US PATENT SUBCLASS 415 / 58.2
.~ Radial flow runner portion guides re-entry working fluid (e.g., hub, back plate, etc.)

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

52.1  DF  WITH MEANS FOR RE-ENTRY OF WORKING FLUID TO BLADE SET (E.G., RE-ENTRY TYPE DEVICE, PASSAGE, ETC.) {11}
58.2.~ Radial flow runner portion guides re-entry working fluid (e.g., hub, back plate, etc.) {1}
58.3  DF  .~.~> Runner inlet shroud

DEFINITION

Classification: 415/58.2

Radial flow runner portion guides reentry working fluid (e.g., hub, back plate, etc.):

(under subclass 52.1) Device wherein the working fluid* flows through the runner* in a direction predominantly inwardly toward or outwardly from the runner's axis of rotation. The runner comprises a structure which assists in directing the working fluid which has previously contacted the blade* or blade row back to the blade or blade row.

(1) Note. The structure which assists in directing the working fluid back to the blade or blade row may comprise a hub, back plate, shroud, etc., of the runner.

(2) Note. A circumferential or transverse (i.e., cross) flow runner is not considered to be a radial flow runner for the purposes of this and indented subclasses.