Diesel Injector Fuel Injector 0445120103 Bosch for Dodge RAM 2500 / RAM 3500 5.9L Cummins Turbo Diesel I6 engine
products detail
| Produce Name | 0445120103 |
| Engine Model | / 5.9L Cummins Turbo Diesel I6 engine |
| Application | Dodge RAM 2500 / RAM 3500 |
| MOQ | 6 pcs / Negotiated |
| Packaging | White Box Packaging or Customer's Requirement |
| Lead time | 7-15 working days after confirm order |
| Payment | T/T, PAYPAL, your preference |
Modelling the High-speed Injector for Diesel ICE （part 2）
The assumed priority of the requirements of the fuel injection law in systems employs variable pressure, including in the Common Rail systems [1,2]. Electrohydraulic injectors (EHI) in these systems are intended for implementing a multicycle injection with the number of cycles and duty ratio being limited by the speed of the injector. Partial limitation of the operation speed is due to the injector flexibility in terms of its operating pressures. The consequence of insufficient operating speed is deviation of the real injection conditions from the requirement [3-5].
2 Constant pressure high-speed injection nozzle
The electrohydraulic injectors include
- an actuator in the form of a needle with a multiplier representing a hydraulic cylinder with the working chamber diameter exceeding the needle diameter and constituting a control chamber, and the needle spring representing a sealing device in the absence of the operating pressure;
- a pressure control device in the control chamber of the multiplier in the form of a slider or a valve with a solenoid drive.
The valve 4 is small-sized, and therefore it is a high-speed valve since the main flow of the injected fuel does not pass through it. On the other side, the movement of the needle 7 is driven by the hydraulic force of the valve. The valve is located on the discharge side, which facilitates its layout, preserves the possibility of cooling, reduces the requirements for its hydraulic tightness and reduces the power necessary for control. The end solenoid 1 with the disk armature 3 opens the ball valve 4 by overcoming the spring 2. The pressure from the top of the multiplier decreases, and the needle opens the passage to the injector orifices 8. After the solenoid 1 is deenergized and the valve resetting, the pressure to the right of the multiplier is restored through the atomizing jet (Figure. 1)
