Project Clean Air '72,LNG Conversion of GM-71Series Diesel Engine.

摘要

The specific goal of Project Clean Air '72was to develop and design a conversion procedure for the Detroit Diesel Series 71engine,the standard engine for transit buses in the U.S.,to operate on liquid natural gas (LNG) as a fuel. The conversions would provide dependable,proven transit bus powerplant with low emissions and an extended service life. Air pollution caused by a transit rubber-tired vehicle as a result of its emissions is the function of its engine and the type of fuel used. Pollution reduction,at the source,can be obtained by altering the vehicle engine,adapting it to the use of a proper fuel,which lends itself to emission control. A gaseous fuel converted engine,if properly developed,offers the potential of lower exhaust emissions,control of smoke and odor and lower engine noise levels. Portions of this document are not fully legible.