The 2-Stroke DI-Diesel Engine with Common Rail Injection for Passenger Car Application

1998 ◽  
Author(s):  
J. Abthoff ◽  
F. Duvinage ◽  
T. Hardt ◽  
M. Krämer ◽  
M. Paule
Keyword(s):  
Diesel Engine ◽  
Common Rail ◽  
Passenger Car ◽  
Common Rail Injection ◽  
Di Diesel Engine

Visualization of the Effects of Post Injection and Swirl on the Combustion Process of a Passenger Car Common Rail DI Diesel Engine

2003 ◽  
Author(s):  
Arjan Helmantel ◽  
Joop Somhorst ◽  
Ingemar Denbratt
Keyword(s):  
Diesel Engine ◽  
Combustion Chamber ◽  
Flame Temperature ◽  
Combustion Process ◽  
Small Diameter ◽  
Ccd Camera ◽  
Common Rail ◽  
Post Injection ◽  
Passenger Car ◽  
Di Diesel Engine

The effects of variations in injection strategy and swirl on a DI Diesel engine performance and emissions were tested. The cylinder head was fitted with a small diameter endoscope, coupled with a triggered CCD camera, in order to study the effect of these variations on the combustion process. The images that were taken of the combustion process were used to calculate the spatial and temporal distribution of flame temperature and soot kks factor by using the 2-color method. The engine used in the experiments is a single cylinder version of a modern, passenger car type, common rail Diesel engine with a displacement of 480 cc. The fitted endoscope caused very little interference with the combustion chamber due to its small dimensions. The 65 degree angle view of the endoscope allowed coverage of a large portion of the entire combustion chamber. The combustion images and derived temperatures and soot concentrations were used to study the influence of post injection and high swirl. Adding a third (post) injection to the pilot and main injection increases the mixing and the flame temperature during the second half of the combustion process, thereby improving soot oxidation. The fuel efficiency was not negatively affected by the later phasing of part of the heat release. Increased swirl of the intake air was also studied. An 80% increase in swirl-ratio was achieved by closing off one of the two intake ports with a butterfly valve. The improved mixing gave significant reductions in soot emissions, with a small increase in NOx formation.

Study of the Combustion System of a New Small DI Diesel Engine with Advanced Common Rail Injection System

2003 ◽  
Author(s):  
Felice E. Corcione ◽  
Bianca M. Vaglieco ◽  
Giuseppe E. Corcione ◽  
M. Lavorgna ◽  
Rosario Lanzafame
Keyword(s):  
Diesel Engine ◽  
Common Rail ◽  
Injection System ◽  
Combustion System ◽  
Common Rail Injection System ◽  
Common Rail Injection ◽  
Di Diesel Engine

Experimental and Computational Analysis of Different EGR Systems for a Common Rail Passenger Car Diesel Engine

2009 ◽  
Vol 2 (1) ◽  
pp. 527-538 ◽  
Author(s):  
F. Millo ◽  
C. V. Ferraro ◽  
M. Gianoglio Bernardi ◽  
S. Barbero ◽  
P. Pasero
Keyword(s):  
Diesel Engine ◽  
Computational Analysis ◽  
Common Rail ◽  
Passenger Car

Ion Current, Combustion and Emission Characteristics in an Automotive Common Rail Diesel Engine

2012 ◽  
Vol 134 (4) ◽  
Author(s):  
Naeim A. Henein ◽  
Tamer Badawy ◽  
Nilesh Rai ◽  
Walter Bryzik
Keyword(s):  
Diesel Engine ◽  
Diesel Engines ◽  
Direct Injection ◽  
Common Rail ◽  
Ion Current ◽  
Injection System ◽  
Feedback Signal ◽  
Common Rail Injection System ◽  
Common Rail Injection ◽  
No Emissions

Advanced electronically controlled diesel engines require a feedback signal to the ECU to adjust different operating parameters and meet demands for power, better fuel economy and low emissions. Different types of in-cylinder combustion sensors are being considered to produce this signal. This paper presents results of an experimental investigation on the characteristics of the ion current in an automotive diesel engine equipped with a common rail injection system. The engine is a 1.9 L, 4-cylinder, direct injection diesel engine. Experiments covered different engine loads and injection pressures. The relationships between the ion current, combustion parameters and engine out NO emissions and opacity are presented. The analysis of the experimental data identified possible sources of the ion current produced in diesel engines.

AKONDIES — An exhaust concept for a Euro IV passenger car DI diesel engine (II)

MTZ worldwide ◽  
2003 ◽  
Vol 64 (12) ◽  
pp. 41-44
Author(s):  
Christian Knab ◽  
Kurt Weidmann ◽  
Hans-Ulrich Franke ◽  
Carsten Jutka ◽  
Helmut Tschöke ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Passenger Car ◽  
Di Diesel Engine
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