Diesel Engine 1 Diesel Engine 2 Petrol/Diesel Engine Save Energy Inventor Rudolf Diesel Crosshead Engine Diesel Engine (truck) Work at Truck Engine Combustion Engine Compression Ignition Direct Injection Side Comb. Chamber Diesel Fuel Not running Test diagnostic Injection Nozzle Tests Pump Injectors Particulate Filter Two-stroke Engine Marine engines 1 Marine engines 2 V-10 Diesel Engine Internal Mixt. Form. Mixture Preparation Supply Pump Diesel injection 2012 Common Rail 1 Common Rail 2 Common Rail 3 Common Rail 4 Common Rail 5 Common Rail 6 Common Rail 7 Common Rail 8 Common Rail 9 Common Rail 10 Fuel supply 2 Fuel supply 3 Repair 1 Repair 2 Repair 3 Throttle Pintle Nozzle Hole Type Nozzle Glowing System 1 Glowing System 2 Glowing System 3 Glowing Plug Sensor Hole Type Nozzle Injection Nozzle Tests Injection Pump Test Pump Injectors 1 Pump Injectors 2 Pump Injectors 3 Diesel Fuel Filter 1 Diesel Fuel Filter 2 Reverse Running Fuel Cooling In-line Inj. Pump Injection Pump In-line Pump (classic) In-line Pump (P-type) In-line Pump (M-type) In-line Pump 4 In-line Pump 5 In-line Pump 6 In-line Pump 7 Centrifugal Governor Fuel Piston Pump Electr. Inline Pump Distr. Type Pump 1 Distr. Type Pump 2 Axial Distr. Pump 1 Axial Distr. Pump 2 Axial Distr. Pump 3 Axial Distr. Pump 4 Axial Distr. Pump 5 Radial Distr. Pump 1 Radial Distr. Pump 2 Radial Distr. Pump 3 Electr. Diesel Control Centrifugal Governor Press. Red. Valve Blocking-vane Pump Fuel Filter - Hand Pump Diesel Fuel Fuel Preheating Diesel Processes 1 Diesel Processes 2 Diesel Processes 3 Diesel Processes 4 Diesel Injection 1 Diesel Injection 2 In-line Injection Pump Distributor Pump 1 Distributor Pump 2
The most important reason for a series connection is the voltage division. By far, not everything in a vehicle is operated with 12 volts. Therefore, the possibility must exist, to draw a fixed- or even a variable tension from the on-board voltage. This possibility is shown in figure 2, in the form of a dimmer for the dasboard lighting.
In a series connection, the current strength does not change, because the electrons must flow through both resistances. In the above diagram this would be the resistance above and the light-emitting diode below. The current flow through the connected volt-meter (parallei connection) should be negligibly small, the same goes for the voltage drop on the ammeter. At the same time, the tensions and the resistances are added together. One could speak of a tension- or resistance division. The resistance in the above circuit diagram, could be described as a series resistor for the LED below. It takes up 10,5 volts, so that there is only a tension drop of 1,5 volts on the LED. The resistance is thus calculated, that the total current does not exceed 20 mA. This is because 20 mA is the maximum load for LEDs. Thus, the series resistor protects the LED. Before the time of the Data-Bus, in the motor branch, wiring was saved with the help of the voltage division. Thus, for a stepping-switch, resistors were connected in series, so that, depending on the switch position, there was always a different voltage on one particular circuit. Naturally, this had also to be recognised by the evaluation electronics.
