Advanced Metalworking Solutions for
Naval Systems that Go in Harm's Way

Reverse-Brayton Cryocooler Manufacturing Improvements

Manufacturing improvements will reduce the purchase price for the reverse-Brayton cryocooler on future ship classes. Creare image


This Navy Metalworking Center (NMC) project will identify and demonstrate manufacturing improvement alternatives that will support implementation of HTS degaussing systems on Navy surface combatants.


High-Temperature Superconducting (HTS) degaussing systems require a cryogenic refrigeration system to maintain the low operating temperature of the HTS cables. Creare LLC (Creare) has previously produced reverse-Brayton cryocooler units to meet the demands of one-off applications that have been driven by performance requirements and not production costs. Improving the manufacturability and reducing the production cost of these units will provide significant cost avoidance and make HTS degaussing systems more attractive for both near-term and future naval implementation.

Technical Approach

NMC will create documentation packages that outline specific manufacturing improvements necessary to reduce the fabrication costs of specific cryocooler components. Creare will incorporate these manufacturing improvements to develop and fabricate a production cryocooler unit that can be used to conduct qualification testing and shipboard demonstration.


The project’s goal is to achieve a cryocooler purchase price of no more than $200K per unit based on a 16-unit purchase; success will result in a $7 million savings over five years if implemented on future ship classes.


Implementation is expected to occur on a future surface combatant, pending successful qualification of the complete reverse-Brayton cryocooler.




Michael Pyryt


Naval Surface Warfare Center, Carderock Division
PMS 501 Littoral Combat Ship Program Office
Creare LLC