Rotary shaft sealing assembly

Dietle, Lannie L; Schroeder, John E; Kalsi, Manmohan S; Alvarez, Patricio D

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:

Dietle, Lannie L ^[1]; Schroeder, John E ^[2]; Kalsi, Manmohan S ^[1]; Alvarez, Patricio D ^[2]

Houston, TX
Richmond, TX

Issue Date:: 2010-09-21

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 {

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F - MECHANICAL ENGINEERING F16 - ENGINEERING ELEMENTS AND UNITS F16J - PISTONS {
F16J15/3244 - with hydrodynamic pumping action
F16J15/3208 - provided with tension elements, e.g. elastic rings
F16J15/008 - {with provision to put out of action at least one sealing

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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.

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                    Dietle, Lannie L, Schroeder, John E, Kalsi, Manmohan S, & Alvarez, Patricio D. Rotary shaft sealing assembly.  United States.

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                    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.

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@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}

}

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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
https://doi.org/10.2118/37627-MS

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Title: Rotary shaft sealing assembly

Abstract

Citation Formats

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

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