Delphi's third-generation gasoline direct-injection
compression-ignition (GDCI) combustion system will attain a thermal efficiency
of 42%, This thermal efficiency will be one of the highest efficiency to be claimed
This engine will have
approximately 22% better thermal efficiency than a current conventional
spark-ignited gasoline engine with direct fuel injection and 11% better than a
2L diesel engine.
This engine includes following technology
Features of engine:
Features related to emission :
- “wetless” combustion,
- quicker cold-start operation
- an optimized low-temperature exhaust after treatment
Features of engine:
- compression ratio to 16:1
- Increased longer stroke
- Increased top-dead-center piston clearance
- Advanced fuel injectors->350 bar (5076 psi) and provide three injection event
Features related to emission :
- Low-temperature catalyst,
- Intake-air heater,
- Gasoline particulate filter
- SCR - urea injection
Image Source : SAE
content Source :SAE