US PATENT SUBCLASS 415 / 167.1
.~.~ Convertible series-parallel pump


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

148  DF  SELECTIVELY ADJUSTABLE VANE OR WORKING FLUID CONTROL MEANS {3}
151  DF  .~ Upstream of runner {7}
167.1.~.~ Convertible series-parallel pump


DEFINITION

Classification: 415/167.1

Convertible series-parallel pump:

(under subclass 151) Device comprising two blade* rows which each add energy (i.e., "pump"* blade rows) to working fluid* and further comprising means to selectively configure the device to direct the working fluid from a device inlet to an outlet either (a) along one path proceeding through the two blade rows in sequence (i.e., in-series flow path) or (b) along separate paths, a proceeding alone different ones of the through only one of the blade rows (i.e., in-parallel flow paths).