Temperature control of gas filling process

Details Temperature control of gas filling process Temperature control of gas filling process

2007-01-09

2007-01-09

Jones, Melvin (Department: 3744)

Refrigeration

Vortex tube, e.g., ranque

C062S050700

Reexamination Certificate

active

11256897

ABSTRACT:
The present invention provides for a method and apparatus for controlling and raising the temperature of a fitting used to transfer liquefied gas to a storage vessel. A hollow metal tube containing heated inert gas contacts the fitting such that heat is transferred to the fitting. By raising the temperature of the fitting, problems such as leakage due to freezing the o-ring seal can be reduced. The method utilizes a vortex tube as the heat source to avoid problems with sparking when an incendiary gas such as hydrogen is being transferred to the storage vessel.

REFERENCES:
patent: 4011732 (1977-03-01), Doherty et al.
patent: 6134893 (2000-10-01), Bonn

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