Woodward's E3 Lean-Burn Trim system controls 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 highly accurate, closed-loop control system helps customers meet regulated emission levels while maintaining engine performance over a wide range of fuel qualities.
The E3 Lean-Burn’s core functionality is an air/fuel ratio trim control using either exhaust oxygen closed loop or generator power feedback. Additional functions are available by adding optional hardware (see tab below). The base system hardware is an air/fuel ratio control E3 controller, trim valve & UEGO or kW feedback sensor. The fuel metering subsystem consists of a carburetor combined with a fuel trim valve, each appropriately sized for the application.
The system can control speed/load, air/fuel ratio and spark timing/duration, at any engine load and speed condition. It can be applied to inline or multibank engines in a wide range of power outputs, both naturally aspirated and turbocharged. Calibration can be fuel specific and the control is easily programmable through Woodward Toolkit.
The E3 Lean-Burn system accommodates a wide range of gas compositions, including LPG, pipeline natural gas, landfill gas, and other low-heating value gases. Anticipated changes in gas quality during normal operation of the engine are compensated by the control by means of kW feedback or UEGO closed loop.
E3 emission control systems can be retrofitted to your existing engines by a Woodward Recognized Engine Retrofit (RER) partner. Find information on an RER in your area from the listing below.
Recognized Retrofit Partners
Alberta Governor Service: Western Canada provinces of British Columbia, Alberta, Saskatchewan, Manitoba.
Provinces of New Brunswick, Newfoundland and Labrador, Nova Scotia, Ontario, Prince Edward Island, and Quebec, and territories of Northwest Territories, Nunavut, and Yukon--select an RER closest to you.
Drake Controls: California, Kansas, western Nevada, Oklahoma, southeastern New Mexico, Texas, Mexico.
Governor Control Systems: Alabama, Arkansas, Florida, Georgia, northern Idaho, Kentucky, Louisiana, Mississippi, North Carolina, Oregon, South Carolina, Tennessee, Virginia, Washington, West Virginia.
Peaker Services: Midwest: Illinois, Indiana, Iowa, Michigan, Minnesota, Missouri, eastern Nebraska, eastern North Dakota, Ohio, eastern South Dakota, Wisconsin; Northeast: Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, Vermont.
Winn-Marion: Rocky Mountains: Arizona, Colorado, southern Idaho, Montana, eastern Nevada, New Mexico, Utah, Wyoming; western Nebraska, western North Dakota, western South Dakota.
Alaska, Hawaii: Select an RER closest to you.
CENTRAL and SOUTH AMERICAN
Recognized Retrofit Partners
Governor Control Services