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New perspectives for advanced automobile diesel enginesComputer simulation results are presented for advanced automobile diesel engine performance. Four critical factors for performance enhancement were identified: (1) part load preheating and exhaust gas energy recovery, (2) fast heat release combustion process, (3) reduction in friction, and (4) air handling system efficiency. Four different technology levels were considered in the analysis. Simulation results are compared in terms of brake specific fuel consumption and vehicle fuel economy in km/liter (miles per gallon). Major critical performance sensitivity areas are: (1) combustion process, (2) expander and compressor efficiency, and (3) part load preheating and compound system. When compared to the state of the art direct injection, cooled, automobile diesel engine, the advanced adiabatic compound engine concept showed the unique potential of doubling the fuel economy. Other important performance criteria such as acceleration, emissions, reliability, durability and multifuel capability are comparable to or better than current passenger car diesel engines.
Document ID
19840047275
Acquisition Source
Legacy CDMS
Document Type
Conference Paper
Authors
Tozzi, L.
(Cummins Engine Co., Inc. Columbus, IN, United States)
Sekar, R.
(Cummins Engine Co., Inc. Columbus, IN, United States)
Kamo, R.
(Cummins Engine Co., Inc. Columbus, IN, United States)
Wood, J. C.
(NASA Lewis Research Center Cleveland, OH, United States)
Date Acquired
August 12, 2013
Publication Date
January 1, 1983
Subject Category
Mechanical Engineering
Accession Number
84A30062
Funding Number(s)
CONTRACT_GRANT: DEN3-261
Distribution Limits
Public
Copyright
Other

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