The Effect of Injector and Intake Port Design on In-Cylinder Fuel Droplet Distribution, Airflow and Lean Burn Performance for a Honda VTEC-E Engine

1996 ◽  
Author(s):  
N. E. Carabateas ◽  
A. M. K. P. Taylor ◽  
J. H. Whitelaw ◽  
Kiyoshi Ishii ◽  
Kazuo Yoshida ◽  
...  
Keyword(s):  
Intake Port ◽  
Fuel Droplet ◽  
Lean Burn ◽  
Droplet Distribution ◽  
Port Design

scholarly journals A Design of the Compression Chamber and Optimization of the Sealing of a Novel Rotary Internal Combustion Engine Using CFD

Energies ◽  
2020 ◽  
Vol 13 (9) ◽  
pp. 2362
Author(s):  
Savvas Savvakis ◽  
Dimitrios Mertzis ◽  
Elias Nassiopoulos ◽  
Zissis Samaras
Keyword(s):  
Internal Combustion Engine ◽  
Cfd Simulation ◽  
Combustion Engine ◽  
Numerical Study ◽  
Simulation Models ◽  
Internal Combustion ◽  
Intake Port ◽  
Significant Difference ◽  
Port Design ◽  
Compression Chamber

The current paper investigates two particular features of a novel rotary split engine. This internal combustion engine incorporates a number of positive advantages in comparison to conventional reciprocating piston engines. As a split engine, it is characterized by a significant difference between the expansion and compression ratios, the former being higher. The processes are decoupled and take place simultaneously, in different chambers and on the different sides of the rotating pistons. Initially, a brief description of the engine’s structure and operating principle is provided. Next, the configuration of the compression chamber and the sealing system are examined. The numerical study is conducted using CFD simulation models, with the relevant assumptions and boundary conditions. Two parameters of the compression chamber were studied, the intake port design (initial and optimized) and the sealing system size (short and long). The best option was found to be the combination of the optimized intake port design with the short seal, in order to keep the compression chamber as close as possible to the engine shaft. A more detailed study of the sealing system included different labyrinth geometries. It was found that the stepped labyrinth achieves the highest sealing efficiency.

Effect of Intake Port Design on the Flow Field Stability of a Gasoline DI Engine

2011 ◽  
Author(s):  
Philipp Adomeit ◽  
Markus Jakob ◽  
Stefan Pischinger ◽  
Andre Brunn ◽  
Jens Ewald
Keyword(s):  
Flow Field ◽  
Intake Port ◽  
Port Design

Optimization of the intake port shape for a five-valve gasoline engine

2001 ◽  
Vol 215 (6) ◽  
pp. 739-746 ◽  
Author(s):  
K Lee ◽  
C Lee ◽  
Y Joo
Keyword(s):  
High Efficiency ◽  
Gasoline Engine ◽  
Three Dimensional ◽  
Design Guidelines ◽  
Design Parameters ◽  
Computer Assisted ◽  
Intake Port ◽  
Port Design ◽  
Visualization Experiments ◽  
Valve Engine

For the development of a high efficiency gasoline engine, the optimization of the intake port shape for a five-valve engine has been studied. Intake multivalve cylinder heads were manufactured by using a three-dimensional computer-assisted design program, and steady state flow experiments and flow visualization experiments have been performed with these cylinder heads. The five-valve engines, which have larger valve opening areas, have larger intake flowrates and higher tumble ratios than the four-valve engines. The effects of intake port design parameters of a five-valve engine on the intake flowrate and tumble were studied, and the design guidelines for the five-valve engines were established.

Effects of Intake Port Design and Valve Lift on In-Cylinder Flow and Burnrate

1987 ◽  
Author(s):  
J. C. Kent ◽  
M. Haghgooie ◽  
A. Mikulec ◽  
G. C. Davis ◽  
R. J. Tabaczynski
Keyword(s):  
Valve Lift ◽  
Intake Port ◽  
Port Design ◽  
Cylinder Flow
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