Behind the Precision: ELFI Valve from MAN B&W ME Engine
One of the most critical components in electronically controlled marine engines is the ELFI Valve (Electronic Fuel Injection Valve)—and here’s a close-up look at it in action!
This valve plays a crucial role in delivering precise hydraulic signals to the fuel booster units, controlling fuel injection timing and quantity with exceptional accuracy.
Major components:
1. Hydraulic Actuator
It receives hydraulic oil pressure to actuate the valve mechanism.
2. Position Feedback Sensor (LVDT / Inductive sensor)
This sensor sends the spool position feedback to the engine control system.
3. Solenoid Coil –
The black rectangular component with wiring and a label. It energizes to shift the valve spool and control hydraulic flow.
These components work together to ensure efficient combustion, fuel economy, and emission control—making it a cornerstone of modern marine engine technology.
As a Marine electro-technical supplier, we offer professional service on that.





