US PATENT SUBCLASS 415 / 180
.~ Cooling fluid contacts shaft, seal or bearing


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

177  DF  INCLUDING HEAT INSULATION OR EXCHANGE MEANS (E.G., FINS, LAGGING, ETC.) {2}
180.~ Cooling fluid contacts shaft, seal or bearing


DEFINITION

Classification: 415/180

(under subclass 177) Apparatus comprising an arrangement to transfer heat from the shaft*, seal or bearing by direct contact of a cooling fluid with such part.

(1) Note. This definition accepts only those devices in which a fluid other than the working fluid* is used as the coolant; for devices using the working fluid* for this purpose, see the search notes below.

SEE OR SEARCH THIS CLASS, SUBCLASS:

116+, for a device in which the cooling fluid for contacting the shaft*, seal or bearing is then caused to enter upstream of all disclosed runner* stages and pass through at least one stage.

144+, for a device in which the cooling fluid is then caused to enter the working fluid* flow path at an intermediate runner* stage.