How Individual Valve Timing Events Affect Exhaust Emissions

1971 ◽  
Author(s):  
Robert M. Siewert
Keyword(s):  
Exhaust Emissions ◽  
Valve Timing ◽  
Timing Events

Paper 4: The Effect of Combustion Chamber Shape and Other Engine Design Factors on Exhaust Emissions

1968 ◽  
Vol 183 (5) ◽  
pp. 133-144 ◽  
Author(s):  
P. L. Dartnell ◽  
C. L. Goodacre ◽  
P. V. Lamarque
Keyword(s):  
Combustion Chamber ◽  
Engine Performance ◽  
Exhaust System ◽  
Exhaust Emissions ◽  
Intake Manifold ◽  
Valve Timing ◽  
Mixture Formation ◽  
Engine Design ◽  
Basic Engine ◽  
Design Factors

A Heron combustion chamber engine of 2 litre capacity has been utilized to investigate the effect of combustion chamber shape, increased mixture movement, valve timing, mixture formation, and reaction in the exhaust system on engine performance and level of exhaust emissions using the seven-mode U.S. Federal cycle. Such factors as carburettor weakening and limitation of intake manifold vacuum during overrun have been included in this investigation, and it has been shown that it is possible to reduce exhaust emissions and also satisfy the current U.S. requirements with an engine giving acceptable performance, improved economy, and unaffected reliability. Much of the information reported may be negative in terms of improvement to exhaust emissions by detailed engine design. Nevertheless, some positive conclusions have been reached as a result of this work, and it is hoped that this will draw forth more informed discussion than the authors have been able to assemble from the work attempted with one basic engine.

On-Road Exhaust Emissions from Passenger Cars Fitted with a Start-Stop System

2011 ◽  
Vol 23 (1) ◽  
Author(s):  
Jerzy Merkisz ◽  
Ireneusz Pielecha ◽  
Jacek Pielecha ◽  
Kamil Brudnicki
Keyword(s):  
Exhaust Emissions ◽  
Passenger Cars

scholarly journals Effect of Types and Gap on Spark Plugs on Exhaust Emissions on the 110CC Double Wheel Vehicles and Its Dissemination Using Website

2018 ◽  
Vol 1114 ◽  
pp. 012097
Author(s):  
Tinus Ginting ◽  
Hotler Manurung ◽  
Astro Julida Harahap ◽  
Erianto Ongko ◽  
H Hartono ◽  
...  
Keyword(s):  
Exhaust Emissions

Study on effects of molecule structure on exhaust emissions from RCCI engine fueled with low alcohol isomers

Fuel ◽  
2021 ◽  
Vol 304 ◽  
pp. 121339
Author(s):  
Weiqiang Han ◽  
Zhenhua Fan ◽  
Chao Jin ◽  
Guoqiang Tang ◽  
Yao Lu ◽  
...  
Keyword(s):  
Exhaust Emissions ◽  
Molecule Structure ◽  
Low Alcohol
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