Heat driven acoustic orifice type pulse tube cryocooler

Details Heat driven acoustic orifice type pulse tube cryocooler Heat driven acoustic orifice type pulse tube cryocooler

2006-01-10

2006-01-10

Doerrler, William C. (Department: 3744)

Refrigeration

Gas compression, heat regeneration and expansion, e.g.,...

Reexamination Certificate

active

06983609

ABSTRACT:
A heat driven acoustic type pulse tube cryocooler has metal knit installed within a driving section cooling a driving gas of an application device using a principle of high temperature superconductivity, and then homogeneously heats the driving gas by way of premixed combustion so that the driving gas generates an acoustic having a predetermined frequency. The orifice installed within a reservoir controls the amount of the driving gas running between the cold reservoir and the pulse tube to constantly maintain a pressure of the cold reservoir. Therefore, the driving gas repeats the process of the compression and expansion centering around the pulse tube, thereby cooling the application device.

REFERENCES:
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patent: 5095700 (1992-03-01), Bolger
patent: 6622491 (2003-09-01), Hofmann
patent: 6637211 (2003-10-01), Swift et al.
patent: 6658862 (2003-12-01), Swift et al.
patent: 6868673 (2005-03-01), Weiland et al.

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