In-line Hydrocarbon (HC) Adsorber System for Cold Start Emissions

Paper #:
  • 970266

Published:
  • 1997-02-24
Citation:
Noda, N., Takahashi, A., and Mizuno, H., "In-line Hydrocarbon (HC) Adsorber System for Cold Start Emissions," SAE Technical Paper 970266, 1997, https://doi.org/10.4271/970266.
Pages:
10
Abstract:
In order to meet the strict automobile emission regulations in the U.S.A. and Europe, new aftertreatment technologies such as the EHC and HC Adsorber have been developed to reduce the cold start emissions.The EHC is obviously effective in reducing emissions, but has the demerits of a large electric power demand and a complicated power control system to support it (13). A by-pass type HC adsorber system has the concerns of unreliable by-pass valves and complicated plumbing (10). A major technical challenge of the in-line type HC adsorber was the difference between the HC desorption temperature and the light-off temperature of the burn-off catalyst.This paper describes the evaluation results of a completely passive “In-line HC Adsorber System” which can reduce the cold start emissions without the application of any type of mechanical or pneumatic control valve in the exhaust system. In summary, the NGK “In-line HC Adsorber System” has demonstrated a drastic reduction in FTP NMHC emission.
Access
Now
SAE MOBILUS Subscriber? You may already have access.
Buy
Select
Price
List
Download
$27.00
Mail
$27.00
Members save up to 40% off list price.
Share
HTML for Linking to Page
Page URL

Related Items

Technical Paper / Journal Article
2010-10-25
Training / Education
2017-12-18
Article
2017-03-13