Turbomachine

Details Turbomachine Turbomachine

2008-01-22

2008-01-22

Nguyen, Hoang (Department: 3748)

Rotary kinetic fluid motors or pumps

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

Between blade edge and static part

C415S170100

Reexamination Certificate

active

07320574

ABSTRACT:
A turbomachine has, on its inner casing (5) and on its shaft, recesses into which shrouds of rotor blades and/or of guide vanes (2a) protrude. The recesses are configured with wave-shaped contouring arrangements (10), which extend over their periphery. The contouring (10) extends over axially extending regions of the recess and consists of periodic elevations and depressions (14, 15) in the radial direction. They can also be effected on the radially extending regions of the recess and on the shrouds. The undulation-shaped contouring arrangements are used to counteract existing pressure fields and to reduce performance losses due to mixing processes between the leakage flow and the main flow.

REFERENCES:
patent: 2278041 (1942-03-01), Allen
patent: 3893782 (1975-07-01), Pierpoline et al.
patent: 3989406 (1976-11-01), Bliss
patent: 4662820 (1987-05-01), Sasada et al.
patent: 6102655 (2000-08-01), Kreitmeier
patent: 6375416 (2002-04-01), Farrell et al.
patent: 6464460 (2002-10-01), El-Nashar et al.
patent: 7066713 (2006-06-01), Dube et al.
patent: 598787 (1978-05-01), None
patent: 2462465 (1977-04-01), None
patent: 1067273 (2001-01-01), None
patent: 56069402 (1981-06-01), None

Affiliated with

Also associated with

Rating

Turbomachine does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Turbomachine, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Turbomachine will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2779119