Accession Number : AD0775793

Title :   A Study of Optimum Engine Scheduling and Its Application to Fluidic Fuel Injection,

Corporate Author : HARRY DIAMOND LABS WASHINGTON D C

Personal Author(s) : Woods,Robert L.

Report Date : AUG 1973

Pagination or Media Count : 50

Abstract : The report describes a method of determining the true optimum air-fuel requirements of a spark-ignition internal-combustion engine for use in a prescheduled fluidic fuel-injection system. This air-fuel information is usually taken in an incorrect manner. The data in this report are taken correctly and result in the true optimum operating schedules. It has been determined that the true optimum air-fuel ratios are about 10% leaner than that normally thought. A discussion of this fallacy is presented. The optimum ignition timing is also investigated. A fluidic fuel-injection system utilizing this air-fuel information is proposed. In this fuel-injection concept, the operator selects fuel consumption and the fluidic control circuit schedules and controls the air consumption. The advantages of this type of system are presented. (Author)

Descriptors :   *SPARK IGNITION ENGINES, *FUEL INJECTION, *FLUIDICS, FUEL METERS, MIXTURES, CONTROL SYSTEMS, OPTIMIZATION, FUEL CONSUMPTION, CARBURETORS

Subject Categories : Combustion and Ignition
      Reciprocating and Rotating Engines

Distribution Statement : APPROVED FOR PUBLIC RELEASE