Accession Number:

ADD020410

Title:

Cooling Acoustic Transcucer with Heat Pipes

Descriptive Note:

Patent application, filed 29 Jul 2009

Corporate Author:

DEPARTMENT OF THE NAVY WASHINGTON DC

Personal Author(s):

Report Date:

2009-07-19

Pagination or Media Count:

22.0

Abstract:

A transducer with a closed heat pipe is provided with a hot surface and a cold surface. The hot surface is in contact with the transducer interior and the cold surface is in contact with a cooler contact area. A fluid is used in the pipe which boils at the temperature of the hot surface and condenses at the temperature of the cold surface. A wick inside the heat pipe facilities the return by capillary action of the condensed fluid to the hot end. The heat pipe can be evacuated to adjust the boiling temperature of the fluid. A variant involves drilling additional holes into ceramic rings and inserting heat pipes. Increasing the heat pipe length into the tail mass and the piston increases the cool region for the fluid to condense thereby improving the performance of the transducer.

Subject Categories:

  • Acoustics
  • Thermodynamics

Distribution Statement:

APPROVED FOR PUBLIC RELEASE