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Gas Engine Control Systems
Gas Engine Air Fuel Ratio (AFR) Applications
Woodward air-fuel ratio control solutions combine electronic control systems with valve, actuation, and gas mass flow metering technology into a highly-integrated solution for industrial gas engines. The control solutions are used on many modern gas engine applications in the gas compression and power generation market.
Caterpillar G3512LE
Fuel: Natural Gas
Combustion: Lean Burn
Fuel System: Low Pressure, Impco Carbureted
Problem
Need to meet local emissions regulations
Caterpillar only guarantees emissions with "Customer Supplied Air Fuel Ratio Control" on new engines.
Solution
- Woodward E3 Lean Burn Trim System with Speed Control
- GCS designed control cabinet
- Dual F-Series ITBs controlled in tandem
Added Benefits
GCS replaced the factory speed control with Woodward ProAct actuator and standard "OEM style" mounting kit
Results
Tested to 0-100% & 100 - 0% load steps with load bank.
Customer impressed with results and best gas engine performance they had experienced.
Caterpillar G3512LE
Fuel: Landfill Gas
Combustion: Lean Burn
Fuel System: Low Pressure, Impco Carbureted
Problem
Need to meet local emissions regulations
Inconsistent starting on low BTU fuel
Solution
- Woodward E3 Lean Burn Trim System with Speed Control
- Dual F-Series ITBs controlled in tandem
Added Benefits
GCS replaced the factory speed control with Woodward ProAct actuator and standard "OEM style" mounting kit.
Results
Consistent starting on landfill gas
Removed operator intervention with manual hand valve on fuel inlet
Caterpillar G3412LE
Fuel: Natural Gas
Combustion: Lean Burn
Fuel System: Low Pressure, Impco Carbureted
Problem
Need to meet local emissions regulations
Caterpillar only guarantees emissions with "Customer Supplied Air Fuel Ratio Control" on new engines.
Solution
- Woodward E3 Lean Burn Trim System with Speed Control
- L-Series ITB for fuel control
Added Benefits
Replaced the factory speed control with Woodward ProAct ITB and custom mounting arrangement.
Results
Consistent and reliable emissions reduction to meet EPA requirements.
Caterpillar G3412LE
Woodward E3 Lean Burn Trim AFR
Power Generation for Municipal Water Facility
Caterpillar G3412LE
Fuel: Propane
Combustion: Lean Burn
Fuel System: Low Pressure, Impco Carbureted
Problem
Need to meet local emissions regulations
Caterpillar only guarantees emissions with "Customer Supplied Air Fuel Ratio Control" on new engines.
Solution
- Woodward E3 Lean Burn Trim System with Speed Control
- L-Series ITB for fuel control
Added Benefits
Replaced the factory speed control with ProAct ITB and custom mounting arrangement.
Results
Were able to achieve consistent and reliable emissions reduction.
Caterpillar G3512
Fuel: Natural Gas
Combustion: Rich Burn
Fuel System: High Pressure, Impco Carbureted
Problem
Need to meet local emissions regulations
Existing engine was being rebuilt and needed a new control system.
Solution
- Woodward E3 Rich Burn Trim System with Speed Control
- GCS designed control cabinet
- F-Series ITB for fuel control
- DCL 3-way catalytic converter
Added Benefits
GCS installed the standard "OEM style" mounting kit with Woodward ProAct actuator.
Results
Meeting emissions requirements
Excellent engine performance
Caterpillar 3500 A Series
OEM Actuation and Linkage
Woodward Replacement Kit
GCS designed an actuation package utilizing the
Woodward ProAct ISC actuator to address linkage problems
between the OEM actuator and throttle body on
older Caterpillar G3500A Series engines.
Improved Actuation on Caterpillar 3500 engines
Linkage before
Linkage after
