An Analysis of Intake Valve Deposits from Gasolines Containing Polycyclic Aromatics

1991 ◽  
Author(s):  
Bruce G. Bunting
Keyword(s):  
Intake Valve ◽  
Polycyclic Aromatics

A Study on Combustion Characteristics of Spark-Ignited Engine with Different Late Intake Valve Closing for Miller Cycle

2015 ◽  
Vol 20 (3) ◽  
pp. 141-148
Author(s):  
J.H. Chung ◽  
S.J. Kang ◽  
J.S. Kim ◽  
S.C. Jeong ◽  
J.W. Lee
Keyword(s):  
Combustion Characteristics ◽  
Miller Cycle ◽  
Intake Valve

Analysis of intake swirl in a compression ignition engine at different intake valve lifts

2021 ◽  
Author(s):  
Prashant Kumar ◽  
Ashok Darsigunta ◽  
B. Chandra Mouli ◽  
Vinod Kumar Sharma ◽  
Neeraj Sharma ◽  
...  
Keyword(s):  
Compression Ignition ◽  
Intake Valve ◽  
Compression Ignition Engine ◽  
Intake Swirl

Comparing methods for improving spark-ignited engine efficiency: Over-expansion with multi-link cranktrain and high compression ratio with late intake valve closing

2020 ◽  
Vol 262 ◽  
pp. 114560 ◽  
Author(s):  
Zhuyong Yang ◽  
Niranjan Miganakallu ◽  
Tyler Miller ◽  
Jeremy Worm ◽  
Jeffrey Naber ◽  
...  
Keyword(s):  
Compression Ratio ◽  
Intake Valve ◽  
High Compression Ratio ◽  
Engine Efficiency ◽  
High Compression

Preparation and luminescence properties of isoquinoline-nucleated polycyclic aromatics

2020 ◽  
Vol 172 ◽  
pp. 107803 ◽  
Author(s):  
Yanmei Li ◽  
Xinyu Li ◽  
Tianzhi Yu ◽  
Wenming Su ◽  
Youjia Wang ◽  
...  
Keyword(s):  
Luminescence Properties ◽  
Polycyclic Aromatics

Selective Detection of Dibenzodioxin, Dibenzofuran and Some Small Polycyclic Aromatics

1998 ◽  
Vol 134 (1-6) ◽  
pp. 139-163 ◽  
Author(s):  
J. Velazquez ◽  
L. A. Voloboueva ◽  
T. A. Cool
Keyword(s):  
Selective Detection ◽  
Polycyclic Aromatics

Post Fuel Injection Fuel Vaporization Characteristics in the Intake Port of a Port-Fuel-Injected Gasoline CFR Engine

2006 ◽  
Author(s):  
Jim S. Cowart ◽  
Leonard J. Hamilton
Keyword(s):  
Gasoline Engine ◽  
Fuel Injection ◽  
Fuel Vapor ◽  
Intake Port ◽  
Fuel Injector ◽  
Intake Valve ◽  
Inlet Port ◽  
Fuel Vaporization ◽  
Control Computer ◽  
Vapor Sampling

A Cooperative Fuels Research (CFR) gasoline engine has been modified to run on computer controlled Port Fuel Injection (PFI) and electronic ignition. Additionally a fast acting sampling valve (controlled by the engine control computer) has been placed in the engine’s intake system between the fuel injector and cylinder head in order to measure the fuel components that are vaporizing in the intake port immediately after the fuel injection event, and separately during the intake valve open period. This is accomplished by fast sampling a small portion of the intake port gases during a specified portion of the engine cycle which are then analyzed with a gas chromatograph. Experimental mixture preparation results as a function of inlet port temperature and pressure are presented. As the inlet port operates at higher temperatures and lower manifold pressures more of the injected fuels’ heavier components evolve into the vapor form immediately after fuel injection. The post-fuel injection fuel-air equivalence ratio in the intake port is characterized. The role of the fuel injection event is to produce from 1/4 to slightly over 1/2 of the combustible fuel-air mixture needed by the engine, as a function of port temperature. Fuel vapor sampling during the intake valve open period suggests that very little fuel is vaporizing from the intake port puddle below the fuel injector. In-cylinder fuel vapor sampling shows that significant fuel vapor generation must occur in the lower intake port and intake valve region.

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