Rotary kinetic fluid motors or pumps – Method of operation
Reexamination Certificate
2006-01-03
2006-01-03
Look, Edward K. (Department: 3745)
Rotary kinetic fluid motors or pumps
Method of operation
C415S017000, C415S118000, C417S038000, C417S044200, C417S063000
Reexamination Certificate
active
06981838
ABSTRACT:
A method and apparatus for detecting the occurrence of surge or incipient surge in a centrifugal compressor is supplied. The centrifugal compressor has an inlet passage, an inlet passage wall and an impeller. When flowing a fluid through the centrifugal compressor thereby establishing a fluid flow in the inlet passage, the fluid flow is measured in the inlet passage proximate the inlet passage wall and proximate the impeller. The measurements may include detecting a reverse in the fluid flow direction, measuring a tangential component to the fluid flow, measuring a substantial decrease in the axial fluid flow, and/or measuring the fluid temperature. Fluid flow in the compressor can then be modified or controlled to prevent surge.
REFERENCES:
patent: 4464720 (1984-08-01), Agarwal
patent: 4581900 (1986-04-01), Lowe et al.
patent: 4594051 (1986-06-01), Gaston
patent: 4686834 (1987-08-01), Haley et al.
patent: 5224836 (1993-07-01), Gunn et al.
patent: 5306116 (1994-04-01), Gunn et al.
patent: 5611664 (1997-03-01), Haugen
patent: 5746062 (1998-05-01), Beaverson et al.
patent: 5894736 (1999-04-01), Beaverson et al.
patent: 5913248 (1999-06-01), Harada et al.
patent: 5971712 (1999-10-01), Kann
patent: 6036432 (2000-03-01), Sishtla et al.
patent: 6213724 (2001-04-01), Haugen et al.
Edlund Carl E.
McKee Robert J.
Crutsinger & Booth, LLC
Look Edward K.
Southern Gas Association Gas Machinery Reserach Council
White Dwayne J.
LandOfFree
Method and apparatus for detecting the occurrence of surge... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method and apparatus for detecting the occurrence of surge..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method and apparatus for detecting the occurrence of surge... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3533078