Radiation shield with helical fluid passages

Details Radiation shield with helical fluid passages Radiation shield with helical fluid passages

1983-05-31

1985-01-08

Capossela, Ronald C.

Refrigeration

Low pressure cold trap process and apparatus

62505, 62514R, 165169, 310 64, 336DIG1, F17C 702

Patent

active

044920881

ABSTRACT:
A radiation heat shield which comprises a plurality of helical grooves distributes possible thermal expansions around its circumference. These potential thermal expansions could be caused by transient conditions or other abnormal operational modes which could reduce the flow of coolant through particular fluid passages of the radiation shield. By incorporating a plurality of helical fluid passages, these potential thermal expansions are distributed around the circumference of the radiation shield and the resulting distortion moments tend to cancel each other and, provided that a sufficient number of turns is possible, eliminate the imbalance.

REFERENCES:
patent: 2559272 (1951-07-01), Beck
patent: 2626130 (1953-01-01), Raskin
patent: 4250418 (1981-02-01), Eckels
patent: 4319149 (1982-03-01), Eckels
patent: 4356700 (1982-11-01), Eckels et al.
patent: 4386289 (1983-05-01), Intichar et al.

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