Principles gasolinediesel fuel systems od1620 lesson 1task 1 d. Make a display of the different types of fuel injection systems. The speed of a diesel engine is controlled by the amount of fuel injected into the cylinders. The fuel system on most diesel engines is composed of three main parts. Flow in fuel injection systems for di diesel engines.
So it needs an additional compression system for the injection system. Direct injection takes the fuel injection concept about as far as it can go, injecting fuel directly into the combustion chambers, past the valves. Mechanically, the diesel engine is similar to the gasoline engine. The injectors spray fuel into the engines intake valves through the intake port. Types of diesel fuel injection systems it still runs. Dieselinjection equipment parts deterioration after.
More common in diesel engines, direct injection is starting to pop up in gasoline engine designs, sometimes called dig for directinjection gasoline. In this injection system, the fuel will be injected into the cylinder by means of compressed air. Diesel fuel types crude oil the term crude oil is used to. When the fuel is not distributed evenly to all cylinders, the engine. Describe the fuel tank, lift pump, injection pump, and enginedriven vacuum pump. Modern injection systems reach very high injection pressures, and utilize sophisticated electronic control methods. This manual has several features which make it easy to use online.
Now, lets discuss more details about these injection systems. Basic diesel engine operation diesel engine force air by the intake valve into the cylinder high compression ratio heats the air enough to ignite the fuel fuel is injected into the cylinder at high pressure the amount of fuel injected suits to the load and controls engine speed. Mpi systems utilize a single or dual fuel pumps to feed fuel injectors mounted in the intake port of the engine. Pdf ci diesel engine fuel injection system researchgate. A single cylinder diesel engine that is equipped with a manual direct injection system is considered for the experimental work. Some industrial diesel engines use multipoint fuel injection mpi similar to that used in most cars. Pdf ci diesel engine fuel injection system, combustion process in direct injection. Emissions such as hc, nox and brake specific fuel consumption were.
Fuel injection systems gasoline ricardo pimenta 1050799 fabio daniel 1050357 what is a fuel injection system fuelinjection isasystemformixingfuelwithairinaninternalcombustionengine. The purpose of the fuel injection system is to deliver fuel into the engine cylinders, while precisely controlling the injection timing, fuel atomization, and other parameters. Understand the different types of diesel fuel systems, how the components function to. The injection technology used in the tgl and tgm is the most sophisticated one. A diesel engine uses a fuel system with a precision injection pump and. For producing the required pressure for atomizing the fuel either air or a mechanical means is used.