Design and Evaluation of a Stratified Charge Multifuel Military Engine

The conversion of the Military L-141 gasoline engine to the Texaco Combustion Process to achieve improved fuel economy and multifuel capability is discussed. Under contract to the U. S. Army Tank Automotive Command, the design and fabrication of both single cylinder and multi-cylinder versions of the engine have been carried out. Considerable engine dynamometer testing and preliminary evaluation in an M-151 vehicle has shown that stratified combustion over the required load and speed range, multifuel capability and a significant improvement in fuel economy relative to the standard engine have been attained. Design features of the prototype engine and test results to date are presented.