Developing a High-Powered Diesel Engine for Railway Traction

The paper deals, first of all, with the design criteria for the new Sulzer four-stroke locomotive engine being developed by the author’s firm and how some of these derived from two experimental engines which, although identical in construction, were operated on the four-stroke and two-stroke cycle, respectively. Field research as well as elaborate bench test facilities have been provided to perfect the new locomotive diesel engine. The work that has recently been carried out on some of the more important components of this is described. Some mention is made of the problems encountered with combustion and pressure charging at the high specific loads to which this engine type is being taken.