Study on the optimal injection condition for HC-LNT catalyst system for diesel engines with a gasoline PFI type injector
- Authors
- 이기형
- Issue Date
- Feb-2011
- Publisher
- 대한기계학회
- Keywords
- Reduction systems; PFI(Port fuel injection); Catalysts; Stoichiometric operating conditions; Hydrocarbons; Jet pumps; Fuels; Optimization; Information use; LNT; Optimal injection; Spray behavior; Diesel engines; Catalyst system; Lean NOx trap; Port fuel i
- Citation
- 2010년도 열공학부문 춘계학술대회, v.-, no.-, pp.115 - 120
- Indexed
- SCOPUS
KCI
- Journal Title
- 2010년도 열공학부문 춘계학술대회
- Volume
- -
- Number
- -
- Start Page
- 115
- End Page
- 120
- URI
- https://scholarworks.bwise.kr/erica/handle/2021.sw.erica/38245
- DOI
- 10.3795/KSME-B.2011.35.2.121
- ISSN
- 12264881
- Abstract
- NOx (Nitrogen Oxide) reduction system periodically needs a rich or stoichiometric operating condition to reduce NOx. A new method that optimizes the control of external HC injection into a diesel exhaust pipe for HC-type LNT (Lean NOx Trap) catalyst system has been developed. In this paper, these catalysts are called HC-LNT catalysts. The concentration and amount of HC can be controlled by controlling the external injection. In this study, we investigated the relationship between the spray behavior of hydrocarbons injected into the transparent exhaust pipe and NOx reduction characteristics. From the results of this experiment, we obtained useful information about the optimum injection and position of HC injector to the exhaust pipe. Further, we obtained useful information about the optimal injection condition for an HC-LNT catalyst system with a gasoline PFI (port fuel injection) typeinjector. © 2011 The Korean Society of Mechanical Engineers.
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