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Skew And Twist Resistant Hydrodynamic Rotary Shaft Seal

Patent ·
OSTI ID:879575
A hydrodynamically lubricated squeeze packing type rotary shaft seal suitable for lubricant retention and environmental exclusion which incorporates one or more resilient protuberances which and cooperate with the gland walls to hold the seal straight in its installation groove in unpressurized and low pressure lubricant retention applications thereby preventing skew-induced wear caused by impingement of abrasive contaminants present in the environment, and which also serve as radial bearings to prevent tipping of the seal within its installation gland. Compared to prior art, this invention provides a dramatic reduction of seal and shaft wear in abrasive environments and provides a significant increase in seal life.
Research Organization:
Kalsi Engineering, Inc. (Sugarland, TX)
DOE Contract Number:
FG03-90ER80939
Assignee:
Kalsi Engineering, Inc. (Sugar Land, TX)
Patent Number(s):
US 6036192
Application Number:
09/250528
OSTI ID:
879575
Country of Publication:
United States
Language:
English

References (1)

Wear of elastomeric seals in abrasive slurries journal September 1998

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