bränsleinsprutningar

Bränsleinsprutning is a fuel delivery system used in internal combustion engines. Instead of a carburetor mixing fuel and air before it enters the cylinder, a bränsleinsprutnings system injects fuel directly into the intake manifold or combustion chamber. This system typically involves an electronic control unit (ECU) that monitors various engine parameters and precisely controls the amount of fuel injected.

The ECU receives data from sensors such as the throttle position sensor, engine speed sensor, and oxygen sensor. Based on this information, the ECU determines the optimal fuel-air mixture for different operating conditions. This precise control leads to several advantages over carburetors. Fuel efficiency is generally improved because the engine receives only the necessary amount of fuel. Emissions are also reduced due to more complete combustion.

Common types of bränsleinsprutning include single-point injection (SPI), where a single injector is located in the intake manifold, and multi-point injection (MPI), where each cylinder has its own injector. More advanced systems, like direct injection (DI), inject fuel directly into the combustion chamber, offering even greater precision and potential for performance gains. The development of bränsleinsprutning has been a significant step in the evolution of engine technology, contributing to more powerful, efficient, and cleaner vehicles.