2001-01-3651

Title: Design of a high-compression, direct-injection, spark- ignition, methanol-fueled research engine with an integral injector-ignition source insert

Abstract:

A stratified charge research engine and test stand were designed and built for this work. The engine was designed to exhibit some of the desirable traits of both the premixed charge gasoline engine and modern diesel engine. This spark ignition engine is fueled by M100 (99.99% pure methanol), operates under high compression (19.3:1) and uses direct fuel injection to form a stratification of the fuel-air mixture in the cylinder. The beginning of the combustion event of the stratified mixture is triggered by spark plug discharge. The primary goal of this project was to evaluate the feasibility of using a removable integral injector ignition source insert, which allows a convenient method of changing the relative location of the fuel injector to the ignition source, as well as the compression ratio, squish height, and bowl volumes. This paper provides an explanation of the hardware included in the experimental setup of the engine and selection of the direct injector configuration. Upon setup completion, performance results were measured from three combustion chamber/injector configurations, and preliminary results are presented.

Index Terms:

Alcohols;      Direct injection;      Engine design;      Research and development;      Spark ignition engines;      Stratified charge engines;     

Author(s):

Other Info:

Publisher: Society of Automotive Engineers, Inc., Warrendale, Pennsylvania, USA
Publishers Segment: SAE
Country of Publication: United States
Document Source: 
Document Category: N/A

Meeting Name: SAE International Fall Fuels and Lubricants Meeting and Exhibition
Meeting Location: San Antonio, Texas, USA
Meeting Start Date: 09-24-2001
Meeting End Date: 09-27-2001
Larger Publication: 
Presenter: United States
Designation: 
Section: