System Features:

• Provides complete misfire detection, speed control, engine protection, and sequencing ignition in addition to AFR control
• Simple to calibrate
• Easy to use on a day-to-day basis and will notify the operator if an out-of-compliance condition may exist
• Optimizes the amount of time the engine is in compliance as compared to other products on the market

 E3 Lean-Burn Trim System

E3 Rich-Burn (Stoichiometric) System

E3 Full Authority Control System

Woodward's E3 Lean-Burn Trim gas engine system controls the air-fuel ratio by controlling the fuel metering trim valve. The system is designed to control lean-burn industrial gas engines used in numerous power generation, pumping, and other stationary applications ranging from 300 kW to 2000 kW (400–2700 hp). The E3 Lean-Burn Trim system is a fully integrated engine control solution with full authority over spark, fuel, and air.

Woodward's E3 Rich-Burn gas engine control system controls the air-fuel ratio by controlling the fuel metering trim valve. By means of the exclusive StableSense™ oxygen feedback sensor in the exhaust and the unique StableSense control algorithm the air-fuel ratio (lambda) is controlled slighty below 1 to optimize the three-way catalyst emission reduction.
The system is designed for the most popular engines used in gas compression, and many power generation or irrigation pump applications where the energy quality of the fuel supply is stable.
The Woodward E3 Rich-Burn system-based solution analyzes and controls all of the functions of your engine and catalyst to optimize the amount of time your engine is in compliance. If the engine falls out of compliance, the system has the ability to shut down or notify the user of the condition.

Woodward's E3 Full Authority gas engine control system for lean-burn engines controls the air-fuel ratio by controlling the gas mass flow metering valve (TecJetTM). The Full Authority system enables faster load transients for the engine because it has a faster and more stable control over the air-fuel ratio. The E3 Full Authority system is designed for gas engines used in applications where the energy quality of the fuel supply is variable; such as engines used at landfills, wastewater treatment plants, or bio-gas recovery plants.
The E3 Full Authority system is a fully-integrated engine control solution with full authority over spark, fuel, and air. Additionally, diagnostics such as detonation and misfire, as well as other health monitoring, are integrated into the system. This fully integrated approach permits precise governing and air-fuel ratio control while remaining flexible enough for large variations in fuel quality.

System Features:

• Integrated approach reduces system complexity and reduces overall cost
• Scalable to meet entire range of customer needs
• Integrated engine protection and diagnostics to ensure safe engine operation
• Power generation or mechanical drive applications

System Features:

• Provides complete misfire detection, speed control, engine protection, and sequencing ignition in addition to AFR control
• Is simple to calibrate
• Is easy to use on a day-to-day basis and will notify the operator if an out-of-compliance condition may exist
• Optimizes the amount of time the engine is in compliance as compared to other products on the market
• Utilizes proven automotive technology to solve the problems of the industrial marketplace

System Features:

• Allows the engine to operate on different fuels while maintaining engine efficiency
• Integrated approach reduces system complexity and reduces overall cost
• Utilizes speed-density-based Air-Fuel Ratio controller
• Can handle gas quality changes of ±10% CH4
• Can handle gas quality changes between 20–100% CH4 with use of an External Gas Quality Analyzer

Woodward E3 Fuel Blending System

The Woodward E3 Fuel Blending gas engine control system is designed for gas engines used in applications where the energy quality of the fuel supply is variable, but where the customer wants to be able to supplement the “poor” energy quality fuels with natural gas. The E3 Fuel Blending system combines high-quality natural gas with lower-quality bio-gas fuels, and adjusts the fuel mix continuously during engine operation to achieve desired power outputs or when bio-gas is in low supply.

The E3 Fuel Blending control system consists of an engine controller that performs speed/load control, air-fuel ratio control, ignition control, diagnostics, and basic engine protection. These systems are structured so that the customer can implement only what is needed, and with a sliding price scale. Woodward offers an alternative to blend fuel for your bio-gas solutions without the high cost of a plant level PLC-based blending system.