Accession Number:

ADD019111

Title:

Breathing Gas Temperature Modification Device

Descriptive Note:

Patent, Filed 16 Dec 96, patented 9 Jun 98

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Report Date:

1998-06-09

Pagination or Media Count:

7.0

Abstract:

A device is provide for modifying the temperature of a breathing or other gas supplied through a conduit. A heat exchanger is mounted in-line with the conduit. A thermoelectric device has first and second thermally conductive plates separated by at least one thermoelectric couple. The first thermally conductive plate is in thermal contact with the heat exchanger. A phase change material is in thermal contact with the second thermally conductive plate. A voltage is applied to the thermoelectric couples to maintain the first and second thermally conductive plates at different temperatures. The phase change material changes from a first phase to a second phase at a phase change temperature that is selected to be between the different temperatures of the first and second thermally conductive plates.

Subject Categories:

  • Life Support Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE