The 1503ES-12S5SUC53 solenoid valve manufactured by Woodward is commonly used in diesel engine flameout control systems. This solenoid valve is primarily used to control the fuel supply to achieve the engine flameout function.

Function and Use

Controlling Fuel Supply

When the solenoid valve is energized, it allows fuel to flow to the injection system, allowing normal engine operation.

When the solenoid valve is de-energized, the valve closes the fuel flow path, cutting off the fuel supply and causing the engine to flameout.

Engine Stall Protection

In an emergency or when the control system issues a shutdown signal, the solenoid valve quickly shuts off fuel, ensuring a safe engine shutdown.

Automated Control

Can be used in conjunction with an electronic control unit (ECU) to achieve remote or automated start/stop control.

Prevents Fuel Leakage and Idling

The valve design ensures fuel leakage when closed, effectively preventing idling and fuel waste.

Applications

• Generator diesel engines
• Construction machinery (such as excavators and bulldozers)
• Marine diesel engines
• Diesel vehicles (some construction and commercial vehicles)