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Video Petrol Injection 1
Video Petrol Injection 2
Video Petrol Injection 3
Video Petrol Injection 4
Video Petrol Injection 5
Video B-Dir. Combustion
Video Dir. Petrol Injection 1
Video Dir. Petrol Injection 2
Video Dir. Petrol Injection 3
Video Dir. Petrol Injection 4
Video Dir. Petrol Injection 5
Video Petrol Injection Kugelf.
Video Homog. Working
Video Stratified-charge Oper.
Video Fuel Distrib.
Video Induction System
Video Petrol Injection Signal 1
Video Petrol Injection Signal 2
Video Idle Speed Device
Video Mass Air Flow Sensor 1
Video Mass Air Flow Sensor 2
Video Mass Air Flow Sensor 3
Video System Press. Reg. 1
Video System Press. Reg. 2
Video Injection Valve
Video Ind. Pulse Generator
Video Single Point Injection 1
Video Single Point Injection 2
Video Single Point Injection 3
Video Single Point Injection 4
Video Unregistrated Air
Video Lambda Sensor 1
Video Lambda Sensor 2
Video Lambda Sensor 3
Video Lambda Sensor 4
Video Lambda Sensor 5
Video Thermo Time Switch
Video Side-channel Pump
Video Peripheral Pump

Video First Fuel Pump
Video Petrol Injection Pump
Video D-Jetronic (MPI)
Video K-jetronic
Video KE-jetronic
Video KE-Jetroncic - Test, Diagn.
Video L-jetronic
Video LE-jetronic
Video LE-motronic
Video LH-jetronic
Video Vol. Air Flow Sensor
Video Idle Speed Device
Video Aux. Air Valve
Video Thermo Time Switch
Video Roller Vane Pump

Video Petrol injection 1
Video Petrol injection 2


          A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

System Pressure Regulator




Please click on the picture!






Function

The system pressure regulator has become smaller and smaller with the progressive development of the fuel injection systems. Recently it may also be integrated in the fuel filter. Without connection on top and in different shape it can also be found in the central injection. Its construction is so simple and effective that it seems indispensable everywhere.

How it works

It has three connections. The system pressure originates to the left visually speaking. It should be regulated. If the pressure is too high, it presses the spring-loaded diaphragm upwards and the runback below opens. To ensure the sealing a sphere is located between the locking plate and the diaphragm plate.The multipoint injection features an upper connection which is connected with the inlet manifold. This way the pressure difference is always constant between inlet manifold and distributor pipe. The injection amount should absolutely only dependent on the injection pulse timing.
Older multi-position fuel injection systems (not KE-Jetronic!) have between 2,5 and 3,5 bar absolutely measured system pressure, newer ones can reach just about 4 bar.




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Translator: Don Leslie - Email: lesdon@t-online.de

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