A Comparison of Spray-Guided Stratified-Charge Combustion Performance with Outwardly-Opening Piezo and Multi-Hole Solenoid Injectors

This investigation was aimed at measuring the relative performance of two spray-guided, single-cylinder, spark-ignited direct-injected (SIDI) engine combustion system designs. The first utilizes an outwardly-opening poppet, piezo-actuated injector, and the second a conventional, solenoid operated, inwardly-opening multi-hole injector. The single-cylinder engine tests were limited to steady state, warmed-up conditions. The comparison showed that these two spray-guided combustion systems with two very different sprays had surprisingly close results and only differed in some details. Combustion stability and smoke emissions of the systems are comparable to each other over most of the load range. Over a simulated Federal Test Procedure (FTP) cycle, the multi-hole system had 15% lower hydrocarbon and 18% lower carbon monoxide emissions. Most significantly, the spray guided system with the multi-hole spray ended up having 3.0% lower fuel consumption than the piezo system over the simulated FTP cycle.

• Record URL:
  • https://doi.org/10.4271/2011-01-1217
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/19463936
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Smith, James
  • Szekely Jr, Gerald
  • Solomon, Arun
  • Parrish, Scott
• Conference:
  • SAE 2011 World Congress & Exhibition
  • Location: Detroit Michigan, United States
  • Date: 2011-4-12 to 2011-4-14
• Publication Date: 2011-4-12

Language

• English

Media Info

• Media Type: Web
• Features: References;
• Pagination: pp 1481-1497
• Serial:
  • SAE International Journal of Engines
  • Volume: 4
  • Issue Number: 1
  • Publisher: SAE International
  • ISSN: 1946-3936
  • EISSN: 1946-3944
  • Serial URL: https://www.sae.org/publications/collections/content/E-JOURNAL-03/

Subject/Index Terms

• TRT Terms: Combustion; Engine performance; Fuel consumption; Fuel injection; Solenoids; Stratified charge engines; Test procedures
• Subject Areas: Energy; Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01678844
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 2011-01-1217
• Files: TRIS, SAE
• Created Date: Aug 27 2018 2:04PM