9539275 Diesel combustion improvement with high pressure fuel injection — Application of small diameter combustion chamber and high swirl Yasuhiro Tabata, Yoshinaka Takeda, Keiichi Niimura (New ACE Institute Co., Ltd.)

JSAE Review ◽  
1996 ◽  
Vol 17 (1) ◽  
pp. 88
Keyword(s):  
High Pressure ◽  
Combustion Chamber ◽  
Fuel Injection ◽  
Small Diameter ◽  
Diesel Combustion

Behavior of Band Spectra in Diesel Combustion Flames: A Study on Chemical Reactions in Diesel Combustion

1988 ◽  
Vol 110 (3) ◽  
pp. 393-398 ◽  
Author(s):  
K. Nagase ◽  
K. Funatsu
Keyword(s):  
Diesel Engine ◽  
Optical Fiber ◽  
Combustion Chamber ◽  
Chemical Reactions ◽  
Fuel Injection ◽  
Diesel Combustion ◽  
Fiber Probe ◽  
Precombustion Chamber ◽  
Optical Fiber Probe ◽  
Band Spectra

When a precombustion chamber type Diesel engine is operated under light loads and at low speeds, it is observed that the ignition flames in its main combustion chamber are generated in several stages under specific conditions of fuel injection. The authors, by observing the multistage ignition flames through an optical fiber probe inserted into the chamber, confirmed a number of band spectra emitted from some substances and CH radicals, existing in the flames, and have made clear some aspects of the chemical reactions taking place in Diesel combustion.

NOx Reduction from Diesel Combustion Using Pilot Injection with High Pressure Fuel Injection

1992 ◽  
Author(s):  
Shigeru Shundoh ◽  
Masanori Komori ◽  
Kinji Tsujimura ◽  
Shinji Kobayashi
Keyword(s):  
High Pressure ◽  
Fuel Injection ◽  
Nox Reduction ◽  
Pilot Injection ◽  
Diesel Combustion

Flow Dynamics of Charge Stratification in Small GDI Two-Stroke Engines

2002 ◽  
Author(s):  
Stefania Zanforlin ◽  
Roberto Gentili ◽  
Pierluigi Dell’Orto
Keyword(s):  
High Pressure ◽  
Combustion Chamber ◽  
Liquid Fuel ◽  
Fuel Injection ◽  
Flow Dynamics ◽  
Mixing Process ◽  
Stratified Charge ◽  
Fuel Distribution ◽  
Multidimensional Modelling ◽  
Partial Loads

Direct high-pressure liquid fuel injection is able to control the mixing process inside the cylinder for getting either stratified charge at partial loads or quasi-homogeneous conditions, as it is required at full load. This paper shows the development of this solution for small two-stoke engines, using multidimensional modelling. The aim is investigating how the design of scavenging ducts and combustion chamber influences charge stratification behaviour, taking into account fuel distribution and stratification stability varying engine load and speed.

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