HCNG is a term that combines the first letters of ‘hydrogen’ and ‘compressed natural gas’ and represents a blended fuel of hydrogen and compressed natural gas, which has better cleanliness and combustion capability than CNG.

This technology is a HCNG engine technology that can satisfy the post EURO-6 exhaust emission regulation.

 

 

Client / Market

• Manufacturer/supplier/demander of engines for power generation, car, and ship

 

Necessity of this Technology

• EU’s exhaust emission regulation EURO-6 has come into effect since 2014, and post EURO-6, that is, EURO-7, which is stricter than EURO-6, is expected to come into effect starting 2020.
• Domestic exhaust regulation for large vehicles including bus abides by the EU standard that vehicles that are currently in development must be equipped with a technology that satisfies EURO-7 to be commercialized.

 

Technical Differentiation

• With the equivalent power output capacity, the HCNG engine emits 18% less CO2 and shows 8% improvement in specific fuel consumption compared to existing city buses using CNG.
• Particularly, it reduces all harmful exhaust substances to below 1/3 of the EURO-6 regulation that it will easily fulfill the EURO-7 regulations that will come into effect starting 2020.
• High EGR technology-particularly suitable for HCNG engine, fuel supply and control technology, and exhaust post treatment technology are applied to all operation conditions for optimization and to improve durability and specific fuel consumption.

 

Excellence of Technology

• It is the world’s first HCNG engine. (Advanced countries are also working on a HCNG engine to cope with the future era of hydrogen energy but have not developed an engine that satisfy the EURO-6 regulations.)
• To secure more commercialized technologies, a HCNG engine has been installed in 2 city buses that operate in Ulsan and Incheon each.
• The research team has published 27 papers including 13 HCNG engine-related SCI papers.

 

 

Current Intellectual Property Right Status

PATENT

• Method for Controlling Combustion Processes of the Hydrogen Engine (KR1290775)
• A dvance Method of Startability for Natural Gas and Hydrogen blended fuel engine (KR1550813)
• Method for Improving Engine Idle Starting Ability and Catalyst Effect (KR1544388)
• Control Apparatus of Engine Using Reformed Gas and Natural Gas (KR1203161)

KNOW-HOW

• HCNG fuel supply system, turbo charger and ECU matching technology
• Control variable optimization by operating condition for HCNG engine
• HCNG engine’s excess air ratio, EGR rate and exhaust gas optimized mapping technology
• Post treatment apparatus optimized mapping technology for HCNG engine’s fuel and transient operating condition
• HCNG engine’s combustion chamber optimization and key operating conditions’ combustion performance assessment technology