Development of the High Performance L4 Engine ULEV System

A new simple ULEV system has been developed, using only an underfloor catalytic converter. The new system features a VTEC (variable valve timing and lift mechanism) engine with a newly developed catalyst, a precise air-fuel ratio control for maximizing the catalyst performance and the newly developed low heat capacity exhaust system with the air-gap. These technology have contributed to a reduction in the feed gas, the quick activation of the catalyst and an improvement in the maximum conversion ratio of the catalyst, making it possible to pass the ULEV standard without sacrificing vehicle output power.

• Record URL:
  • https://doi.org/10.4271/980415
• Availability:
  • Find a library where document is available. Order URL: http://worldcat.org/issn/01487191
• Supplemental Notes:
  • Abstract reprinted with permission of SAE International.
• Authors:
  • Kishi, Noriyuki
  • Kikuchi, Shinichi
  • Seki, Yasunari
  • Kato, Akira
  • Fujimori, Koichi
• Conference:
  • International Congress & Exposition
  • Location: Detroit Michigan, United States
  • Date: 1998-2-23 to 1998-2-26
• Publication Date: 1998-1-23

Language

• English

Media Info

• Media Type: Web
• Serial:
  • SAE Technical Paper
  • Publisher: Society of Automotive Engineers (SAE)
  • ISSN: 0148-7191
  • EISSN: 2688-3627
  • Serial URL: http://papers.sae.org/

Subject/Index Terms

• TRT Terms: Catalysts; Catalytic converters; Exhaust system components; Valve timing
• Subject Areas: Highways; Vehicles and Equipment;

Filing Info

• Accession Number: 01792127
• Record Type: Publication
• Source Agency: SAE International
• Report/Paper Numbers: 980415
• Files: TRIS, SAE
• Created Date: Dec 9 2021 10:12AM