dc.contributor.author	Talluri, Srikrishna	en
dc.contributor.committeechair	Furey, Michael J.	en
dc.contributor.committeemember	Kirk, R. Gordon	en
dc.contributor.committeemember	Eiss, Norman S. Jr.	en
dc.contributor.department	Mechanical Engineering	en
dc.date.accessioned	2014-03-14T20:49:18Z	en
dc.date.adate	2000-12-13	en
dc.date.available	2014-03-14T20:49:18Z	en
dc.date.issued	2000-11-06	en
dc.date.rdate	2001-12-13	en
dc.date.sdate	2000-12-11	en
dc.description.abstract	"Hot-tests" form a vital facet towards the end of the production line of modern automotive plants, where the condition of the engine is checked by running it for a short period of time, to ensure its performance under standard operating conditions. The duration of hot-tests for small engines varies from 20-75 seconds. In the conventional procedure, about 10-30 grams of lubricant (for pre-coating) is used with about 650ml of standard oil for engine testing. However, about 1-3 oz. of oil is lost per engine, as it cannot be sucked out of the crankcase after the hot tests. The loss of 1-3 oz. of oil leads to a significant loss in revenue, over the large number of engines manufactured. It also causes a potential safety and environmental hazard due to leakage of lubricant during shipping or upon first use in a particular application. The goal of this project is to conduct "no-oil" hot tests using less than 10 grams of specially formulated lubricants for pretreatment. Implementation of this procedure for conducting the hot tests in the manufacturing facility would save revenue and eliminate potential hazards mentioned above in addition to cutting down on manpower and/or machinery used for handling the engine oil. An experimental study of pre-treatment of interacting interfaces of engine components, with specially formulated lubricants, for no-oil hot tests is presented. This study includes sixteen tests performed on the production line of Tecumseh's small engine manufacturing plant. The formulated lubricants were made up of tribopolymer formers, i.e., monomers, which were used in previous tribopolymerization studies. Tribopolymerization is defined as the planned or intentional formation of protective polymeric films directly and continuously on rubbing surfaces to reduce damage and wear by the use of minor concentrations of selected compounds capable of forming polymeric films in situ. This study entailed the investigation of the anti-wear properties of the formulated lubricants on a high temperature pin-on-disk machine and subsequent selection of lubricants exhibiting superior performance for use in the engine tests. The no-oil hot-tests performed at Virginia Tech and on the assembly line exhibited the superior anti-scuffing/anti-wear properties of the specially formulated lubricants, to warrant their use on the production line in the near future.	en
dc.description.degree	Master of Science	en
dc.identifier.other	etd-12112000-144337	en
dc.identifier.sourceurl	http://scholar.lib.vt.edu/theses/available/etd-12112000-144337/	en
dc.identifier.uri	http://hdl.handle.net/10919/36058	en
dc.publisher	Virginia Tech	en
dc.relation.haspart	04_Discussion.pdf	en
dc.relation.haspart	06_Recommendations.pdf	en
dc.relation.haspart	03_Pin_on_disk_tests.pdf	en
dc.relation.haspart	02_Engine_Tests.pdf	en
dc.relation.haspart	07_References.pdf	en
dc.relation.haspart	05_Conclusions.pdf	en
dc.relation.haspart	01_Intro.pdf	en
dc.rights	In Copyright	en
dc.rights.uri	http://rightsstatements.org/vocab/InC/1.0/	en
dc.subject	engine lubrication	en
dc.subject	running in	en
dc.subject	lubrication	en
dc.subject	bench test	en
dc.subject	internal combustion	en
dc.subject	friction	en
dc.subject	tribology	en
dc.title	Pretreatment of Small Four-Stroke Engine Components for No-Oil Hot Tests	en
dc.type	Thesis	en
thesis.degree.discipline	Mechanical Engineering	en
thesis.degree.grantor	Virginia Polytechnic Institute and State University	en
thesis.degree.level	masters	en
thesis.degree.name	Master of Science	en

Pretreatment of Small Four-Stroke Engine Components for No-Oil Hot Tests

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