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:
-
- Houston, TX
- 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 = {Tue Sep 21 00:00:00 EDT 2010},
month = {Tue Sep 21 00:00:00 EDT 2010}
}
Works referenced in this record:
A Novel High-Pressure Rotary Shaft Seal Facilitates Innovations in Drilling and Production Equipment
conference, April 2013
- Kalsi, M. S.; Conroy, W. T.; Dietle, L. L.
- SPE/IADC Drilling Conference