skip to main content
DOE Patents title logo U.S. Department of Energy
Office of Scientific and Technical Information

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:
 [1];  [2];  [1];  [2]
  1. Houston, TX
  2. Richmond, TX
Issue Date:
Research Org.:
Kalsi Engineering, Inc. (Sugar Land, TX)
Sponsoring Org.:
USDOE
OSTI Identifier:
1014676
Patent Number(s):
7798496
Application Number:
US Patent Application 10/982,821
Assignee:
Kalsi Engineering, Inc. (Sugar Land, TX)
Patent Classifications (CPCs):
F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16J - PISTONS {
DOE Contract Number:  
AC03-90ER80939
Resource Type:
Patent
Country of Publication:
United States
Language:
English

Citation Formats

Dietle, Lannie L, Schroeder, John E, Kalsi, Manmohan S, and Alvarez, Patricio D. Rotary shaft sealing assembly. United States: N. p., 2010. 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/1014676.
@article{osti_1014676,
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 = {2010},
month = {9}
}

Patent:

Save / Share:

Works referenced in this record:

A Novel High-Pressure Rotary Shaft Seal Facilitates Innovations in Drilling and Production Equipment
conference, April 2013