Injectors — General Information (Skoda Octavia 1U)

In an engine with three intake valves, which necessarily lie in different planes, the shape and position of the jet of injected fuel acquire special significance, since they affect both the amount of hydrocarbons in the exhaust gases and the engine's throttle response and power. The most advantageous is a conical jet shape with an oval cross-section, which is obtained by overlapping two conical jets with a circular cross-section, forming a precisely specified angle. To achieve the required spatial shape of the jet, the manufacturer uses injectors with two holes, locked against rotation. Fuel pressure is 0.4 MPa. Consequently, injection is multi-point and gradual.