Engine Valve Stem Seal II, Improved Lip with PTFE Layer for Oil Leakage Control A.R.S. Manufacturing, Incorporated

Format:

Conference/Event

Author/Creator:

Silan, Murat N., author.

Conference Name:

SAE International Congress & Exposition (1997-02-24 : Detroit, Michigan, United States)

Language:

English

Physical Description:

1 online resource

Place of Publication:

Warrendale, PA SAE International 1997

Summary:

It was presented in the previous paper (1) that oil leakage from valve stem seal (VSS) can be controlled by design and the characteristics of the newly designed composite VSS with a filled polyetrafluoroethylene (PTFE) layer lip are:It was also reported that oil leakage for lubrication can be determined by the stress distribution across the seal lip contact width touching the valve stem under a certain interference. However, the variable pressure inside Intake and Exhaust ports of an engine will affect the stress distribution of the seal lip causing the change in oil leakage.This report presents the design evaluation method and results of the improved VSS with filled PTFE layer lip which keeps the oil leakage constant even though the inside pressure of the engine port changes

Notes:

Vendor supplied data

Publisher Number:

970548

Access Restriction:

Restricted for use by site license