F - Mech Eng,Light,Heat,Weapons – 04 – D
Patent
F - Mech Eng,Light,Heat,Weapons
04
D
230/34
F04D 27/02 (2006.01)
Patent
CA 1105423
ABSTRACT OF THE DISCLOSURE: A centrifugal compressor comprising an impeller but not comprising distributor blazing upstream of the impeller, a pressure probe and regulator means controlled by the probe and arranged to act on the flow conditions downstream or upstream of the compressor to avoid the risk of surging. The probe is disposed upstream of the impeller of the compressor and being arranged to detect the critical direction of the absolute velocity of the fluid and to mesure the critical value of the radial gradient of the static pressure beyond which the compressor runs the risk of being subjected to surging. The said probe is provided with directional pressure ports, situated at the same distance from the wall of the intake casing and disposed symmetrically with respect to the critical direction of the absolute velocity of the fluid beyond which a risk of surging exists, and radial pressure gradient ports, situated one nearer to the said wall and the other farther from the said wall (with respect to the two directional pressure inlets). And a method of avoiding surging in a centrifugal compressor.
302651
Office National D'etudes Et de Recherches Aerospatiales (par Abr
Robic Robic & Associes/associates
LandOfFree
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