Year: 2026

Self‐Diagnostics

The In-Pulse™ ll has integrated diagnostics to determine the control and IO integrity.

Memories, processor, IO, and baseline power supply monitoring are included in the diagnostic tests.

Communications

The In-Pulse ll provides two isolated serial interfaces—one RS-232 and the other RS-485.

Both ports feature an industry-standard Modbus® * protocol (ASCII or RTU) that can interface

to a Modbus master or slave device such as a Human/Machine Interface (HMI).

These ports also support Woodward ServLink protocol for a Watch Window or Control View PC interface.

Baud rates are tunable to meet specific user requirements.

The In-Pulse ll also provides three CAN ports, one of which is isolated if requested.

All ports feature J1939 and CANOpen protocols. These ports can be used for distributed

control with other devices such as actuators, valves, other In-Pulse ll controls and 733’s 

(to load share for example), and to communicate with other on-engine devices such as I/O

modules and displays.

The isolated port is well suited for communication to off-engine components like PLCs,

ship and building systems.

Programming

The In-Pulse ll is programmed using Woodward’s proven GAP™ Graphical Application Programmer.

GAP is a dedicated, high-level, block-oriented programming language specifically designed for simple

and quick implementation of difficult engine control strategies.

GAP functions are easily modified and expanded, allowing fast creation of new applications.

Adjustments

Adjustments can be made quickly and easily through the Woodward Watch Window or Control

View PC configuration interfaces. Both adjustment methods are menu-driven.

The control saves all set points to non-volatile memory uponcommand.

Communications

The In-Pulse ll provides two isolated serial interfaces—one RS-232 and the other RS-485.

Both ports feature an industry-standard Modbus® * protocol (ASCII or RTU) that can interface

to a Modbus master or slave device such as a Human/Machine Interface (HMI).

These ports also support Woodward ServLink protocol for a Watch Window or Control View PC interface.

Baud rates are tunable to meet specific user requirements.

The In-Pulse ll also provides three CAN ports, one of which is isolated if requested.

All ports feature J1939 and CANOpen protocols. These ports can be used for distributed

control with other devices such as actuators, valves, other In-Pulse ll controls and 733’s 

(to load share for example), and to communicate with other on-engine devices such as I/O

modules and displays.

The isolated port is well suited for communication to off-engine components like PLCs,

ship and building systems.

Key Product Variants Include

• Dual-fuel injectors

• Single nozzle dual-fuel injectors

Key Features

• Simplified design for low- pressure dual-fuel systems.

• A suitable injection system is available for almost all engine sizes.

• Only one injector with one nozzle or one needle is necessary per cylinder.

• Major improvements in terms of installation space and complexity.

• The proposed single-nozzle dual-fuel technology is expected to lead to a simplified

system layout for dual-fuel engines.

• Our injectors are well-suited to deliver the required shot-to-shot stability.

• Robust design to reach highest service life expectations.

• High precision and exceptional reliability.

• Technical support from concept development to aftersales service.

• Leading engine manufacturers (OEM) trust in our products.

Key Product Variants Include

• High-pressure pumps for 2- or 4-cylinder inline pumps. Up to 30 l/min fuel output.

Pressures up to 2.500 bar.

• Mechanical PLN pumps for all 4-stroke engine sizes and all fuel types:

MDO, HFO, bio-fuel, Orimulsion, among others.

Key Features

• Modular design allows simple adaptation to specific customer applications.

• The same design base for all common-rail pumps from high-speed to 2-stroke engines.

• Designed, developed and tested in-house in a consistently stringent development program.

• Proven functionality when delivered to the customer.

• Robust design to reach highest service life expectations.

• One supplier for all components.

• High precision and exceptional reliability.

• Technical support from concept development to aftersales service.

• Leading engine manufacturers (OEM) trust in our products.

If required, the In-Pulse ll can be used as the main control unit within an enginemanagement system.

The control is designed for network connectivity to other Woodward or customer-selected devices,

such as remote l/O modules, actuators.ignition controls, air/exhaust and fuel flow control valves,

and power managementcontrols.it may be programmed to perform all engine functions such as speed,

airand fuel control, monitoring, alarms, engine protection, and sequencing.

The In-Pulse ll improves engine management or plant control system reliability byoffering many

redundant options, including redundant networks, redundant speedand position sensors,

redundant power supply inputs, and a second In-Pulse ll wiredas a hot stand-by for critical

applications or where marine classification requires it.

Because of the many philosophies with respect to sensing speed and crank position,

the control incorporates multiple sensing algorithms that include missing tooth andpin

detection on the crank or cam for sensing speed and crank position.

lf sensorfailure protection is required, redundant sensors can be employed.

