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FOR AIR FLEXIBLE IMPELLER FLOW AND COOLING

IP.com Disclosure Number: IPCOM000026059D
Original Publication Date: 1990-Feb-28
Included in the Prior Art Database: 2004-Apr-05
Document File: 2 page(s) / 70K

Publishing Venue

Xerox Disclosure Journal

Abstract

An impeller is frequently used to induce air movement within an enclosed cavity for the purposes of component cooling and effluent removal. An inexpensive method of providing air movement is the attachment of an impeller mechanism to a rotating member or drive assembly, thereby, eliminating the need for a dedicated or double shaft motor to drive the cooling impeller.

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XEROX DISCLOSURE JOURNAL

FLEXIBLE IMPELLER FLOW AND COOLING John A. Wargo

FOR AIR Proposed Classification

U.S. C1.261/084

Int. C1. Bold 47/16

An impeller is frequently used to induce air movement within an enclosed cavity for the purposes of component cooling and effluent removal. An inexpensive method of providing air movement is the attachment of an impeller mechanism to a rotating member or drive assembly, thereby, eliminating the need for a dedicated or double shaft motor to drive the cooling impeller.

Referring to the Figure, a flexible impeller 2 is comprised of an expandable cylindrical core 4 and a plurality of flexible blades 6 extending radially from the outer circumference of core 4. The blades 6 are attached to the outer cylindrical plane of cylindrical core 4 in a manner capable of causing air movement when impeller 2 is rotated by shaft 8. Specifically, when impeller 2 is rotated in the direction indicated by arrow 10, it will cause movement of air in the direction indicated by arrow 12.

The expandable nature of the inner diameter of cylindrical core 4 is intended to enable usage on a broad range of shaft diameters. In addition, use of a shaft 8 with a diameter greater than the inner diameter of cylindrical core 4 may impart sufficient friction force between shaft 8 and the impeller 2 sufficient to eliminate the need for any additional mechanical connection between the shaft and the impeller.

XEROX DISCLOSURE JOURNAL - Vol. 15, No. 1 January/Februar...