Fluid-cooled mechanical face seal rotor

Details Fluid-cooled mechanical face seal rotor Fluid-cooled mechanical face seal rotor

2005-11-29

2005-11-29

Nguyen, Ninh H. (Department: 3745)

Rotary kinetic fluid motors or pumps

Bearing, seal, or liner between shaft or shaft sleeve and...

Seal

C415S231000

Reexamination Certificate

active

06969236

ABSTRACT:
A fluid-cooled seal rotor is described for a seal assembly that includes a seal case, a seal stator, and wherein the rotor has a sealing face on a first side and a heat-transfer structure on a second side. The heat-transfer structure may be a roughened surface. The heat-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 heat-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, the seal assembly having the fluid-cooled rotor, an air turbine starter having the seal assembly, air turbine starters and other machines with rotating shafts using the seal are within the scope of the invention.

REFERENCES:
patent: 3499653 (1970-03-01), Gardner
patent: 3813103 (1974-05-01), Wiese
patent: 4123089 (1978-10-01), Sato
patent: 4423879 (1984-01-01), Takenaka et al.
patent: 4836561 (1989-06-01), Lebeck et al.
patent: 4887395 (1989-12-01), Lebeck et al.
patent: 4889348 (1989-12-01), Amundson et al.
patent: 5090712 (1992-02-01), Pecht et al.
patent: 5143384 (1992-09-01), Lipschitz
patent: 5174584 (1992-12-01), Lahrman
patent: 5217233 (1993-06-01), Pecht et al.
patent: 5639096 (1997-06-01), Ullah
patent: 5702110 (1997-12-01), Sedy
patent: 5941532 (1999-08-01), Flaherty et al.
patent: 6257589 (2001-07-01), Flaherty et al.
patent: 6623238 (2003-09-01), Langston et al.
patent: PCT/US2004/028042 (2005-04-01), None
B. M. Steinetz; R. C. Hendricks; J Munson; Advanced Seal Technology Role in Meeting Next Generaton Turbine Engine Goals; NASA/TM-1998-206961; AVAT-PPS Paper No. 11; NATO Research and Technology Agency; Toulouse, France, May 11-15, 1998.

Affiliated with

Also associated with

Rating

Fluid-cooled mechanical face seal rotor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Fluid-cooled mechanical face seal rotor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Fluid-cooled mechanical face seal rotor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3489277