How does a marine fuel injector work?
A fuel injector can achieve high pressure up to 500 bar by using spring loaded valve. High pressure fuel from the fuel pump then acts on the underside of the fuel injector body. This pressure when reach a certain point, it lift the needle valve against the spring tension; injecting atomized fuel oil through nozzle.
What is marine fuel injector?
The function of the fuel injection system is to provide the right amount of fuel at the right moment and in a suitable condition for the combustion process. There must therefore be some form of measured fuel supply, a means of timing the delivery and the atomisation of the fuel.
How much does a fuel injection kit cost?
The system uses eight injectors and includes ignition timing control. A color touchscreen handheld unit is included that provides on-board diagnostics. Works with return or non-return fuel feeds and most common ignition systems. Price: $2,300 to $3,600 (approx.)
What is an EFI kit?
A fuel injection conversion replaces a carburetor with a fuel injection system. There are fuel injection conversion kits that make the entire process very easy. Older cars have carburetors, but electronic fuel injection (EFI) offers greater fuel efficiency and improved performance.
Why do you need nozzle cooling?
Oil and Water Nozzle Cooling The nozzles, with the cooling medium being oil or water, have to be cooled because of the high temperatures they are exposed to. The coolant is circulated through passages in the injector assembly, being directed around the injector nozzle.
How does a fuel injection work?
A modern fuel injection system works by atomising the fuel at high pressure, mixing it with clean air as it passes the inlet manifold, before entering the combustion chamber of each cylinder. The key element of the electronic modern fuel injection system is the word “electronic.”
How hot does a diesel piston get?
Piston surfaces in contact with oil have a maximum temperature limit of about 250-270°C before oil coking problems occur. The highest temperature of the piston where oil is present is typically the top land/groove region. Also, high thermal stress in the first ring groove can accelerate mechanical wear.
Why carburetor is not used in diesel engine?
Diesel engines are also IC engines. However, in Diesel engines, there is no carburetor. Only air is compressed to much higher pressures and the fuel is injected into the compressed air. As the fuel and air are mixed, the fuel evaporates and ignites (hence called compression ignition).
How much more horsepower does fuel injection add?
about 10 extra horsepower
When looking at pure horsepower, the fuel injection system only delivers about 10 extra horsepower at peak. It is the ability to constantly be tuning the fuel and air intake for each cylinder that benefits the performance.