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Reciprocating Engines
Published in Neil Petchers, Combined Heating, Cooling & Power Handbook: Technologies & Applications, 2020
Although a carburetor is usually the simplest and least expensive device for fuel metering in a spark-ignited engine, increasingly, the trend has been toward fuel injection systems. The control precision achieved with fuel injection is a key element in today’s high-performance, low-emission engines. Fuel is typically injected before or after the air charger into the intake manifold or intake valve ports. There are several different types of injection systems, including mechanical and electronic designs that may include individual cylinder injectors or a single fuel injector.
Engine systems
Published in Tom Denton, Advanced Automotive Fault Diagnosis, 2020
The major advantage, therefore, of a fuel injection system is accurate control of the fuel quantity injected into the engine. The basic principle of fuel injection is that if petrol is supplied to an injector (electrically controlled valve), at a constant differential pressure, then the amount of fuel injected will be directly proportional to the injector open time.
Engines
Published in Tom Denton, Alternative Fuel Vehicles, 2018
The main advantage of a petrol/gasoline fuel injection system is accurate control of the fuel quantity injected into the engine. The basic principle of fuel injection is that if petrol is supplied to an injector (electrically controlled valve), at a constant differential pressure, then the amount of fuel injected will be directly proportional to the injector open time.
The effect of high-reactivity fuel injection parameters on combustion features and exhaust emission characteristics in a natural gas–diesel RCCI engine at part load condition
Published in International Journal of Green Energy, 2018
H. Khatamnejad, Sh. Khalilarya, S. Jafarmadar, M. Mirsalim
In recent years, different types of fuel injection system from low pressure, e.g., gasoline direct injection, to high pressure, e.g., common rail injection (CRI) have become widely available in the market for the modern engine. In this section, four different injection pressures from 300 to 2400 bar have been considered to investigate its effect on mixture formation within the combustion chamber and engine performance parameters and emissions. As there are different injection pressures, the injection duration has been defined for various cases with SOI timing at 30 CA bTDC, which are shown in Table 3.
Exploration of carbon deposit on spark plug of stratified charged gasoline direct injection engine
Published in International Journal of Ambient Energy, 2020
B. Prem Anand, S. Prasanna Raj Yadav, S. R. Dhanadevi, P. Kanimozhi, T. Pavadharani
The overall experimental structure consists of GDI engine, GDI system and Eddy Current Dynamometer as power measurement device as shown in Figure 1. The fuel injection system is an integral part of test engine and mainly comprises three parts: fuel supply system, electronic control unit (ECU) and injector assembly. The fuel supply system provides a constant pressure resource for the injector. The ECU controls the injection quantity and injection timing of the injector by special programmes according to the calculation and analysis of analogue and digital inputs of various sensors.