Diesel Injector Fuel Injector 0445120209 Bosch for Cummins Engine
products detail
Used in Vehicles / Engines
| Product Code | 0445120209 |
| Engine Model | / |
| Application | Gaz Deutz Yamz Engine |
| MOQ | 6 pcs / Negotiated |
| Packaging | White Box Packaging or Customer's Requirement |
| Warranty | 6 months |
| Lead time | 7-15 working days after confirm order |
| Payment | T/T, PAYPAL, as your preference |
| Delivery Method | DHL, TNT, UPS, FedEx, EMS or Requested |
The injection pressure of the injector decreases
- The reduction of fuel injection pressure of the fuel injector will lead to poor atomization of the fuel, the reduction of the range or even the inability to completely pass through the combustion chamber, affecting the mixing of fuel and compressed air, resulting in incomplete combustion of diesel oil, and the needle valve of the fuel injector is prone to carbon deposits. The fuel consumption of the diesel engine increases, it is difficult to start, and black smoke is emitted during operation. The pressure drop of the injector is mainly caused by the pressure drop of the pressure regulating spring or the loosening of the pressure regulating screw. The pressure of the pressure regulating spring that must be overcome to open the needle valve of the fuel injector is the fuel injection pressure. During the working process of the diesel engine, the pressure regulating spring is prone to plastic deformation due to long-term high-frequency beating, and impurities in the diesel oil will also aggravate the wear of the spring. , leading to a decline in the elastic deformation resistance of the pressure regulating spring, which will also cause a decrease in the fuel injection pressure of the injector.
The pre-tightening force of the pressure regulating spring of the fuel injector is reduced, which will easily make the needle valve of the fuel injector stop at the open position in the needle valve body, causing the mixed gas to flow back into the fuel injection chamber for combustion, causing the needle valve and needle valve body to be ablated and annealed. Reduced injector life. In this regard, the fuel injection pressure of the injector can be adjusted by replacing the pressure regulating spring or adjusting the pressure regulating screw. The inspection and adjustment of the fuel injection pressure of the fuel injector should be carried out on the test bench. Press the handle to make the fuel injector spray oil, press the handle at a speed of 60 times/min, and observe the fuel injection pressure. For injectors that use a pressure regulating screw to adjust the fuel injection pressure, the pressure regulating screw can be controlled to test until the fuel injection pressure meets the requirements of the specification.
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