Inducer with shrouded rotor for high speed applications

Details Inducer with shrouded rotor for high speed applications Inducer with shrouded rotor for high speed applications

2006-07-04

2006-07-04

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

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

Between blade supported radial tip ring and static part

C415S174200, C416S189000, C416S228000, C416S195000, C416S19600R

Reexamination Certificate

active

07070388

ABSTRACT:
An inducer rotor rotatably mountable in an inducer for pressurizing fluid traveling through the inducer. The inducer rotor includes a hub. The hub has a central axis and a plurality of blades extending radially outward from the hub. Each blade extends from a root portion that is next to the hub, to a tip portion that is opposite the root. The rotor further includes a shroud extending circumferentially between each pair of adjacent blades within the plurality of blades. The shroud has an inner surface facing the central axis and an outer surface that is opposite the inner surface. Between the inner and outer surface of the shroud is defined a thickness. The shroud thickness varies circumferentially around the shroud.

REFERENCES:
patent: 2278041 (1942-03-01), Allen
patent: 2724544 (1955-11-01), Hardigg
patent: 4721313 (1988-01-01), Pennink
patent: 6854958 (2005-02-01), Desy

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