FLUID-COOLED MECHANICAL FACE SEAL ROTOR

WIPO Patent Application WO2005040580

A3

A fluid-cooled seal rotor (162) is described for a seal assembly (160) that includes a seal case (166), a seal stator (168), and wherein the rotor (162) has a sealing face on a first side (302) and a heat-transfer structure on a second side. The heat-transfer structure may be a roughened surface. The beat-transfer structure may have protrusions which may be fins, including fins with roughened surfaces. The heat-transfer structure may have additional heat-transfer structures thereon to create complex, including fractal, structures. The fins may be shaped as impellers to move oil over the beat-transfer structure. Channels between fins may have a width greater than twice the boundary layer thickness for the fluid engaged by the fins. The fluid-cooled rotor (162), the seal assembly (160) having the fluid-cooled rotor (162), an air turbine starter having the seal assembly (160), air turbine starters and other machines with rotating shafts using the seal (160) are within the scope of the invention.

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GIESLER WILLIAM L (US)
KINCHELOE TODD A (US)
GECK KELLAN P (US)
LANGSTON TODD A (US)

PCT/US2004/028042

June 09, 2005

August 27, 2004

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HONEYWELL INT INC (US)
GIESLER WILLIAM L (US)
KINCHELOE TODD A (US)
GECK KELLAN P (US)
LANGSTON TODD A (US)

F01D11/00; F02C7/277; F16J15/34; (IPC1-7): F16J15/34; F01D11/00

US5639096A	1997-06-17
US4123069A	1978-10-31

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