moottoriruiskut

Moottoriruiskut, also known as fuel injection systems, are a type of fuel delivery system used in internal combustion engines. They replace traditional carburetors by precisely delivering fuel directly into the engine's intake manifold or combustion chamber. This precise metering of fuel allows for more efficient combustion, leading to improved fuel economy and reduced emissions compared to carbureted engines.

The system typically consists of a fuel pump, fuel injectors, sensors, and an electronic control unit (ECU). The fuel pump supplies pressurized fuel to the injectors. The sensors monitor various engine parameters such as engine speed, throttle position, air intake temperature, and oxygen levels in the exhaust. The ECU processes this sensor data and calculates the optimal amount of fuel to inject at any given time. The fuel injectors, which are electronically controlled valves, then spray the precise amount of fuel into the engine.

There are several types of moottoriruiskut systems, including single-point injection (SPI) and multi-point injection (MPI). In SPI, a single injector is located in the intake manifold, spraying fuel for all cylinders. MPI systems use one injector per cylinder, providing more accurate fuel distribution and better performance. Direct injection (DI) systems further enhance efficiency by injecting fuel directly into the combustion chamber. Moottoriruiskut systems have become standard in modern gasoline and diesel engines due to their significant advantages in performance, fuel efficiency, and emissions control.