Study on an Electronically Controlled Common-Rail Injection System for Liquefied Alternative Fuels

2005 ◽  
Author(s):  
Yejian Qian ◽  
Chengji Zuo ◽  
Jian Tan ◽  
Hongming Xu
Keyword(s):  
Alternative Fuels ◽  
Common Rail ◽  
Injection System ◽  
Common Rail Injection System ◽  
Common Rail Injection

Spray Characterization From Common Rail Injection System for Use in Locomotive Engines

2007 ◽  
Author(s):  
Essam El-Hannouny ◽  
Douglas Longman ◽  
Steven McConnell ◽  
Xingbin Xie ◽  
Ming-Chai Lai ◽  
...  
Keyword(s):  
High Speed ◽  
Alternative Fuels ◽  
Operating Conditions ◽  
Common Rail ◽  
Pollutant Emissions ◽  
Injection System ◽  
Emissions Reduction ◽  
Common Rail Injection System ◽  
Spray Structure ◽  
Common Rail Injection

New U.S. Environmental Protection Agency regulations are forcing locomotive manufacturers and railroads to reduce pollutant emissions from locomotive operation. Locomotive engines will be required to meet the applicable standards at the time of original manufacture. A variety of emissions-reduction technologies can be used, such as alternative fuels, additives in lubricant oil, and aftertreatment technologies (e.g., selective catalytic reduction and particulate traps). Emissions reduction can also be accomplished inside the cylinder, using advanced diesel fuel injectors that have a significant impact on the quality of spray and charge preparation before engine combustion and subsequent events. High-speed optical measurements have been collected at elevated ambient pressures for sprays from a modular common rail injection system at Argonne National Laboratory in order to investigate spray structure and dynamics. High-speed laser imaging was used to explore the effects of various parameters on the spray structure. The experimental parameters included were ambient gas density, injection pressure, number of spray holes, injection strategy, and internal orifice size. Spray symmetry and structure were found to depend significantly on the nozzle geometry or manufacturing variances and the operating conditions.

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.

Modeling and Identification of a Gasoline Common Rail Injection System

2014 ◽  
Author(s):  
Remko Baur ◽  
Jan Peter Blath ◽  
Christian Bohn ◽  
Franz Kallage ◽  
Matthias Schultalbers
Keyword(s):  
Common Rail ◽  
Injection System ◽  
Common Rail Injection System ◽  
Common Rail Injection
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