Hose cooling chamber with cold gas recycle

摘要

The present invention relates to an improved cooling chamber for the manufacture of high-pressure reinforced hose. Hose to be treated is passed through a tubular passageway in the cooling chamber where it is contacted with a cryogenic fluid. A portion of the cryogenic fluid is passively recycled via a recycle loop to provide further cooling within the tubular passageway. An end seal is attached to one end of the cooling chamber to prevent moisture build-up and freezing inside the chamber.