Experimental Investigation of Intake Condition and Group-Hole Nozzle Effects on Fuel Economy and Combustion Noise for Stoichiometric Diesel Combustion in an HSDI Diesel Engine

2009 ◽  
Vol 2 (1) ◽  
pp. 1054-1067 ◽  
Author(s):  
Junghwan Kim ◽  
Sung Wook Park ◽  
Mike Andrie ◽  
Rolf D. Reitz ◽  
Kian Sung
Keyword(s):  
Experimental Investigation ◽  
Diesel Engine ◽  
Fuel Economy ◽  
Combustion Noise ◽  
Diesel Combustion ◽  
Hsdi Diesel Engine

Multi-Valve High-Speed Direct Injection Diesel Engines—the Design Challenge

1993 ◽  
Vol 207 (4) ◽  
pp. 307-315
Author(s):  
I P Gilbert ◽  
A R Heath ◽  
I D Johnstone
Keyword(s):  
Diesel Engine ◽  
Fuel Economy ◽  
Cylinder Head ◽  
High Speed ◽  
Fuel Injection ◽  
Direct Injection ◽  
Selection Strategy ◽  
Design Challenge ◽  
Hsdi Diesel Engine ◽  
High Level

The need to increase power, to improve fuel economy and to meet stringent exhaust emissions legislation with a high level of refinement has provided a challenge for the design of a compact high-speed direct injection (HSDI) diesel engine. This paper describes various aspects of cylinder head design with particular consideration of layout and number of valves, valve actuation, port selection strategy, fuel injection systems and cylinder head construction.

Development of Premixed Low-Temperature Diesel Combustion in a HSDI Diesel Engine

2008 ◽  
Author(s):  
Hanho Yun ◽  
Mark Sellnau ◽  
Nebojsa Milovanovic ◽  
Stefan Zuelch
Keyword(s):  
Diesel Engine ◽  
Low Temperature ◽  
Diesel Combustion ◽  
Hsdi Diesel Engine

Experimental Investigation of HCCI Combustion With Reduced Compression Ratio and Narrow Include Angle Injector in a Small DI Diesel Engine

2005 ◽  
Author(s):  
Myung Yoon Kim ◽  
Ki Hyung Lee ◽  
Chang Sik Lee
Keyword(s):  
Experimental Investigation ◽  
Diesel Engine ◽  
Compression Ratio ◽  
Spray Angle ◽  
Injection System ◽  
Experimental Investigations ◽  
Injection Timing ◽  
Diesel Combustion ◽  
Piston Head ◽  
Di Diesel Engine

An experimental investigation was performed on a small direct injection (DI) diesel engine equipped with a common-rail injection system to reduce exhaust emissions through HCCI (homogenous charge compression ignition) combustion. Recently, strict environmental standard requirements call for both lower fuel consumption and reduced emissions that could not be achieved by conventional diesel combustion. In this work experimental investigations to achieve simultaneous reduction of NOx and soot by combustion of more diluted fuel/air mixture before the start of ignition were carried out. To realize this fundamental concept, the experimental conditions including injection timing and EGR rate are varied with the different engine configurations. For reducing the deposition of early injected fuel, spray angle of injector is reduced to 60° and piston head shape also modified to fit with the new injector and to reduce the compression ratio to 15:1 for expanding the ignition delay to form diluted mixture before the ignition. Experimental results show that reduced spray angle with modified piston head allow very low NOx and soot emission level while maintaining the high IMEP of diesel combustion.

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