The Characteristics of Carbon Deposit Formation in Piston Top Ring Groove of Gasoline and Diesel Engine

1998 ◽  
Author(s):  
Joong-Soo Kim ◽  
Byung-Soon Min ◽  
Doo-Soon Lee ◽  
Dae-Yoon Oh ◽  
Jae-Kwon Choi
Keyword(s):  
Diesel Engine ◽  
Carbon Deposit ◽  
Deposit Formation ◽  
Ring Groove

Performance, emissions and carbon deposit characteristics of diesel engine operating on emulsion fuel

Energy ◽  
2018 ◽  
Vol 142 ◽  
pp. 496-506 ◽  
Author(s):  
A.K. Hasannuddin ◽  
W.J. Yahya ◽  
S. Sarah ◽  
A.M. Ithnin ◽  
S. Syahrullail ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Carbon Deposit ◽  
Deposit Characteristics

scholarly journals Research on Optimization Design of SCR Nozzle for National VI Heavy Duty Diesel Engine

Catalysts ◽  
2019 ◽  
Vol 9 (5) ◽  
pp. 452 ◽  
Author(s):  
Feng Qian ◽  
Dong Ma ◽  
Neng Zhu ◽  
Peng Li ◽  
Xiaowei Xu
Keyword(s):  
Diesel Engine ◽  
Conversion Efficiency ◽  
Optimization Design ◽  
Exhaust Pipe ◽  
Heavy Duty ◽  
Deposit Formation ◽  
Nox Conversion ◽  
Heavy Duty Diesel ◽  
Scr System ◽  
Nox Conversion Efficiency

For the National VI heavy-duty diesel vehicles, NOx emission regulations are becoming more and more stringent, and the selective catalytic reduction (SCR) system has become a necessary device. The design of the adblue nozzle in the SCR system is especially critical, directly affecting the NOx conversion efficiency and deposit formation. According to the structure of a National VI diesel engine exhaust pipe and SCR system, the nozzle is optimized by computational fluid dynamics (CFD) method to avoid the collision between the urea droplets and the exhaust pipe wall, to ensure that the exhaust gas and the urea droplets are as much as possible in full contact to ensure a sufficient urea pyrolysis. With the optimized nozzle, the NH3 distribution uniformity of the inlet face of the SCR catalyst can increase from 0.58 to 0.92. Additionally, test verifications are implemented based on the spray particle size test and the engine bench tests; the results show that the Sauter mean diameter of the optimized nozzle is more decreased than the initial nozzle and that the NOx conversion efficiency of the World Harmonized Transient Cycle (WHTC) and World Harmonized Stationary Cycle (WHSC) cycle improves by nearly 3%; additionally, it can also avoid deposit formation.

Standard allowable limit for carbon-deposit formation in diesel engines

1975 ◽  
Vol 11 (10) ◽  
pp. 815-817
Author(s):  
S. M. Muzikus ◽  
M. I. Fedorov ◽  
E. I. Frolov
Keyword(s):  
Diesel Engines ◽  
Carbon Deposit ◽  
Deposit Formation ◽  
Allowable Limit

The Impact of Diesel Engine Lubricants on Deposit Formation in Diesel Particulate Filters

2003 ◽  
Author(s):  
Y. Takeuchi ◽  
S. Hirano ◽  
M. Kanauchi ◽  
H. Ohkubo ◽  
M. Nakazato ◽  
...  
Keyword(s):  
Diesel Engine ◽  
Deposit Formation ◽  
Diesel Particulate ◽  
Diesel Particulate Filters ◽  
Particulate Filters ◽  
The Impact

Effects of alkyllead antiknock agents and scavengers on carbon deposit formation in engines

1983 ◽  
Vol 19 (3) ◽  
pp. 129-131
Author(s):  
G. G. Shifrin ◽  
A. A. Gureev ◽  
V. V. Sokolov ◽  
B. P. Kitskii ◽  
S. R. Lebedev
Keyword(s):  
Carbon Deposit ◽  
Deposit Formation ◽  
Antiknock Agents
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