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Cryocooler with magnetic reciprocating piston

A piston and magnetic field technology, applied in the field of cryogenic refrigerators with magnetic reciprocating pistons, can solve the problems of expensive and complex structures, and achieve the effects of light weight, improved cooling, and easy manufacturing

Active Publication Date: 2020-10-13
엠브이이바이오로지컬솔루션스유에스엘엘씨
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The structure of this conventional motor is very complex and the electromagnetic stator which would fail in the wires or their insulation can only be repaired or replaced by rupturing or opening the pressurized container
Thus, conventional motors and associated cryogenic refrigerators are very expensive

Method used

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  • Cryocooler with magnetic reciprocating piston
  • Cryocooler with magnetic reciprocating piston
  • Cryocooler with magnetic reciprocating piston

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0029] figure 1 is a view 100 showing a system 101 including a cryogenic refrigerator 102 for liquefied gas, such as oxygen. System 100 may further include a compressor 104 , a gas separator (eg, a concentrator, such as a pressure swing absorbent oxygen concentrator, also known as an air separation unit) 106 , and a storage vessel (eg, a flask, such as a vacuum flask) 108 . Compressor 104 may receive ambient air 110, which may be a mixture of approximately 78% nitrogen, approximately 21% oxygen, carbon dioxide, methane, hydrogen, argon, and helium with the remaining 1%. Compressor 104 may compress ambient air 110 to form compressed air 112 . Air separator 106 may receive compressed air 112 from a compressor and substantially separate desired gas 114 , such as oxygen, from other gases in compressed air 112 (eg, nitrogen, carbon dioxide, methane, hydrogen, argon, and helium). Air separator 106 may exhaust these other gases, which are then referred to as exhaust gases 116 . Th...

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PUM

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Abstract

A cryocooler is described that can include a pressure wave generator, and a refrigeration device (for example, a coldhead), which can be used to liquefy a gas when the gas is exposed to a surface of the refrigeration device. The pressure wave generator can include one or more motors. Each motor can include a stator, and at least one electrical coil wound around a portion of the stator. The electrical coil can generate a reversing magnetic field when alternating electric current is passed through the electrical coil. The motor can further include a pressurized container that can be placed within the space enclosed by the stator, and a piston that can be placed inside the pressurized container. The stators can be placed external to the pressurized container. The piston is made by combining magnets that have opposite and transverse polarities, and are combined adjacently on a common reciprocating axis.

Description

[0001] This application is a divisional application of the patent application No. 201480051536.4 (PCT / US2014 / 049484) filed by the applicant on August 1, 2014, entitled "Cryogenic Refrigerator with Magnetic Reciprocating Piston". technical field [0002] The subject matter described herein relates to cryogenic refrigerators that include a pressure wave generator and a refrigeration device (e.g., a coldhead) that can be used to liquefy a gas while the gas is exposed to a surface of the refrigeration device. More specifically Said, the pressure wave generator includes one or more reciprocating motors, and the electromagnetic stator is outside the pressurized container, each motor includes a magnetic piston made of a magnet with laterally opposite poles, the piston is configured to Sliding within the pressurized container while minimizing friction between the piston and the pressurized container. Background technique [0003] A large number of patients suffer from respiratory di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F25B9/14F04B35/04F04B35/00H02K33/16H02K33/00
CPCF04B35/004F25B9/14H02K33/16F25B2309/001H02K33/00F04B35/04
Inventor J.A.科里D.A.威尔科克斯
Owner 엠브이이바이오로지컬솔루션스유에스엘엘씨
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