F - Mech Eng,Light,Heat,Weapons – 01 – K
Patent
F - Mech Eng,Light,Heat,Weapons
01
K
60/26
F01K 7/00 (2006.01) F01K 25/00 (2006.01) F03G 7/04 (2006.01)
Patent
CA 1159657
ABSTRACT OF THE DISCLOSURE A device for converting low temperature heat energy into mechanical or electrical energy is provided herein. At least one chamber containing a working fluid performs work in response to temperature variations. One or more expansible and compressible containers are arranged in the chamber. Each container contains a working fluid, e.g., a refrigerant, capable of shifting from liquid phase to gas phase, and vice versa, thereby producing or contributing work. One or more ground accumulators are arranged to store and deliver heat by melting and freezing ice, one of the accumulators including a freezing point depressing agent therein. The refrigerant is alternatingly heat exchanged with the two sources of low temperature heat energy, namely, the ground accumulators, of different temperatures, thereby causing alternating expansion and con- traction of the containers. The invention provides a simple, efficient and economical device for producing mechanical and electrical energy from low temperature heat energy. Preliminary studies indicate that such energy would be considerably cheaper than, e.g., oil and nuclear power based energy production.
343887
Backlund Anders D.
Borden Ladner Gervais Llp
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