20915 Effect of Fuel Injection Control on Emulsified Fuel Combustion in High Speed Diesel Engine

2013 ◽  
Vol 2013.19 (0) ◽  
pp. 459-460
Author(s):  
Sumito NISHIO ◽  
Zhide XU ◽  
Dong-Hoon YOO
Keyword(s):  
Diesel Engine ◽  
High Speed ◽  
Fuel Injection ◽  
Fuel Combustion ◽  
Emulsified Fuel ◽  
High Speed Diesel ◽  
Injection Control

scholarly journals Effect of Fuel Injection Control on Bio-fuel Combustion in High Speed Diesel Engine

2011 ◽  
Vol 46 (6) ◽  
pp. 902-907 ◽  
Author(s):  
Sumito Nishio ◽  
Zhide Xu ◽  
Masaru Ikame ◽  
Magoshiro Kuwabara
Keyword(s):  
Diesel Engine ◽  
High Speed ◽  
Fuel Injection ◽  
Fuel Combustion ◽  
High Speed Diesel ◽  
Injection Control

Characteristics of injection of diesel fuel, rapeseed oil and their mixtures in diesel engines of various types

2021 ◽  
pp. 167-178
Author(s):  
Keyword(s):  
Diesel Engine ◽  
Diesel Fuel ◽  
Diesel Engines ◽  
Rapeseed Oil ◽  
High Speed ◽  
Fuel Injection ◽  
Experimental Studies ◽  
Fuel Injector ◽  
High Speed Diesel ◽  
Engine Type

The necessity of adapting diesel engines to work on vegetable oils is justified. The possibility of using rapeseed oil and its mixtures with petroleum diesel fuel as motor fuels is considered. Experimental studies of fuel injection of small high-speed diesel engine type MD-6 (1 Ch 8,0/7,5)when using diesel oil and rapeseed oil and computational studies of auto-tractor diesel engine type D-245.12 (1 ChN 11/12,5), working on blends of petroleum diesel fuel and rapeseed oil. When switching autotractor diesel engine from diesel fuel to rapeseed oil in the full-fuel mode, the mass cycle fuel supply increased by 12 %, and in the small-size high-speed diesel engine – by about 27 %. From the point of view of the flow of the working process of these diesel engines, changes in other parameters of the fuel injection process are less significant. Keywords diesel engine; petroleum diesel fuel; vegetable oil; rapeseed oil; high pressure fuel pump; fuel injector; sprayer

Detecting and Correcting Cylinder Imbalance in Direct Injection Engines

2000 ◽  
Vol 123 (3) ◽  
pp. 413-424 ◽  
Author(s):  
M. J. van Nieuwstadt ◽  
I. V. Kolmanovsky
Keyword(s):  
High Pressure ◽  
Diesel Engine ◽  
High Speed ◽  
Fuel Injection ◽  
Direct Injection ◽  
Direct Injection Engines ◽  
High Speed Diesel ◽  
On Line ◽  
Manufacturing Accuracy ◽  
Adaptation Scheme

Modern direct injection engines feature high pressure fuel injection systems that are required to control the fuel quantity very accurately. Due to limited manufacturing accuracy these systems can benefit from an on-line adaptation scheme that compensates for injector variability. Since cylinder imbalance affects many measurable signals, different sensors and algorithms can be used to equalize torque production by the cylinders. This paper compares several adaptation schemes that use different sensors. The algorithms are evaluated on a cylinder-by-cylinder simulation model of a direct injection high speed diesel engine. A proof of stability and experimental results are reported as well.

Studies on Combustion, Vibration, and Noise in High-Speed Diesel Engines Through Newly Developed Measuring Instruments

1988 ◽  
Vol 110 (3) ◽  
pp. 377-384 ◽  
Author(s):  
S. Izumi ◽  
M. Takemi ◽  
M. Ishida ◽  
H. Suetsugu ◽  
T. Maeda ◽  
...  
Keyword(s):  
High Speed ◽  
Thermal Loading ◽  
Fuel Injection ◽  
Injection System ◽  
Measuring Instruments ◽  
True Nature ◽  
Emulsified Fuel ◽  
High Speed Diesel ◽  
Mode Vibration ◽  
Low Levels

The authors have been conducting studies on the reduction of exhaust emissions using a high-speed diesel engine. By applying composite countermeasures consisting of five items: (1) timing retard, (2) optimization of fuel injection system, (3) water-in-oil type emulsified fuel, (4) application of ignition improver, and (5) an increase in airflow quantity, an exhaust NOx level less than half of the original was attained while retaining the original low levels of fuel consumption, smoke density, and engine noise. The authors developed new measuring instruments in order to grasp the true nature of combustion, especially to clarify the delicate change in combustion. By using these instruments, the combustion phenomena were analyzed accurately, speedily, and synthetically on various aspects such as combustion mode, vibration, noise, thermal loading, heat balance, etc. The complicated combustion behavior in the cylinder has been clarified in part by simultaneous measurement of cylinder pressure at several points.

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