What type of high pressure pump is used in common rail fuel systems?
Another means of metering high pressure pump flow is to vary the pump’s displacement volume. One way to do this is to operate only some of the pumping elements in a multi-element high pressure pump. This approach was used in some early Bosch common rail fuel systems employing the CP1 pump.
How does the pressure control valve of the high pressure pump used in common rail diesel fuel systems operates?
Common Rail System Layout A solenoid operated metering valve controls the amount of fuel entering the high pressure pump. The high pressure pump is driven by the engine and delivers fuel at a constant pressure to the rail. A pressure sensor installed in the rail monitors the fuel pressure.
How much PSI does a common rail diesel?
Common rail direct fuel injection is a direct fuel injection system for petrol and diesel engines. On diesel engines, it features a high-pressure (2,000 BAR – 29,000 PSI) fuel rail feeding individual solenoid valves, as opposed to a low-pressure fuel pump feeding unit injectors or pump nozzles.
Is common rail Diesel better?
The main advantages of the common rail direct fuel injection can be summarized in reduction of exhaust and noise emissions, better fuel efficiency and improved overall engine performance. The system consists of a high-pressure pump, injectors, a rail, and an electronic control unit.
What kind of fuel system does Cummins ISX15 have?
High-pressure fuel connector 21. Fuel injector 22. Fuel injector drain check valve (banjo type) 23. Fuel drain from injector 24. Fuel drain manifold 25. Fuel retrofit thermal recirculation valve 26. Fuel pump drain 27. Fuel return to tank.
Which is Cummins common rail system do you use?
Primarily targeted for mid-range and heavy-duty applications, the XPI system is the result of Cummins market leading technology. The XPI provides industry-leading injection pressure and, as a tailored system, delivers optimal engine performance and improved fuel economy to mid-range applications.
Why is the Cummins signature engine called the ISX?
The only reason for the discontinuation of the engine was the EPA passed stricter emissions regulations that made the N14 outdated. The ISX was originally called the “Signature” series due to the revolutionary fuel system known as the “Interact System” The IS in ISX stands for the Interact System and is in use for on-highway applications.
How does the Cummins XPI fuel injection system work?
The XPI provides industry-leading injection pressure and, as a tailored system, delivers optimal engine performance and improved fuel economy to mid-range applications. Industry-leading injection pressure with large pressurized fuel volume in injector for improved multiple injection capability and optimal combustion & fuel economy