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http://dx.doi.org/10.7467/KSAE.2015.23.2.221

Characteristics of the In-cylinder Flow and Fuel Behavior with Respect to Fuel Injection Angle and Cone Angle in the PFI Dual Injection Engine  

Lee, Seung Yeob (Department of Mechanical Engineering, Korea University)
Chung, Jin Taek (Department of Mechanical Engineering, Korea University)
Park, Young Joon (Gasoline Engine R&D Team, Hyundai Motor Company)
Yu, Chul Ho (Gasoline Engine R&D Team, Hyundai Motor Company)
Kim, Woo Tae (Gasoline Engine R&D Team, Hyundai Motor Company)
Publication Information
Transactions of the Korean Society of Automotive Engineers / v.23, no.2, 2015 , pp. 221-229 More about this Journal
Abstract
The PFI dual injection engine using one injector per an intake port was developed for solving the DISI engine cost problem. Excellent fuel atomization and targeting of the PFI dual injection engine made enhancement on the fuel efficiency and engine power. In order to develop a PFI dual injection engine, characteristics of the in-cylinder flow and fuel behavior with respect to fuel injection angle and cone angle of the PFI dual injection engine was investigated. Numerical calculation was conducted to analyze 3D unsteady in-cylinder flow and fuel behavior using STAR-CD. The engine operating condition was 2,000rpm at WOT. As a result, the amount of intake air, evaporated fuel and fuel film according to injection angle and cone angle were presented. The results were influenced by interaction between injected fuel and intake port wall.
Keywords
Dual injection; PFI; Injection angle; Cone angle; CFD; In-cylinder flow; Fuel behavior; Fuel film;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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