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Title: Rotary shaft sealing assembly

Abstract

A rotary shaft sealing assembly in which a first fluid is partitioned from a second fluid in a housing assembly having a rotary shaft located at least partially within. In one embodiment a lip seal is lubricated and flushed with a pressure-generating seal ring preferably having an angled diverting feature. The pressure-generating seal ring and a hydrodynamic seal may be used to define a lubricant-filled region with each of the seals having hydrodynamic inlets facing the lubricant-filled region. Another aspect of the sealing assembly is having a seal to contain pressurized lubricant while withstanding high rotary speeds. Another rotary shaft sealing assembly embodiment includes a lubricant supply providing a lubricant at an elevated pressure to a region between a lip seal and a hydrodynamic seal with a flow control regulating the flow of lubricant past the lip seal. The hydrodynamic seal may include an energizer element having a modulus of elasticity greater than the modulus of elasticity of a sealing lip of the hydrodynamic seal.

Inventors:
; ; ;
Issue Date:
Research Org.:
Kalsi Engineering, Inc. (Sugar Land, TX)
Sponsoring Org.:
USDOE
OSTI Identifier:
1093224
Patent Number(s):
8,505,924
Application Number:
12/886,364
Assignee:
Kalsi Engineering, Inc. (Sugar Land, TX)
DOE Contract Number:  
ACO3-90ER80939
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
42 ENGINEERING

Citation Formats

Dietle, Lannie L, Schroeder, John E, Kalsi, Manmohan S, and Alvarez, Patricio D. Rotary shaft sealing assembly. United States: N. p., 2013. Web.
Dietle, Lannie L, Schroeder, John E, Kalsi, Manmohan S, & Alvarez, Patricio D. Rotary shaft sealing assembly. United States.
Dietle, Lannie L, Schroeder, John E, Kalsi, Manmohan S, and Alvarez, Patricio D. Tue . "Rotary shaft sealing assembly". United States. https://www.osti.gov/servlets/purl/1093224.
@article{osti_1093224,
title = {Rotary shaft sealing assembly},
author = {Dietle, Lannie L and Schroeder, John E and Kalsi, Manmohan S and Alvarez, Patricio D},
abstractNote = {A rotary shaft sealing assembly in which a first fluid is partitioned from a second fluid in a housing assembly having a rotary shaft located at least partially within. In one embodiment a lip seal is lubricated and flushed with a pressure-generating seal ring preferably having an angled diverting feature. The pressure-generating seal ring and a hydrodynamic seal may be used to define a lubricant-filled region with each of the seals having hydrodynamic inlets facing the lubricant-filled region. Another aspect of the sealing assembly is having a seal to contain pressurized lubricant while withstanding high rotary speeds. Another rotary shaft sealing assembly embodiment includes a lubricant supply providing a lubricant at an elevated pressure to a region between a lip seal and a hydrodynamic seal with a flow control regulating the flow of lubricant past the lip seal. The hydrodynamic seal may include an energizer element having a modulus of elasticity greater than the modulus of elasticity of a sealing lip of the hydrodynamic seal.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {2013},
month = {8}
}

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