0

Full Content is available to subscribers

Subscribe/Learn More  >

Investigation of a Unique Macro/Micro Laser Machined Feature for Mechanical Face Seals With Low Leakage, Low Friction, and Low Wear

[+] Author Affiliations
Lionel Young, Joshua Benedict, John Davis

Flowserve Corporation, Temecula, CA

Paper No. IJTC2011-61092, pp. 211-214; 4 pages
doi:10.1115/IJTC2011-61092
From:
  • ASME/STLE 2011 International Joint Tribology Conference
  • ASME/STLE 2011 Joint Tribology Conference
  • Los Angeles, California, USA, Oct 24–26, 2011
  • ISBN: 978-0-7918-5474-7
  • Copyright © 2011 by ASME

abstract

Numerous studies have been conducted to evaluate the effects of micro dimple surface texturing on friction reduction in mechanical seals [1–7]. Optimum ratios for a dimple configuration, depth (h) to diameter (D) (Fig. 1), range from 0.02 to 0.5, and area density ratio, ratio of dimple area to seal face area, range from 20 to 55%. Within this range it has been shown that friction can be reduced by as much as 50%. These studies indicate that if the ratio of depth to dimple diameter is reduced below 0.02 a dramatic reduction in performance is seen. Also observed in one investigation [8] is the possibility that micro dimples can become filled with debris. This may degrade performance over time. This report will show that with the use of a unique macro/micro feature it is possible to achieve a reduction in friction of 65%, significantly lower face temperature, exhibit debris resistance, showing low to zero measureable leakage, and low to zero wear when compared to an untextured seal face. The term macro/micro feature is used to describe a feature that has a depth to size ratio, h/L (Fig.2), which is two orders of magnitude smaller than current dimple configurations, well below what may be considered useful from a performance standpoint. This new macro/micro feature, a tapered channel, demonstrates significant cavitation affects as well as hydrodynamic load support. These features are believed to be responsible for its low leakage as well as it low friction/wear characteristics.

Copyright © 2011 by ASME
Topics: Friction , Wear , Lasers , Leakage

Figures

Tables

Interactive Graphics

Video

Country-Specific Mortality and Growth Failure in Infancy and Yound Children and Association With Material Stature

Use interactive graphics and maps to view and sort country-specific infant and early dhildhood mortality and growth failure data and their association with maternal

NOTE:
Citing articles are presented as examples only. In non-demo SCM6 implementation, integration with CrossRef’s "Cited By" API will populate this tab (http://www.crossref.org/citedby.html).

Some tools below are only available to our subscribers or users with an online account.

Related Content

Customize your page view by dragging and repositioning the boxes below.

Related eBook Content
Topic Collections

Sorry! You do not have access to this content. For assistance or to subscribe, please contact us:

  • TELEPHONE: 1-800-843-2763 (Toll-free in the USA)
  • EMAIL: asmedigitalcollection@asme.org
Sign In