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Mixed gas refrigerant system for sensor cooling below 80ºk

a technology of mixed gas and cooling system, which is applied in the direction of liquefaction, machine operation mode, light and heating apparatus, etc., can solve the problems of increasing the cost of manufacturing and operation of active refrigeration system types, requiring frequent maintenance, and existing system types, however, are generally only suitable for operation

Inactive Publication Date: 2007-09-13
RAYTHEON CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These types of active refrigeration systems have become more expensive to manufacture and operate, and require frequent maintenance.
Existing systems, however, are generally only suitable for operation above about 80° K.
For cryogenic applications between 27° K and 80° K, none of these pure compounds provide a suitable condensed phase normal boiling point temperature.

Method used

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  • Mixed gas refrigerant system for sensor cooling below 80ºk
  • Mixed gas refrigerant system for sensor cooling below 80ºk

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Embodiment Construction

[0016] The following representative descriptions of the present invention generally relate to exemplary embodiments and the inventor's conception of the best mode, and are not intended to limit the scope, applicability or configuration of the invention in any way. Rather, the following description is intended to provide convenient illustrations for implementing various embodiments of the invention. As will become apparent, changes may be made in the function and / or arrangement of any of the elements described in the disclosed exemplary embodiments without departing from the spirit and scope of the invention.

[0017] A detailed description of a representative mixed gas refrigerant cooling system is provided as a specific enabling disclosure that may be generalized to any operational embodiment of the disclosed invention.

[0018] The present invention may be described herein in terms of multi-component gas mixtures and Joule-Thomson systems. Multi-component gas mixtures, according to va...

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Abstract

The present invention discloses multi-component gas mixtures adapted to provide condensed phase cryogenic refrigerants with normal boiling points below about 80° K. for cooling sensor device components. Exemplary gas mixtures generally include 19-40% Ar and 20.1-80.5% Ne. Open-loop Joule-Thomson systems in accordance with the present invention may be suitably adapted (with varying relative mass ratios of cryogenic gas mixtures) for cooling sensor devices to temperatures between 27° K. (100% Neon) and about 80° K. (0% Neon).

Description

RELATED APPLICATIONS [0001] This application is a continuation-in-part of and claims priority to U.S. patent application Ser. No. 11 / 374,806 filed on Mar. 13, 2006 by Lawrence D. Sobel in the United States Patent and Trademark Office.FIELD OF INVENTION [0002] The present invention generally concerns refrigerant systems; and more particularly, representative and exemplary embodiments of the present invention generally relate to the cooling of sensor devices with mixed gas cooling systems. BACKGROUND OF INVENTION [0003] Freon-type pure gases have been generally used in closed-cycle refrigeration systems operating within household and commercial refrigeration temperature regimes. More recently, mixed gases (frequently utilizing Freon as one of the constituent components) have also been employed. Such consumer-level refrigeration systems typically employ equipment that is suitably adapted to operate within desired pressure ratios and temperature ranges. [0004] When operating cooling sys...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): F25B19/02
CPCC09K5/041F25B9/02F25B9/006
Inventor SOBEL, LAWRENCE
Owner RAYTHEON CO
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