Invention Grant
- Patent Title: Rotary shaft sealing assembly
- Patent Title (中): 旋转轴密封组件
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Application No.: US12886364Application Date: 2010-09-20
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Publication No.: US08505924B2Publication Date: 2013-08-13
- Inventor: Lannie L. Dietle , John E. Schroeder , Manmohan S. Kalsi , Patricio D. Alvarez
- Applicant: Lannie L. Dietle , John E. Schroeder , Manmohan S. Kalsi , Patricio D. Alvarez
- Applicant Address: US TX Sugar Land
- Assignee: Kalsi Engineering, Inc.
- Current Assignee: Kalsi Engineering, Inc.
- Current Assignee Address: US TX Sugar Land
- Agency: Andrews Kurth LLP
- Agent Douglas W. Rommelmann
- Main IPC: F16J15/32
- IPC: F16J15/32

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.
Public/Granted literature
- US20110006484A1 ROTARY SHAFT SEALING ASSEMBLY Public/Granted day:2011-01-13
Information query
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