Programming

The In-Pulse ll is programmed using Woodward’s proven GAP™ Graphical Application Programmer.

GAP is a dedicated, high-level, block-oriented programming language specifically designed for simple

and quick implementation of difficult engine control strategies.

GAP functions are easily modified and expanded, allowing fast creation of new applications.

Adjustments

Adjustments can be made quickly and easily through the Woodward Watch Window or Control

View PC configuration interfaces. Both adjustment methods are menu-driven.

The control saves all set points to non-volatile memory uponcommand.

The in-Pulse ll manages the core fuel system and injection events for many EFl fuelsystems,

including electronic unit injectors and pumps (EUl/EUP), common railsystems (C-R),

$OGAV™ Solenoid Operated Gas Admission Valves, micro pilotinjection systems,

and electronic rail valves (ERV).The In-Pulse ll can mount directly on the engine,

withstanding the high temperatureand vibration environment.

The In-Pulse ll can also be mounted inside nearby controlcabinets if required.

The In-Pulse ll, with the addition of an 18-channel driver board, uses the samepackaging,

digital core, software tools, communication ports, l/O, and features of the733 Digital Control.

Therefore where commonengine types utilize different fuel systems,

seamless interchangeability of the corefuel control can be easily accomplished

without redesigning the complete enginemanagement system.

We have developed a simplified injection system for dual-fuel engines

with homogeneous combustion.Since less space in the cylinder head is needed,

a suitable injection system is available for close to all engine sizes.

Features & Functionality

Despite their many advantages, such as high flexibility and operating reliability,

current dual-fuel injection systems have one disadvantage: 

They are large and complex and therefore need correspondingly large installation space.

Single-needle injection systems simplify dual-fuel engine layouts.

We have developed a simplified injection system for dual-fuel engines with

homogeneous combustion. It consists of a single fuel circuit with one high-pressure

pump plus one injector per engine cylinder.

This allows major improvements in termsof installation space and complexity.

Only one injector with one nozzle or one needle is necessary per cylinder.

The injector features a single-needle nozzle, which injects the pilot quantity

and full load in the liquid-fuel operation.

The proposed single-nozzle dual-fuel technology is expected to result in a simplified

system layout for dual-fuel engines. Due to the reduced dimensions of the injector,

less space in the cylinder head is needed and therefore, a suitable injection system

is available for almost all engine sizes.

Remaining challenges for further improvement of low NOx applications (1 g/kWh)

are enhanced spray penetration as well as spray pattern symmetry for a pilot fuel

amount below 1%. Promising measures are currently under development and will

soon be ready for engine tests.

We are also developing a new high-gas-pressure injection system for heterogeneous

combustion engines.

Pumps that are used for the injection of fuels into diesel engines rank among the

most demanding members in the family of pressure generators.

Our pumps are characterized by expertise developed over decades.

Features & Functionality

Our reliable and proven pumps are characterized by expertise developed over decades

in terms of helices (in the case of conventional pump-line-nozzle systems),

component coatings, sealing elements or valve engineering.

The same design base is the take-off point for all common-rail pumps from high-speed to 2-stroke engines.

Modular design enables simple adaptation to specific customer applications.

We deliver mechanical PLN pumps for all 4-stroke engine sizes and all fuel types:

MDO, HFO, bio-fuel, Orimulsion, among others.

Key Product Variants Include

• High-pressure pumps for 2- or 4-cylinder inline pumps. Up to 30 l/min fuel output.

Pressures up to 2.500 bar.

• Mechanical PLN pumps for all 4-stroke engine sizes and all fuel types:

MDO, HFO, bio-fuel, Orimulsion, among others.

Woodward offers a growing line of air valves that, when combined with system knowledge,

enable us to reduce cost and improve reliability. Air valves are part of a broader actuation

system which manages performance of the turbine or engine.

Features and Functionality

Woodward is a world leader in the design and manufacture of air valves and air metering

technologies across the turbine engine environment. Canted shaft designs leverage decades

of experience with reliable operation in harsh environments, including those in extreme

high temp (1400°F) and severe exhaust contamination.

Furthermore, decades of industry leading innovations in turbine engine actuation,

position sensing and servo systems provide for highly reliable and cost-effective solutions.

Key Product Variants Include

• Innovative flow body designs capable of meeting Class IV “bubble tight” sealing per

ANSI/FCI 70-2 over life in extreme environments (equates to 0.01% of rated flow).

Key Features

• A CFD led systems approach to yield significant system level cost and weight savings

without violating the most stringient envelope constraints.

• Leverage of industry leading actuator and servovalve innovations that reduce LRU

and System costs while simultaneously improving reliability.