Stator-rotor assembly having surface feature for enhanced...

Rotary kinetic fluid motors or pumps – Bearing – seal – or liner between runner portion and static part – Between axial flow runner and vane or vane diaphragm structure

Reexamination Certificate

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C415S170100

Reexamination Certificate

active

07967559

ABSTRACT:
A stator-rotor assembly which includes at least one interface region between the stator and rotor is described. At least one stator or rotor surface in the interface region includes a pattern of inverted turbulators. The inverted turbulators restrict gas flow through a gap between the stator and the rotor. Various turbomachines which can contain such a stator-rotor assembly are also described. The disclosure also discusses methods to restrict gas flow through gaps in a stator-rotor assembly utilizing the inverted turbulators.

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