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Title: Rotary shaft sealing assembly

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.
 [1] ;  [2] ;  [1] ;  [2]
  1. (Houston, TX)
  2. (Richmond, TX)
Publication Date:
OSTI Identifier:
Report Number(s):
US Patent Application 10/982,821
DOE Contract Number:
Resource Type:
Research Org:
Kalsi Engineering, Inc. (Sugar Land, TX)
Sponsoring Org:
Country of Publication:
United States