3 days MOT/MGAZ-E
- Engineers and technical staff of gas engine design, development or tuning departments. For a better understanding applicants are advised to preliminary follow the Module 1.
- To acquire an overview of gas engines technologies and operations.
- To explain the basic principles of gas engines.
- To know the fundamentals about gas combustion systems design and construction.
- To know the architectures "Dual fuel" and "Full Gas" .
- To know technologies associated with gas engines.
- To explain how the gas characteristics affect the engine behavior.
- To be aware of the requirements of these engines (gas quality, reliability, wear, ...).
- To understand the structure and the basics on the gas engine control operation.
- To be able to select gas depollution strategy: raw emissions improvement or after-treatment.
- Module 1 "MOT/MOT1-E" training or a basic knowledge of spark ignition engines and diesel engines operations.
Ways and means
- All trainers are industry experts, delivering real life examples.
Gas engines based on ignition engines (CNG and LPG) 0.5 day
- Combustion fundamentals of spark ignition engines.
- Combustion of the gas in this type of engine.
- Abnormal combustion and associated risks.
- Mono-fuel or dual fuel. Applications for particular vehicles.
- Liquid or gas injection. Architecture and associated systems with gas engines.
- Interests consumption, prices, pollution, impact on performance.
- Perspective: use of dual fuel with turbocharged GDI engines.
Gas engines based on diesel engines 0.5 day
- Fundamentals of combustion of diesel engines.
- Operation of gas engines and associated systems.
- Pollution impact, consumption impact and performance impact.
- Engine trucks or off-road
- Case conversions: Diesel combustion to SI gas.
- Recent cases of U.S heavy-duty engines: dual fuel Diesel/CNG based diesel.
- Marine and stationary engines:
- Operation of dual fuel engines : principle, architecture of the combustion chamber and injection systems.
- Direct or indirect injection. Consumption and performance impacts.
Engine fuels characteristics 0.5 day
- Reminders of liquid fuels
- Fuel for spark ignition engines: qualifications.
- Fuel for diesel engines: qualifications.
- Gaseous fuels main characteristics and specifications: natural gas vehicles (CNG) and liquefied natural gas (LPG), density, octane rating, volatility, chemical composition, sulfur, and impact on the engine behavior.
- Impact of the fuel composition on raw emissions and after-treatement emissions.
Lubrication - Reliability and wear 0.5 day
- Gas impact on the oil operation and lubricating oil properties.
- Gas impact on the engines operation.
- Risks of wear and reliability. Impact on engine definitions.
Engine management system 0.5 day
- Reminders about engine management of spark ignition and compression engines.
- Impact of gas operation on the engine management.
- Technical definitions of gas engine management systems (regulators, tank, pressure sensors, valves, temperature sensors).
- Gas impact on engine management strategies.
Spark ignition engine after-treatment 0.5 day
- Reminders about aftertreatment of spark ignition and compression engines.
- Gas impact on the aftertreatment of such engines.