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Method for a controllable airfoil to provide uniform airflow distribution in a forced convection cooling system

IP.com Disclosure Number: IPCOM000011733D
Publication Date: 2003-Mar-12
Document File: 8 page(s) / 407K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a controllable airfoil to provide uniform airflow distribution in a forced convection cooling system. Benefits include improved functionality, improved thermal performance, and improved reliability.

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Method for a controllable airfoil to provide uniform airflow distribution in a forced convection cooling system

Disclosed is a method for a controllable airfoil to provide uniform airflow distribution in a forced convection cooling system. Benefits include improved functionality, improved thermal performance, and improved reliability.

Background

        � � � � � Conventional methods of forced convection cooling may restrict some passages from receiving the amount of airflow required for cooling when fan failures occur. This situation can occur in ducted applications where a parallel set of fans cool two processors. If one fan fails, the processor being cooled by that fan may overheat.

General description

� � � � � The disclosed method is a controllable airfoil to provide uniform airflow distribution in a forced convection cooling system. A monitor and control circuit measures the airflow, pressure, and current in the duct or to the fan of a ducted cooling configuration in a dual processor computing system. At the detection of degraded airflow, the circuit adjusts the airfoil by rotating it. The airfoil moves laterally until a more uniform airflow to the heat source is achieved.

        � � � � � The controllable airfoil is designed to slide across the duct to open a passage for the working fan to cool the processors. The airfoil is designed around the principle of lift. By rotating the airfoil, the airfoil moves to open the passageway.

        � � � � � The key elements of the method include:

•        � � � � Airfoil

•        � � � � Rotating hinge

•        � � � � Slot

Advantages

        � � � � � The disclosed method provides advantages, including:

•        � � � � Improved thermal performance due to directing air in the event of cooling fan failure to prevent processor thermal failure

•        � � � � Improved functionality due to a rotating airfoil in the event of cooling fan failure

•        � � � � Improved functionality due to a monitor and control circuit that measures the airflow, pressure, and current in the duct or to the fan of a ducted cooling configuration in dual processor compu...