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Title: Rotary seal with improved film distribution

Abstract

The present invention is a generally circular rotary seal that establishes sealing between relatively rotatable machine components for lubricant retention and environmental exclusion, and incorporates seal geometry that interacts with the lubricant during relative rotation to distribute a lubricant film within the dynamic sealing interface. The features of a variable inlet size, a variable dynamic lip flank slope, and a reduction in the magnitude and circumferentially oriented portion of the lubricant side interfacial contact pressure zone at the narrowest part of the lip, individually or in combination thereof, serve to maximize interfacial lubrication in severe operating conditions, and also serve to minimize lubricant shear area, seal torque, seal volume, and wear, while ensuring retrofitability into the seal grooves of existing equipment.

Inventors:
;
Issue Date:
Research Org.:
Kalsi Engineering, Inc. (Sugar Land, TX)
Sponsoring Org.:
USDOE
OSTI Identifier:
1107339
Patent Number(s):
8,550,467
Application Number:
12/231,348
Assignee:
Kalsi Engineering, Inc. (Sugar Land, TX)
DOE Contract Number:  
FG02-05ER84206
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Dietle, Lannie Laroy, and Schroeder, John Erick. Rotary seal with improved film distribution. United States: N. p., 2013. Web.
Dietle, Lannie Laroy, & Schroeder, John Erick. Rotary seal with improved film distribution. United States.
Dietle, Lannie Laroy, and Schroeder, John Erick. Tue . "Rotary seal with improved film distribution". United States. https://www.osti.gov/servlets/purl/1107339.
@article{osti_1107339,
title = {Rotary seal with improved film distribution},
author = {Dietle, Lannie Laroy and Schroeder, John Erick},
abstractNote = {The present invention is a generally circular rotary seal that establishes sealing between relatively rotatable machine components for lubricant retention and environmental exclusion, and incorporates seal geometry that interacts with the lubricant during relative rotation to distribute a lubricant film within the dynamic sealing interface. The features of a variable inlet size, a variable dynamic lip flank slope, and a reduction in the magnitude and circumferentially oriented portion of the lubricant side interfacial contact pressure zone at the narrowest part of the lip, individually or in combination thereof, serve to maximize interfacial lubrication in severe operating conditions, and also serve to minimize lubricant shear area, seal torque, seal volume, and wear, while ensuring retrofitability into the seal grooves of existing equipment.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {10}
}

Patent:

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