different types of fuels used in ic engines

Multipoint Fuel Injection System (MPFI) : This ECU-processes the data and operates injectors and other devices to have maximum power, with best economy, and low emissions. Sensors feed this data to Electronic Control Unit (ECU)-which is basically a computer. Max power and best economy are attained by using electronics and computers in automobiles.ĮFI systems was various sensors to sense various parameters like temperature, pressure of gases, position of throttle valve, air flow rate etc. About 30-40% of cost of vehicles is for electronic items. Electronic Fuel Injection (EFI) System :Įlectronics is introduced in automobiles in 1965. Generally Cummins and multi-cylinder engines use this system. Thus high pressure fuel is collected in common rail and from here through the metering devices required quantity of fuel goes to injectors/cylinders. Low pressure pump, pumps the fuel to high pressure pump, which pumps the fuel to high pressure pump, which pumps the fuel to common rail. In this case fuel flows from storage tank to low pressure pump through filters. This metering and pressure pump pumps the fuels to distributor unit which distributes and sends required quantity of fuel to each injectors/each cylinders. These are used in large slow speed engines.įuel will flow from storage tank to low pressure pump through filters, then to metering and pressure pumps.

These separate metering and pressure pumps will pump the fuel to individual injectors which are provided in the cylinder heads.

This low pressure pump pumps the fuel to 4 separate metering and pressure pumps. In this case diesel fuel is directly injected by fuel pump (Bosch Pump).įurther these are of 3 types of solid injection systems:Īs shown fuel will flow from the storage tank to filters to low pressure pumps.

Different types of fuels used in ic engines