LARGE ENGINE CONTROL MODULE for Duel Fuel engines
System offering comprised of Gas admission valves (SOGAV), Diesel main and μPilot injectors (Woodward L’Orange Single needle DF injector support), electric Waste Gate and LECM advanced control.
MAIN: ENGINE CONTROL UNIT
The LECM Main module offers an advanced hardware architecture with a powerful processor and extensive I/O and Ethernet to support the evolving needs of Large Engines. Ethernet can be used for a service interface, an HMI/PLC interface using Modbus TCP/IP, for remote diagnostic emails, and for an IIOT interface to a local gateway.
AUX: COMBUSTION CONTROL
24-channel analog inputs can be configured as knock, pressure or thermocouple input. The Aux hardware supports FFT-based knock detection, advanced knock: pressure sensor assist for knock calibration, in-cylinder pressure-based, real-time combustion diagnostics & control (RT-CDC) and thermocouple monitoring.
EID (ELECTRONIC IGNITION/INJECTION DRIVER) MODULE
One 20-channel module to drive any combination of injector (main chamber, pre chamber, micropilot & common rail) and ignition. Programmable current profile offers the ability to meet any desired energy delivery.
FUEL METERING VALVE
The TecJet valve/actuator is an integrated, digitally compensated, control valve and actuator system for metering and regulating the flow of gaseous fuels. The device is designed to accept a fuel flow demand input signal. It also includes internal feedback sensors that measure fuel pressure, temperature, and valve differential pressure. Based on these sensor input signals, the device calculates and controls the valve position needed to produce a mass flow rate that matches the demanded fuel flow within the accuracy specified.
The TecJet actuator includes closed-loop position control based on an internal position sensor and the calculated position setpoint. Model-based position controller software is used to position the valve.
GAS ADMISSION SOLUTIONS
The performance and characteristics of a gas and dual-fuel internal combustion engine are significantly influenced by Gas Admission Valves (SOGAV).
The SOGAV valves are a family of electrically-actuated, high-response gas admission valves for in-manifold (port) fuel admission. They are used on f4cycle, turbocharged, natural gas or dual-fuel engines. One SOGAV valve is required for each cylinder.
The SOGAV valve is designed as the valve portion of an overall gaseous fuel admission system delivering precise gas mass flow metering per cylinder. This enables gas engines and dual-fuel engines to operate lean burn, increased efficiency & reduced emissions.
SOGAVs are available with IGF code to meet marine compliance
Micro-pilot based DF strategies
Gas and dual-fuel operation ranks as one of the most innovative technologies for a more flexible, more efficient and lower-emission use of large engines (lower NOx / IMO tier 3).
Dual-fuel systems are used in mobile application fields, such as LNG carriers, or in power plants with fluctuating gas supply.
As required, the applications can be operated with gas for reduced emissions as well as with liquid fuel. This ensures a lower “carbon footprint” with less CO2 emissions and less greenhouse gas.