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U.S. Department of Energy
Office of Scientific and Technical Information

Development of advanced combustion strategies for direct injection heavy duty LPG engines to achieve near-diesel engine efficiency

Technical Report ·
DOI:https://doi.org/10.2172/2479668· OSTI ID:2479668

The Vehicle Technologies Office funds early-stage, high-risk research to develop technology upon which industry can implement innovative transportation energy technologies that increase efficiency, decrease cost, and expand use of domestic energy sources, such as liquefied petroleum gas (LPG). To improve the viability of medium and heavy-duty vehicles the LPG engine efficiency must be closer to that of diesel. This work addresses fundamental limitations to achieve diesel-like efficiencies in heavy duty on-road LPG engines. The primary goal of this research is to achieve diesel-like efficiencies in heavy duty on-road LPG engines, focusing on the Cummins 15-liter engine platform (baseline diesel efficiency of 44% at peak torque). That goal has been achieved, though more work is needed to facilitate practical implementation of the developed technologies.

Research Organization:
Colorado State Univ., Fort Collins, CO (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Vehicle Technologies Office (VTO)
DOE Contract Number:
EE0009198
OSTI ID:
2479668
Report Number(s):
EE0009198
Country of Publication:
United States
Language:
English