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Denso Suction Control Valve 294200-4850
FUNCTION
1. Precise Control of Fuel Intake: Installed on the inlet side of the Denso HP3 high-pressure fuel pump, it utilizes an electromagnetic valve to regulate valve opening, thereby precisely controlling the flow of fuel entering the high-pressure pump from the low-pressure fuel circuit.
2. Regulation of Common Rail Fuel Pressure: Acting in accordance with commands from the engine ECU, it adjusts the pump's fuel output in real time to maintain the fuel pressure within the high-pressure common rail within an optimal range, ensuring that the injectors in each cylinder receive a stable supply of high-pressure fuel.
3. Optimization of Engine Combustion: By enabling precise fuel metering, it facilitates highly efficient combustion across various engine operating conditions, thereby boosting power output, reducing fuel consumption, and minimizing black smoke and exhaust emissions.
4. Protection of the High-Pressure Fuel System: It prevents overloading of the high-pressure pump and guards against abnormal pressure fluctuations, thereby extending the service life of critical components such as the high-pressure pump, common rail, and fuel injectors.
Working Principle
The SCV acts as the "throttle valve" for the high-pressure fuel pump. Based on signals such as engine speed, load, and temperature, the ECU issues Pulse Width Modulation (PWM) commands to actuate the solenoid within the valve, thereby adjusting the valve's opening. This regulates the volume of fuel entering the pump chamber, ultimately ensuring the precise and stable maintenance of common rail pressure.
Performance Advantages
| Performance Dimension | Specific Advantage Description | Practical Benefits |
|---|---|---|
| Pressure Control Precision | High-precision electromagnetic control that rapidly and accurately regulates fuel flow into the high-pressure pump according to ECU commands, maintaining stable common rail pressure | Ensures optimal injection pressure (160-200 MPa) under various conditions, resulting in more complete combustion and strong power output |
| Response Speed | Sensitive electromagnetic response that quickly adapts to changes in engine speed and load | Faster acceleration response, smoother idling, and avoidance of power loss or shaking caused by pressure fluctuations |
| Durability & Reliability | Original factory precision machining and high-strength materials, resistant to high temperature and fuel corrosion, with stable quality | Long service life, suitable for long-term high-load transport, and reduces early damage to the high-pressure pump and injectors |
| Fuel Economy | Precise fuel metering that avoids unnecessary circulation and waste | Significantly reduces fuel consumption, improves fuel utilization, and lowers operating costs |
DETAILS
| DESCRIPTION | Suction Control Valve | PART NUMBER | 294200-4850 |
| WEIGHT |
0.05KG |
VOLUME |
13 cm × 8.9 cm × 5.6 cm |
| TRUCK MOLDE | SINOTRUK | QUALITY | Copy,High Copy, OEM,Original |
| MOQ | 1 | WARRANTY | 1 year |
| PAYMENT | TT/WESTEN UNION | SHIPMENT | by air/sea/railway |
| BRAND | SINOSACHS | PLACE OF ORIGIN | JINAN CITY,CHINA |
| STOCK | IN STOCK | APPLICABLE SITE | ENGINE |
| PACKAGE | Carton/Woodenbox | PORT OF LANDING | Qingdao Port,China |
Daily Maintenance Recommendations
Inspection Interval: Inspect the fuel system every 10,000 kilometers or every 3 months, paying particular attention to engine starting, idle stability, and throttle response.
Symptom Monitoring:
Observe the engine for signs of difficulty starting, idle vibration, sluggish acceleration, emission of black smoke, or an abnormal increase in fuel consumption.
Use a diagnostic scanner to retrieve any fault codes.
Check the area around the high-pressure fuel pump for fuel leaks or abnormal noises.
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