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Liquid Cooling Distribution Circuit with Bypass Reservoir

IP.com Disclosure Number: IPCOM000051427D
Original Publication Date: 1981-Jan-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 2 page(s) / 40K

Publishing Venue

IBM

Related People

Antonetti, VW: AUTHOR [+3]

Abstract

A dual-loop liquid cooling distribution circuit is provided in which th reservoir tank is in a bypass configuration with respect to the return liquid line. The figure illustrates the main portion of the circuit, which, when viewed as a single loop for convenience, consists of a pump 1 and supply line 2 leading to a heat exchanger and supply manifold, the latter two not shown. Of particular interest is the return line 3 which channels the bulk of the liquid received from the return manifold directly to the pump 1, allowing for only a relatively small portion of the total returning liquid to be conducted through the reservoir tank 6 via separate bypass lines 4 and 5. This is a significant departure from the present cooling distribution circuit in which all of the returning liquid passes through the reservoir.

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Liquid Cooling Distribution Circuit with Bypass Reservoir

A dual-loop liquid cooling distribution circuit is provided in which th reservoir tank is in a bypass configuration with respect to the return liquid line. The figure illustrates the main portion of the circuit, which, when viewed as a single loop for convenience, consists of a pump 1 and supply line 2 leading to a heat exchanger and supply manifold, the latter two not shown. Of particular interest is the return line 3 which channels the bulk of the liquid received from the return manifold directly to the pump 1, allowing for only a relatively small portion of the total returning liquid to be conducted through the reservoir tank 6 via separate bypass lines 4 and 5. This is a significant departure from the present cooling distribution circuit in which all of the returning liquid passes through the reservoir. A dual motorized valve 7, operated by means of liquid level switches 8 located within the reservoir 6, isolates the two flow loops from one another in the event of a leak.

The bypass configuration provides many advantages. For example, with only a small portion of return liquid passing through the reservoir tank, weir effects and liquid level sensing problems are minimized or altogether eliminated. The dynamic forces within the tank are reduced considerably, allowing for a lighter, smaller, more compact design. Also, the amount of liquid flowing through the reservoir can be design determined by varying...