NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Phase change material thermal power generatorAn energy producing device, for example a submersible vehicle for descending or ascending to different depths within water or ocean, is disclosed. The vehicle comprises a temperature-responsive material to which a hydraulic fluid is associated. A pressurized storage compartment stores the fluid as soon as the temperature-responsive material changes density. The storage compartment is connected with a hydraulic motor, and a valve allows fluid passage from the storage compartment to the hydraulic motor. An energy storage component, e.g. a battery, is connected with the hydraulic motor and is charged by the hydraulic motor when the hydraulic fluid passes through the hydraulic motor. Upon passage in the hydraulic motor, the fluid is stored in a further storage compartment and is then sent back to the area of the temperature-responsive material.
Document ID
20110015397
Acquisition Source
Headquarters
Document Type
Other - Patent
Authors
Jones, Jack A.
Chao, Yi
Valdez, Thomas I.
Date Acquired
August 25, 2013
Publication Date
August 2, 2011
Subject Category
Energy Production And Conversion
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.
Patent
US-Patent-7,987,674
Patent Application
US-Patent-Appl-SN-12/113,882
No Preview Available