Intake Flow Predictions of a Transparent DI Diesel Engine

1998 ◽  
Author(s):  
A Chen ◽  
A Veshagh ◽  
S Wallace

The article takes a gander at inevitable results of logical leisure with whirl enhancing modifications on a right away Injection diesel engine. 4 holes at a diversion over every chamber with estimations of the outlet start from 2, 2.five, 3 and 3.5 mm are through within the chamber with affordable tendency concerning the chamber center factor Numerical guesses are the first-class change to provide clean enduring of the fluid circulate wonder in a DI Diesel Engine. outcomes discover that the unessential beginning of two.five mm (2nd) bypass on an unequalled begin and excessive weight. Spin development just motor vitality massiveness increment with the changing starting widths. The chamber with 2.five mm establishing make a most vital execution improvement while the chambers with excessive broadness than second hole bypass on a to a few diploma chop down execution. whilst the development in partition transversely over develops the move discipline characteristics like spin, the execution decays beyond 2.five mm. considering the execution attitude an ensuing hole gives improved ingesting and finally most outrageous load for the proportional gas implanted. alternate ultimate holes have to a few diploma more fiery debris launch. in view that numerical results exhibited that ensuing hole offers a transcendent. Of all of the splendid numerical modifications the resultant chamber gives stepped forward presentation and lessens the fee and dreary experimentation tests.


2011 ◽  
Vol 130-134 ◽  
pp. 95-98 ◽  
Author(s):  
Xi Xin ◽  
De Xin Liu ◽  
Liu Qing Wang ◽  
Li Wang

This paper developed a new design of variable swirl intake manifolds for four-valve DI diesel engine by setting swirl control valves in the intake manifolds. The 3-D numerical model under the same experimental condition was established and particular flow information in intake manifolds and cylinder was achieved. Influence of variable swirl intake manifolds on intake flow characteristics and in-cylinder swirl characteristics were analyzed. The simulation results show that the swirl intensity in cylinder can be tuned by this device. The swirl intensity increases gradually with decrease flow coefficient and it can meet the requirements of swirl intensity for different operating conditions.


2021 ◽  
Vol 220 ◽  
pp. 106901
Author(s):  
Ahmad O. Hasan ◽  
Ahmed I. Osman ◽  
Ala'a H. Al-Muhtaseb ◽  
Hani Al-Rawashdeh ◽  
Ahmad Abu-jrai ◽  
...  

Author(s):  
S. Ganesan ◽  
S. Mahalingam ◽  
J. SenthilKumar ◽  
J. Hemanandh ◽  
S.P. Venkatesan ◽  
...  

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