An alternative method for fast light-off of catalysts - Cranking exhaust gas ignition

Yong Seok Cho; Yoon Seok Lee; Duk Sang Kim; Sung Yong Jung; In Yong Ohm

doi:10.4271/2002-01-1678

An alternative method for fast light-off of catalysts - Cranking exhaust gas ignition

Yong Seok Cho, Yoon Seok Lee, Duk Sang Kim, Sung Yong Jung, In Yong Ohm

Dept. of Mechanical & Automotive Engineering

Kookmin University

Research output: Contribution to journal › Conference article › peer-review

7 Scopus citations

Abstract

Recent stringent emission regulations need fast light-off of catalysts to reduce HC and CO emissions during cold start. Cranking Exhaust Gas Ignition (CEGI) system, developed in this study, cuts off the ignition signals for 10 seconds during the cranking period for the unburned mixture to bypass the combustion chamber and flow through the exhaust manifold. When the unburned mixture reaches two glowplugs mounted upstream of the catalyst, it is ignited and releases thermal energy to warmup the catalyst. Results from the vehicle tests showed that the catalyst reaches the light-off temperature within 20 seconds and the reduction of exhaust emission was 47.7% for THC and 88.6% for CO in the cold-transient phase of the FTP-75 mode.

Original language	English
Journal	SAE Technical Papers
DOIs	https://doi.org/10.4271/2002-01-1678
State	Published - 2002
Event	International Spring Fuels and Lubricants Meeting and Exhibition - Reno, NV, United States Duration: 6 May 2002 → 9 May 2002

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title = "An alternative method for fast light-off of catalysts - Cranking exhaust gas ignition",

abstract = "Recent stringent emission regulations need fast light-off of catalysts to reduce HC and CO emissions during cold start. Cranking Exhaust Gas Ignition (CEGI) system, developed in this study, cuts off the ignition signals for 10 seconds during the cranking period for the unburned mixture to bypass the combustion chamber and flow through the exhaust manifold. When the unburned mixture reaches two glowplugs mounted upstream of the catalyst, it is ignited and releases thermal energy to warmup the catalyst. Results from the vehicle tests showed that the catalyst reaches the light-off temperature within 20 seconds and the reduction of exhaust emission was 47.7\% for THC and 88.6\% for CO in the cold-transient phase of the FTP-75 mode.",

author = "Cho, \{Yong Seok\} and Lee, \{Yoon Seok\} and Kim, \{Duk Sang\} and Jung, \{Sung Yong\} and Ohm, \{In Yong\}",

year = "2002",

doi = "10.4271/2002-01-1678",

language = "English",

journal = "SAE Technical Papers",

issn = "0148-7191",

note = "International Spring Fuels and Lubricants Meeting and Exhibition ; Conference date: 06-05-2002 Through 09-05-2002",

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T1 - An alternative method for fast light-off of catalysts - Cranking exhaust gas ignition

AU - Cho, Yong Seok

AU - Lee, Yoon Seok

AU - Kim, Duk Sang

AU - Jung, Sung Yong

AU - Ohm, In Yong

PY - 2002

Y1 - 2002

N2 - Recent stringent emission regulations need fast light-off of catalysts to reduce HC and CO emissions during cold start. Cranking Exhaust Gas Ignition (CEGI) system, developed in this study, cuts off the ignition signals for 10 seconds during the cranking period for the unburned mixture to bypass the combustion chamber and flow through the exhaust manifold. When the unburned mixture reaches two glowplugs mounted upstream of the catalyst, it is ignited and releases thermal energy to warmup the catalyst. Results from the vehicle tests showed that the catalyst reaches the light-off temperature within 20 seconds and the reduction of exhaust emission was 47.7% for THC and 88.6% for CO in the cold-transient phase of the FTP-75 mode.

AB - Recent stringent emission regulations need fast light-off of catalysts to reduce HC and CO emissions during cold start. Cranking Exhaust Gas Ignition (CEGI) system, developed in this study, cuts off the ignition signals for 10 seconds during the cranking period for the unburned mixture to bypass the combustion chamber and flow through the exhaust manifold. When the unburned mixture reaches two glowplugs mounted upstream of the catalyst, it is ignited and releases thermal energy to warmup the catalyst. Results from the vehicle tests showed that the catalyst reaches the light-off temperature within 20 seconds and the reduction of exhaust emission was 47.7% for THC and 88.6% for CO in the cold-transient phase of the FTP-75 mode.

UR - http://www.scopus.com/inward/record.url?scp=85072464383&partnerID=8YFLogxK

U2 - 10.4271/2002-01-1678

DO - 10.4271/2002-01-1678

M3 - Conference article

AN - SCOPUS:85072464383

SN - 0148-7191

JO - SAE Technical Papers

JF - SAE Technical Papers

T2 - International Spring Fuels and Lubricants Meeting and Exhibition

Y2 - 6 May 2002 through 9 May 2002

ER -

An alternative method for fast light-off of catalysts - Cranking exhaust gas ignition

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