Schematic diagram of the fuel injection system «K-Jetronic»:
1 - fuel tank; 2 - fuel pump; 3 - fuel accumulator; 4 - fuel filter; 5 - dispenser-distributor of fuel; 6 - supply pressure regulator; 7 - control pressure regulator; 8 - air flow meter; 9 - pressure disk of the air flow meter; 10 - throttle valve; 11 - adjusting screw for the amount of idle mixture; 12 - valve for additional air supply; 13 - starting nozzle; 14 - thermal time relay; 15 - injection nozzles.
fuel injection system «K-Jetronic» It is a mechanical continuous fuel injection system. The injectors constantly spray fuel into the intake manifold in front of the intake valves. Therefore, the change in fuel consumption is achieved not by changing the duration of the opening of the nozzles, but by regulating the amount of fuel supplied to the nozzles.
The amount of air supplied is constantly measured by the air flow meter, and the amount of fuel injected is strictly proportional to the amount of air supplied (except for a number of engine operating modes such as starting a cold engine, running under full load, etc.) and regulated by a fuel dispenser.