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A Study on the Practicability of a Secondary Air Injection for Emission Reduction
Technical Paper
1999-01-1540
ISSN: 0148-7191, e-ISSN: 2688-3627
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English
Abstract
In this study, feasibility tests of secondary air injection technology and lean A/F control technology were performed for LEV program using the FTP75 test on a 2.0 DOHC A/T vehicle. Second-by-second emissions and temperatures were evaluated. The temperatures of exhaust gas were measured at exhaust manifold, front of warm up, and the center of warm up converter. At first, amount of secondary air injection was determined with a bench aged warm up converter and a fresh UCC. And then, the performances of secondary air injection and lean A/F control strategy were compared with 80,000km vehicle aged converters(warm up converter, UCC). Both secondary air injection and lean A/F control technologies satisfied the ULEV regulation. This study shows that the lean A/F control strategy can be one of the potential technologies to meet the LEV/ULEV regulations without an active system that need a cost up.
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Son, G., Kim, D., Lee, K., Choi, E. et al., "A Study on the Practicability of a Secondary Air Injection for Emission Reduction," SAE Technical Paper 1999-01-1540, 1999, https://doi.org/10.4271/1999-01-1540.Also In
References
- Kollmann K. Abthoff J. Zahn W. Bischof H. Gohre J. “Secondary Air Injection with a NEW Developed Electrical Blower for Reduced Exhaust Emissions” SAE Paper 940472 1994
- Katahiba H. Nishiyama R. Nishimura Y. Hosoya Y. Arai H. Washino S. “Development of an Effective Air-Injection System with Heated Air for LEV/ULEV” SAE Paper 950411 1995
- Kishi N. Hashimoto H. Fujimori K. Ishii K. Komatsuda T. “Development of the Ultra Low Heat Capacity and Highly Insulating(ULOC) Exhaust Manifold for ULEV” SAE Paper 980937 1998