Woodward’s actuator platform provides the aircraft industry with a very high reliability at a low cost.

Innovations in design arrangement, materials, surface finishes and sensor integration

provide excellent feature density at a low weight.

Features & Functionality

Woodward’s unique design is both scalable and modular, so it can be quickly applied

to compressor vane, bleed air, air valve and oil applications.

Further system level savings can be achieved by higher-LRU integration and analysis,

leading to integrated servo-actuator solutions and open loop proportional designs.

Regardless of the configuration, let our leak-tight performance provide you 

with years of worry-free and on-demand service within the toughest environments.

Key Product Variants Include

• Wide variety of servo, sensor and open loop integration features for

a varying degree of performance-to-cost requirements.

• Reuse of scalable platforms to reduce risk, cut costs and boost reliability.

• Proven field experience beyond 300.000 hours MTBF.

Key Features

• Leverage of decades of reliable pedigree in fueldraulic actuators,

electro-mechanical actuators, air valves, specialty valves, servo controls and position sensors.

• Unique ability to determine optimum architectures and actuator placement based on customer-driven

requirements.

• Systems level performance and accuracy stacks that include sensor effects over life and signal

demodulation errors.

• Leverage of standard designs to greatly minimize non-recurring development and recurring costs.

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.

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.

Woodward’s fuel nozzle design and manufacturing solutions enable customers

to meet state-of-the-art emissions performance, operability and efficiency.

Woodward designs range from high performance air blast and pressure

atomizing tips to multi-circuit direct injection designs.

Features & Functionality

By incorporating innovative valve designs and fuel control solutions,

Woodward nozzles can be optimized into combustion systems that offer

total weight reductions and significant improvements in system value.

As a manufacturer of fuel nozzles, Woodward brings value to a wide range

of business models from “build to print” to turn-key design solutions 

to meet the most demanding customer requirements.

Woodward provides the most thermally efficient and cost-effective fuel pressurization

solutions by integrating an assortment of proven technologies into an optimized pumping solution.

Features & Functionality

Let our analysis team show you proprietary tools that have enabled the world’s

OEMs to optimize their fuel systems across a variety of difficult-to-measure factors,

including lifecycle costs, horsepower draw, reliability and thermal efficiency.

Woodward offers both standalone and integrated pumping solutions,

that when used together, provide the most reliable, efficient and low-cost solution.

Key Product Variants Include

• Gear, Vane, Centrifugal, Regenerative, Ejector and multiple pump capabilities.

• Leaded bronze and lead-free bearings.

• Facilized for full narrowbody run rates.

Key Product Variants Include

• Gear, Vane, Centrifugal, Regenerative, Ejector and multiple pump capabilities.

• Leaded bronze and lead-free bearings.

• Facilized for full narrowbody run rates.

Key Features

• Innovative single, dual and variable pump schemes provide the ultimate 

ability to fine tune system level performance-to-cost metrics.

• Proven, tested and scalable design tools for world-class, prime reliable

pumping elements including gears, vanes, liquid-rings, regen wheels,

impellers, inducers and ejectors.

• Significant cost, weight and program execution efficient when integrated with filters,

heat exchangers, sensors, PMAs and metering controls.

Woodward’s broad range of single and two-stage servovalve platform technology

leads the industry in performance capability at a low cost.

Features & Functionality

Woodward’s broad range of single and two-stage servovalve platform technology

leads the industry in performance capability at a low cost.  We combine millions

of successful flight hours in field proven elements with enhanced robustness

design features to provide the highest performance to cost ratio over the competition.

Our EHSVs are available in jet pipe and nozzle flapper configurations for the aerospace, industrial and

medical industries.

Key Product Variants Include

• Single and dual stage nozzle flappers, jet pipers and direct drive configurations with

flow rates ranging from 0.25 to 100 gallons-per-minute in standard production packages.

• Up to 5500 psi and beyond.

Key Features

• Proven design elements to meet extreme environments such as 100G continuous operation.

• Reliable, accurate, and cost effective flow and pressure control.

• Long history of successful, transparent competitive displacements offer OEMs and

Operators tremendous cost benefits throughout the remaining product lifecycle.

• Reuse of scalable design tools to reduce risk, cut costs and boost reliability.

Key Product Variants Include

• Single and dual stage nozzle flappers, jet pipers and direct drive configurations with

flow rates ranging from 0.25 to 100 gallons-per-minute in standard production packages.

• Up to 5500 psi and beyond.

Key Features

• Proven design elements to meet extreme environments such as 100G continuous operation.

• Reliable, accurate, and cost effective flow and pressure control.

• Long history of successful, transparent competitive displacements offer OEMs and

Operators tremendous cost benefits throughout the remaining product lifecycle.

• Reuse of scalable design tools to reduce risk, cut costs and boost reliability.

Benefits of Electric

›Elimination of hydraulic fluid and associated problems with contamination,

cold weather and leakage

›Higher reliability design inherent to electric actuation significantly increase maintenance intervals

› Improved control response and precision

›OEM Qualified and included with the majority of new Gas Turbines

›Compliant with NERC standards for cold weather preparedness

›Service Tool provides enhanced diagnostics for plant personnel and early indication

of performance issues at the DCS operator terminal

Easy to Install

›Most valves are drop in replacements and do not require piping modifications

›Servovalve Interface option allows the installer to use existing signal wiring from the control system

›Alternate communication options for control system integration are available such as CAN Bus

and Analog I/O for maximum flexibility

›Electric actuators are paired with a remote Digital Valve Positioner (DVP) that controls the actuator

operation and serves as the customer interface for power/signal wiring and digital communications.

Multiple DVP’s can be packaged within a stainless steel cabinet and prewired from the factory to greatly

reduce commissioning time

Common Problems with Hydraulic Actuators in Heavy Duty Gas Turbines

›Hydraulic fluid viscosity dependent on ambient temperatures

– leads to slower response times in cold temperatures

– resulting in failed starts

›Fluid varnishing can lead to clogged servovalve passages resulting in failed starts or stops

›Potential of high pressure hydraulic leaks pose safety risks

›Premature seal failure – noise on hydraulic control circuits can lead to premature

wear on hydraulic and gas seals

›No actuator/valve data to predict failure in advance of outages

Benefits of Electric

›Elimination of hydraulic fluid and associated problems with contamination,

cold weather and leakage

›Higher reliability design inherent to electric actuation significantly increase maintenance intervals

› Improved control response and precision

›OEM Qualified and included with the majority of new Gas Turbines

›Compliant with NERC standards for cold weather preparedness

›Service Tool provides enhanced diagnostics for plant personnel and early indication

of performance issues at the DCS operator terminal