel Injection System Components. The primary factor used in determining the amount of fuel required by the engine is the amount (by weight) of air that is being taken in by the engine for use in combustion. (1937). Multipoint fuel injection (also called PFI, port fuel injection) injects fuel into the intake ports just upstream of each cylinder's intake valve, rather than at a central point within an intake manifold. Direct injection. Other engine sensors used in EFI systems include a coolant temperature sensor, a camshaft or crankshaft position sensor (some systems get the position information from the distributor), and an oxygen sensor which is installed in the exhaust system so that it can be used to determine how well the fuel has been combusted, therefore allowing closed loop operation. During that time period, the vast majority of gasoline-fueled automobile and light truck engines did not use fuel injection. Lucas Service Training Centre. This approach required additional sensors to measure the atmospheric pressure and temperature, to ultimately calculate "air mass". Bosch superseded the D-Jetronic system with the K-Jetronic and L-Jetronic systems for 1974, though some cars (such as the Volvo 164) continued using D-Jetronic for the following several years.
Journal of the American Medical Association. Objectives. Toyota. An early use of indirect gasoline injection dates back to 1902, when French aviation engineer Leon Levavasseur installed it on his pioneering Antoinette 8V aircraft powerplant, the first V8 engine of any type ever produced in any quantity.[2]. The Bosch fuel injectors were placed into the bores on the cylinder wall used by the spark plugs in other Mercedes-Benz six-cylinder engines (the spark plugs were relocated to the cylinder head). All share the central task of supplying fuel to the combustion process, but it is a design decision how a particular system is optimized. Purpose of Fuel Injection System.
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