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Exhaust Gas Turn Flow Construction in Catalyst Unit for Improvement of Purification Rate by Metal Honeycomb Substrate
Technical Paper
2007-32-0056
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English
Abstract
All over the world, stronger controls are being imposed on exhaust gas emissions from automobiles, and thus, more evolutionary catalyst unit technology is being demanded. Specifically, this trend creates the need for small, low-cost catalyst units. To meet this need we have developed a catalyst unit, mounted in the middle of the exhaust pipe, which has a pathway to turn motorcycle exhaust gas in the catalyst (referred to as a “turn flow catalyst unit”). The objective of this development was to miniaturize the catalyst unit and to decrease the amount of catalyst used in the unit.
This newly designed catalyst unit is about 30% lesser in volume than the straight-mounted catalyst units commonly used in motorcycles of the same displacement.
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Authors
- Yuuhi NAKAGAWA - Honda R&D Co., Ltd. Motorcycle R&D Center
- Yasuhiro TAKADA - Honda R&D Co., Ltd. Motorcycle R&D Center
- Nobuhiro SHIMADA - Honda R&D Co., Ltd. Motorcycle R&D Center
- Yoshihiko KUMAGAI - Honda R&D Co., Ltd. Motorcycle R&D Center
- Makoto OGASAWARA - Honda R&D Co., Ltd. Motorcycle R&D Center
Citation
NAKAGAWA, Y., TAKADA, Y., SHIMADA, N., KUMAGAI, Y. et al., "Exhaust Gas Turn Flow Construction in Catalyst Unit for Improvement of Purification Rate by Metal Honeycomb Substrate," SAE Technical Paper 2007-32-0056, 2007.Also In
References
- Okubo, K. Mitsukawa, M. Tsuji, M. Development of Metal Substrate for Motorcycle Catalysts Honda R&D Technical Review 18 1 193 199 2006