Rotary shaft sealing assembly
Patent
·
OSTI ID:1093224
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.
- Research Organization:
- Kalsi Engineering, Inc. (Sugar Land, TX)
- Sponsoring Organization:
- USDOE
- Assignee:
- Kalsi Engineering, Inc. (Sugar Land, TX)
- Patent Number(s):
- 8,505,924
- Application Number:
- 12/886,364
- OSTI ID:
- 1093224
- Country of Publication:
- United States
- Language:
- English
A Novel High-Pressure Rotary Shaft Seal Facilitates Innovations in Drilling and Production Equipment
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conference | April 2013 |
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