1. Product Introduction
The Denso HP4 pump delivery valve is another key component in the high-pressure fuel system used in diesel engines, specifically in the HP4 series of fuel pumps produced by Denso. Similar to the HP3 series, the HP4 delivery valve plays a critical role in controlling the flow and pressure of fuel delivered to the injectors. Here’s a breakdown of its function:
Main Functions:
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Fuel Delivery Control: The delivery valve regulates the precise amount of fuel that is delivered to the injectors at the required high pressure. This is essential for the efficient combustion of fuel within the engine and to optimize engine performance.
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Pressure Regulation: It ensures that the fuel pressure within the fuel injection system remains stable and at the correct level, preventing over-pressurization or under-pressurization that could affect the injector’s performance.
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Backflow Prevention: Just like other fuel delivery valves, the HP4 valve prevents any backflow of fuel from the injector back into the pump, helping maintain system integrity and pressure during the injection process.
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Precision in Injection Timing: By working in conjunction with the fuel pump, the delivery valve helps ensure the correct timing of fuel injections, which is crucial for the optimal combustion process in modern diesel engines.
Applications:
The Denso HP4 pump and delivery valve are typically used in modern diesel engines, including those found in heavy-duty vehicles, trucks, and some high-performance diesel cars. These systems are designed for precise control of fuel injection in order to meet stringent emissions regulations while maximizing engine efficiency.
2. Product Model List
| No. | Model |
|---|---|
| 1 | 294009-0370 |
| 2 | 294009-0540 |
| 3 | 294009-0940 |
| 4 | 294090-0940 |
| 5 | 294090-1870 |
