Patent ID: 8998588
Filing Date: 2015-04-07
Classification: F04D,H02K

Abstract:
1. A fan assembly element comprising: an axially inner shroud segment configured to form a portion of an annular assembly about a rotor of a dynamoelectric machine; wherein at least one circumferentially facing surface of the axially inner shroud segment includes a mating surface configured to form a seal with a circumferentially facing surface of a complementary fan assembly element; wherein the axially inner shroud segment includes a rotor hub interface configured to physically connect to a complementary portion of a rotor hub; a first set of fan blades physically connected to and extending axially from a face of the axially inner shroud segment; and a first axially outer shroud segment physically connected to the first set of fan blades; wherein the axially inner shroud segment and the first axially outer shroud segment are axially spaced from one another relative to the rotor hub; wherein each fan blade of the first set of fan blades includes a first axial end fully connected to the axially inner shroud segment and a second axial end fully connected to the first axially outer shroud segment; and wherein the fan assembly is configured to allow fluid flow between adjacent fan blades of the first set of fan blades during operation of the dynamoelectric machine.