Accession Number : ADA298734

Title :   Spark-Timing Control Based on Correlation of Maximum-Economy Spark Timing, Flame-Front Travel and Cylinder-Pressure Rise,

Corporate Author : NATIONAL AERONAUTICS AND SPACE ADMINISTRATION WASHINGTON DC

Personal Author(s) : Cook, Harvey A. ; Heinicke, Orville H. ; Haynie, William H.

PDF Url : ADA298734

Report Date : 1947

Pagination or Media Count : 12

Abstract : A investigation was conducted on a full-scale air-cooled cylinder in order to establish an effective means of maintaining maximum-economy spark timing with varying engine operating conditions. Variable fuel-air-ratio runs were conducted in which relations were determined between the spark timing and the basic factors in engine operation, flame-front travel, and cylinder-pressure rise.

Descriptors :   *SPARK IGNITION ENGINES, PRESSURE GRADIENTS, EXPERIMENTAL DATA, EFFICIENCY, FUEL CONSUMPTION, FUEL AIR RATIO, FLAME PROPAGATION, ENGINE CYLINDERS, KNOCKING, TIMING DEVICES, AIR COOLED.

Subject Categories : Reciprocating and Rotating Engines
      Combustion and Ignition

Distribution Statement : APPROVED FOR PUBLIC RELEASE