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Method for a redundant cooling solution using blowers and fans

IP.com Disclosure Number: IPCOM000007587D
Publication Date: 2002-Apr-08
Document File: 2 page(s) / 97K

Publishing Venue

The IP.com Prior Art Database

Abstract

Disclosed is a method for a redundant cooling solution using blowers and fans. Benefits include improved thermal performance and improved reliability.

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Method for a redundant cooling solution using blowers and fans

Disclosed is a method for a redundant cooling solution using blowers and fans. Benefits include improved thermal performance and improved reliability.

Background

              High-reliability system design requires redundant cooling. If an air-moving device such as a fan or blower, fails, the system must continue to be adequately cooled. Fans are conventionally used because they can be arranged to provide redundancy. Blowers typically generate better airflow with higher pressure. However, blowers are difficult to arrange in a redundant fashion.

      Conventionally, fans are mounted in a back-to-back fashion to gain redundancy. If one fan fails, the other fan continues to move the air. Because of their design, blowers cannot be mounted back-to-back. The blower design takes the air from the center of the impeller and directs the air out the side. That is, the air makes a right-angle turn.

Description

      The disclosed method places a fan downstream from the blower exhaust. The blower’s high pressure provides redundant cooling.

      The combination of a blower and a fan enables the blower to be used in a redundant scheme. The blower takes the air from the center of the impeller, moves the air out the side (towards the fan), and the air is pulled through the impeller in the fan. If the fan fails, the blower continues to move the air. If the blower fails, the fan pulls the air through the blower, providing redundancy with the benefit of the blo...