Multi Point Fuel Injection System - 4268 Words

MULTI –POINT FUEL INJECTION [pic] Contents Chapters Page No. Introduction 3 Objectives 5 History and Development 6 Supersession of carburetor 10 Basic function 13 Fundamentals of fuel injection 15 Various injection system 18 Conclusion 22 Reference 23 Introduction I was commuting with my friends back from college one evening when one of them asked me: What is an MPFI Engine? You must have seen cars with specifications which mention words like MPFI and CRDI or CRDE. To an automotive engineer or enthusiast, it means something, but for a common man, it may not make much sense. MPFI means –†¦show more content†¦Because of its greater immunity to wildly changing g-forces on the engine, the concept was adapted for use in gasoline-powered aircraft during World War II, and direct injection was employed in some notable designs like the Junkers Jumo 210, the Daimler-Benz DB 601, the BMW 801, the Shvetsov ASh-82FN (M-82FN) and later versions of the Wright R-3350 used in the B-29 Superfortress. Mechanical The term Mechanical when applied to fuel injection is used to indicate that metering functions of the fuel injection (how the correct amount of fuel for any given situation is determined and delivered) is not achieved electronically but rather through mechanical means alone. In the 1940s, hot rodder Stuart Hilborn offered mechanical injection for racers, salt cars, and midgets. One of the first commercial gasoline injection systems was a mechanical system developed by Bosch and introduced in 1952 on the Goliath GP700 and Gutbrod Superior 600. This was basically a high pressure diesel direct-injection pump with an intake throttle valve set up. This system used a normal gasoline fuel pump, to provide fuel to a mechanically driven injection pump, which had separate plungers per injector to deliver a very high injection pressure directly into the combustion chamber. [pic] [pic] Goliath GP700 Carrera 3.0 Another mechanical system, also by Bosch, but injecting the fuel into the port above the intake valve was later usedShow MoreRelatedIntroduction Of Petrol Injection System1585 Words   |  7 PagesIntroduction of petrol injection The Fuel injection is a system for filling fuel into an internal combustion engine (cylinder). It has become the primary fuel delivery system used in automotive engines, it replaced by carburettors in 1980s. A variety of injection systems have existed since the earliest usage of the internal combustion engine. There are two type of injection system which used in petrol engine 1st multipoint injection system and 2nd is single point injection system Herbert Akroyd StuartRead MoreThe Fuel Of Fuel Injection3417 Words   |  14 PagesFUEL INJECTION A fuel injector is a device or technology that introduces the fuel into the combustion unit of an internal combustion engine. It is an alternative method to carburetor. 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