Automotive Engine Valve Recession
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Beschreibung
An "Engineering Research Series" title. Valve wear andits effect upon engine performance still presents a major
challenge to the tribologist. Although new valve materials andproduction techniques are constantly being developed, theseadvances have been outpaced by demands for increased engineperformance. The drive for reduced oil consumption and exhaustemissions, use of
lead-replacement and low-sulphur fuels, and the introduction ofalternative fuels such as gas all have implications for valve andseat insert wear.
Automotive Engine Valve Recession aims to provide thereader with a complete understanding of valve recession. Thefundamental nature of contact and wear between valves and valveseats is considered, followed by an outline of the essentialfeatures of valve operation and the potentially serious problemsassociated with wear and valve recession in automobile engines. Anoverview is
then given of an experimental study of valve wear and thedevelopment of special apparatus for the simulation of engineoperating conditions carried out in the School of
Mechanical Engineering, University of Sheffield, UK.
CONTENTS INCLUDE:
* Introduction
* Valve operation and design
* Valve failure
* Analysis of failed components
* Valve and seat wear testing apparatus
* Experimental studies on valve wear
* Design tools for prediction of valve recession andsolving valve failure problems.
Autor*in
Roger Lewis
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