Woodward Fuel Metering Unit (FMU)

The Fuel Metering Unit (FMU) is a critical component of the fuel system in aircraft engines,

ensuring that the engines receive the right amount of fuel at all times.

It regulates the fuel supply by controlling the fuel pump and monitoring various

parameters to maintain the desired fuel-air mixture ratio. 

The FMU consists of a metering valve and a pressure regulator, which work together

to ensure optimal engine performance and fuel efficiency. It is designed to withstand

harsh operating conditions, including extreme temperatures and vibrations,

and is typically located close to the engines to reduce the risk of pressure loss or contamination.

Fuel Metering Units (FMU) deliver state-of-the-art fuel control functionality with

significantly higher reliability and lower lifecycle costs versus the competition.

Features & Functionality

We combine decades of industry leading fuel metering experience with in-house

servo control and innovative technologies to provide elegant, cost-effective solutions.

Whether a new application or a transparent, competitive displacement,

our dedicated onsite engineering support ensures a flawless Entry Into Service (EIS).

Key Product Variants Include

• Positive displacement and dynamic pump metering capabilities.

• Open loop, proportional and integrating metering options.

• High dynamics capability for robust disturbance rejection under all conditions.

Key Features

• Decades of industry leading market share and pedigree from millions of flight hours reduce program risks and increase reliability.

• Dedicated analysis team to facilitate system level tradeoffs among critical mission requirements such as metering accuracy versus recurring cost.

• Long history of successful, transparent competitive displacements offers tremendous cost savings over the remaining product lifecycle.

• Scalable valve platforms reduce risk, cut costs and boost reliability.