Enhancing the parameters of starved EHL point conjunctions by artificially induced replenishment

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26210%2F13%3APU104721" target="_blank" >RIV/00216305:26210/13:PU104721 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1016/j.triboint.2013.05.003" target="_blank" >http://dx.doi.org/10.1016/j.triboint.2013.05.003</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.triboint.2013.05.003" target="_blank" >10.1016/j.triboint.2013.05.003</a>

Result language

angličtina

Original language name

Enhancing the parameters of starved EHL point conjunctions by artificially induced replenishment

Original language description

The authors present in this paper a mechanism for enhancing the replenishment in EHL point contacts under extreme starvation. The mechanism of replenishment depends on channeling the available lubricant towards the centerline of the overrolled track by using a flexible slider (scraper) with a micro-slot concentric with the track. The slider accumulates the scraped lubricant to be hydrodynamically entrained through the micro-slot resulting in enriching the depleted track with fresh lubricant. The efficiency of induced replenishment is assessed by measuring the coefficient of friction (COF) and the film thickness over time in a ball-on-disc device. The results show a significant reduction of friction about 31% for oil lubrication and about 25% for greaselubrication after introducing the mechanism of artificially induced replenishment. On the other hand, the central film thickness has been doubled many times for oil and grease lubrication. The optical interferometric images show that the

Czech name

—

Czech description

—

Type

J_x - Unclassified - Peer-reviewed scientific article (Jimp, Jsc and Jost)

CEP classification

JR - Other machinery industry

OECD FORD branch

—

Project

Result was created during the realization of more than one project. More information in the Projects tab.

Continuities

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year

2013

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Tribology International

ISSN

0301-679X

e-ISSN

—

Volume of the periodical

66

Issue of the periodical within the volume

1

Country of publishing house

NL - THE KINGDOM OF THE NETHERLANDS

Number of pages

9

Pages from-to

134-142

UT code for WoS article

—

EID of the result in the Scopus database

—