Emission Characteristics of Gasoline and LPG in a Spray-Guided-Type Direct Injection Engine Korea Institute of Machinery and Materials

Format:

Conference/Event

Author/Creator:

Park, Park, author.

Contributor:

Choi, Young

Kang, Kern-Yong

Kim, Hongsuk

Kim, Tae-yŏng

Lee, Yonggue

Oh, Seungmook

Park, Yunseo

Conference Name:

SAE 2013 World Congress & Exhibition (2013-04-16 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 2013

Summary:

Nowadays, automobile manufacturers are focusing on reducingexhaust-gas emissions because of their harmful effects on humansand the environment, such as global warming due to greenhousegases. Direct injection combustion is a promising technology thatcan significantly improve fuel economy compared to conventionalport fuel injection spark ignition engines. However, previousstudies indicate that relatively high levels of nitrogen oxide(NOx) emission were produced with gasoline fuel in aspray-guided-type combustion system as a result of the stratifiedcombustion characteristics. Because a lean-burn engine cannotemploy a three-way catalyst, NOx emissions can be anobstacle to commercializing a lean-burn direct injectionengine.Liquefied petroleum gas (LPG) fuel was proposed as analternative for reducing NOx emission because it has ahigher vapor pressure than gasoline and decreases the local richmixture region as a result of an improved mixing process. Thecombustion and emission characteristics of LPG and gasoline fuelswere compared in a multi-cylinder engine with a spray-guided-typecombustion system. A lower NOx emission value could beachieved with a single injection of LPG, while the hydrocarbonemissions increased

Notes:

Vendor supplied data

Publisher Number:

2013-01-1323

Access Restriction:

Restricted for use by site license