Accession Number : ADA115073

Title :   Turbocharging of Small Internal Combustion Engine as a Means of Improving Engine/Application System Fuel Economy-Further Turbocharger Improvements.

Descriptive Note : Final rept. Oct 80-Feb 82,

Corporate Author : AERODYNE DALLAS TX

Personal Author(s) : Arvin,John R

PDF Url : ADA115073

Report Date : Apr 1982

Pagination or Media Count : 80

Abstract : Improvements to a small diesel engine turbocharger were made based on data gathered during a previous Army contract. The improved turbocharger was fabricated and tested on a small, four cylinder, 239 CID diesel engine. Engine dynamometer test data revealed a 2 to 9 percent reduction in fuel consumption at all points over the operating envelope. A turbocharger was operated for 1011 hours at speeds between 70000 and 78000 rpm without incident. The ball bearings were in excellent condition at the end of the test. A math model of the engine and turbocharger was generated. The model was used to estimate 13 Mode Federal Diesel Emissions Cycle, the LA4 driving cycle and the application of the variable area turbine nozzle (VATN) turbocharger to a diesel engine driven generator set. A recommendation was made to build a gen set demo unit. A fuel savings of 8 to 10 percent was estimated for a 30KW DED generator set. (Author)

Descriptors :   *Turbochargers, *Diesel engines, *Performance(Engineering), Motor generators, Fuel consumption, Efficiency, Emission, Engine components, Bearings, Ball bearings, Mathematical models

Subject Categories : Electric Power Production and Distribution
      Reciprocating and Rotating Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE