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1. 发明授权

US10203067B2 Automatic thermal decoupling of a cold head 有权
公开(公告)号：US10203067B2
公开(公告)日：2019-02-12
申请号：US14849661
申请日：2015-09-10
申请人： Bruker BioSpin GmbH
发明人： Marco Strobel
IPC分类号： F25B9/00 , F25B9/10 , F25B9/14 , F04B37/08 , F17C3/08 , F25D19/00
摘要： A cryostat has a cooling arm with a first thermal contact surface which can be brought into thermal contact with a second thermal contact surface on an object to be cooled. A hollow volume (2) between the inner side of the neck tube, the cooling arm, and the object is filled with gas and the cooling arm is pressurized by the inner pressure of the gas and also by atmospheric pressure. A contact device brings the first and the second contact surfaces into thermal contact below a threshold gas pressure and moves them away from each other when the threshold pressure has been exceeded such that a gap (13) filled with gas thermally separates the first and second contact surfaces. Operationally safe and fully automatic reduction of the thermal load acting on the object to be cooled is thereby obtained in case the cooling machine fails.

2. 发明授权

US12055608B2 Autonomous cooling of a superconductive dry-cooled MR magnetic coil system 有权
公开(公告)号：US12055608B2
公开(公告)日：2024-08-06
申请号：US17830669
申请日：2022-06-02
申请人： Bruker BioSpin GmbH
发明人： Marco Strobel
IPC分类号： G01R33/38 , G01R33/3815
CPC分类号： G01R33/3804 , G01R33/3815
摘要： A method for autonomously cooling down a cryogen-free superconductive magnetic coil system includes:

(a1) measuring the current temperature Tactual at the magnet and comparing it to a temperature target value T1target;
(a2) if Tactual>T1target, actuating a vacuum pump and opening a barrier valve in a vacuum conduit that leads from the vacuum pump into a vacuum vessel containing the magnet;
(b1) measuring the current pressure Pactual in the vacuum vessel and comparing it to a pressure target value P1target;
(b2) if Pactual

3. 发明授权

US10203068B2 Method and device for precooling a cryostat 有权
公开(公告)号：US10203068B2
公开(公告)日：2019-02-12
申请号：US15225094
申请日：2016-08-01
申请人： Bruker BioSpin GmbH
发明人： Marco Strobel
IPC分类号： F17C3/08 , F25D19/00 , H01F6/04 , F25B9/10 , F17C13/00 , G01R33/38 , F25B9/14
摘要： A method is provided for precooling a cryostat having a hollow cold head turret into which a neck tube protrudes and connects an object to be cooled to the exterior of the cryostat, wherein a cold head having a cold head stage for cooling a cryogenic working medium may be introduced into the neck tube. During a condensation operation the cryogenic working medium flows through a heat pipe into an evaporator chamber which is thermally conductively connected to the object to be cooled. During a precooling phase a precisely fitting, thermally conductive short circuit block is inserted through the neck tube into the heat pipe to provide thermal conduction between the object to be cooled and a cooling device The short circuit block is removed from the heat pipe after the target temperature is reached, and heat is subsequently transmitted through the heat pipe during a condensation operation.

4. 发明申请

US20160084440A1 Automatic thermal decoupling of a cold head 审中-公开
标题翻译：冷头自动热解耦
公开(公告)号：US20160084440A1
公开(公告)日：2016-03-24
申请号：US14849661
申请日：2015-09-10
申请人： Bruker BioSpin GmbH
发明人： Marco Strobel
IPC分类号： F17C3/08 , F25D19/00
CPC分类号： F17C3/085 , F25D19/006
摘要： A cryostat has a cooling arm with a first thermal contact surface which can be brought into thermal contact with a second thermal contact surface on an object to be cooled. A hollow volume (2) between the inner side of the neck tube, the cooling arm, and the object is filled with gas and the cooling arm is pressurized by the inner pressure of the gas and also by atmospheric pressure. A contact device brings the first and the second contact surfaces into thermal contact below a threshold gas pressure and moves them away from each other when the threshold pressure has been exceeded such that a gap (13) filled with gas thermally separates the first and second contact surfaces. Operationally safe and fully automatic reduction of the thermal load acting on the object to be cooled is thereby obtained in case the cooling machine fails.
摘要翻译：低温恒温器具有具有第一热接触表面的冷却臂，该第一热接触表面可以与要冷却的物体上的第二热接触表面热接触。在颈管的内侧，冷却臂和物体之间的中空体积（2）填充有气体，并且冷却臂由气体的内部压力以及大气压力加压。接触装置使得第一和第二接触表面在阈值气体压力之下进行热接触，并且当已经超过阈值压力时使它们彼此远离，使得填充有气体的间隙（13）热分离第一和第二接触表面。因此，在冷却机故障的情况下，可以实现操作安全，全自动地降低作用在待冷却物体上的热负荷。

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