Vibration absorber for the pulse tube refrigerator of such as magnetic resonance imaging system

Vibration absorber for the pulse tube refrigerator of such as magnetic resonance imaging system

  • CN 104,428,608 B
  • Filed: 04/19/2013
  • Issued: 05/11/2018
  • Est. Priority Date: 05/25/2012
  • Status: Active Grant
First Claim
Patent Images

1. a kind of pulse tube refrigerator, including pedestal head and at least one cold bench, at least one cold bench is installed on associatedThe distal end for the pedestal head of each in reheater tubes and associated vascular, the associated backheatDevice pipe and the associated vascular provide the coolant gas of pressurization at least one cold bench together, wherein, the phaseAssociated reheater tubes and the associated vascular are each along almost parallel axis extension and by with identical elasticMaterial is formed;

  • And it is arranged to:

    Each pipe is respectively provided with inside radius and outer radius, and for each pipe, inside radius square with it is outerThe ratio of the difference of two squares of radius and inside radius is roughly the same;

    And it is also configured to:

    When the pulse tube refrigerator works, in response to the circulation change of coolant gas pressure, the phaseThe displacement of the distal end of each in associated reheater tubes and the associated vascular is roughly the same.

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