US PATENT SUBCLASS 415 / 209.1
.~.~.~ Plural, axially spaced vane sets acting successively or having specific spacing means

Current as of: June, 1999
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415 /   HD   ROTARY KINETIC FLUID MOTORS OR PUMPS

182.1  DF  WORKING FLUID PASSAGE OR DISTRIBUTING MEANS ASSOCIATED WITH RUNNER (E.G., CASING, ETC.) {24}
208.1  DF  .~ Vane or deflector {3}
208.2  DF  .~.~ Plural and arcuately or circularly arranged in radial plane around runner axis {5}
209.1.~.~.~ Plural, axially spaced vane sets acting successively or having specific spacing means

DEFINITION

Classification: 415/209.1

Plural, axially spaced vane sets acting successively or having specific spacing means:

(under subclass 208.2) Device comprising first and second rows of such vanes* or other directing means positioned apart along the runner's* axis of rotation. Each row comprises at least two of the vanes or other directing means positioned equidistant from the runner's axis of rotation and in a (radial) plane perpendicular to the axis of rotation. The device further (a) directs the working fluid* through the two rows in sequence or (b) comprises particular means to position the two rows relative to one another along the axis of rotation.

(1) Note. The device may include a runner blade* row positioned between the axially spaced rows of vanes or other directing means.

SEE OR SEARCH THIS CLASS, SUBCLASS:

187, for a device comprising first plural distributing means immediately upstream of a runner, which first means are arcuately or circularly arranged around the runner axis in a radial plane with a blade of the runner, the device further comprising second plural distributing means axially spaced from the first plural distributing means.

193+, for a device comprising plural, axially spaced vane sets arcuately or circularly arranged around the runner's axis of rotation wherein one of the sets is immediately upstream of the runner.

199.5, for a device having plural, serial, axial flow blade sets with an intermediate stationary flow diverter.