Traction drive shaft seal

Details Traction drive shaft seal Traction drive shaft seal

2006-06-06

2006-06-06

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between runner portion and static part

Dynamically created seal

C415S230000, C415S231000, C277S549000, C384S477000

Reexamination Certificate

active

07056087

ABSTRACT:
A rotating shaft seal assembly for a shaft supported for rotation within a housing includes a traction drive rotating a seal ring about the shaft at a speed different from the shaft. The seal ring supports a plurality of seal elements rotated at the speed different from the shaft. The reduced speed of the sealing elements and reduced pressure at each seal reduces the PV level allowing the use of known sealing materials in applications otherwise not within applicable PV levels.

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International Search Report dated Apr. 29, 2005.

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