Genuine Quality Fuel Injector Parts Solenoid Valve A0000900069 Solenoid Control Valve Auto Parts and Accessories

SCV valve usually refers to the suction control valve, and its functions mainly include the following aspects:

Precisely control the fuel flow: According to the engine working conditions, such as idling, acceleration, climbing, etc., under the control of the ECU, the SCV valve accurately adjusts the amount of fuel entering the diesel fuel pump. For example, at idle, the engine requires less fuel, and the SCV valve will reduce the opening to reduce the fuel entering the fuel pump; under acceleration or high load conditions, the SCV valve will increase the opening to allow more fuel to enter the fuel pump to meet the engine's power requirements.

Stabilize the common rail pressure: By controlling the fuel flow entering the fuel pump, the SCV valve indirectly adjusts the fuel pressure in the common rail to keep it at a stable level that meets the engine's working requirements. Stable common rail pressure is essential to ensure the normal operation of the injector, achieve accurate fuel injection amount and injection time, and help improve the engine's combustion efficiency and power output stability. If the common rail pressure is too high or too low, it will affect the engine's performance, such as causing power loss, increased fuel consumption, and excessive emissions.

Reduce engine load and emissions: The SCV valve only allows the amount of fuel required to maintain the common rail pressure to enter the fuel supply pump, avoiding unnecessary fuel pumping, thereby reducing the workload of the fuel supply pump and reducing the overall operating load of the engine. This not only helps to improve the efficiency of the engine, but also reduces fuel consumption and exhaust emissions, meeting the requirements of environmental protection and energy saving.

Protect engine-related components: Appropriate fuel pressure and flow control can ensure that various components in the fuel system, such as injectors, high-pressure fuel pumps, etc., operate under normal working conditions, avoid damage to these components due to excessive or low fuel pressure, unstable flow, etc., and extend the service life of the engine and its fuel system.

In addition, in the pneumatic transmission system, the SCV one-way sequence valve can rely on the pressure in the pneumatic system to control the sequential action of the pneumatic actuator.