Piezoelectric heat exchanger

Details Piezoelectric heat exchanger Piezoelectric heat exchanger

1982-01-25

1983-09-27

Richter, Sheldon J.

Heat exchange

With means flexing, jarring or vibrating heat exchange surface

165109R, 310800, F28F 1302, F28F 1312

Patent

active

044063237

ABSTRACT:
Apparatus is disclosed for providing increased heat transfer efficiency in a heat exchanger by separating contiguous fluid conductive channels by means of a flexible partition of a bimorph construction consisting of two adjacent layers of piezoelectric material arranged so that, when an electrical signal is applied, one layer expands while the other contracts causing the composite sheet to flex and push a sub-laminar layer of the fluid located adjacent to the sheet away into the turbulent stream while drawing other fluid into contact with the partition. The preferred embodiment of the invention additionally includes a grid or mesh member between the two layers for strengthening the partition so that it can withstand a relatively large pressure gradient thereacross.

REFERENCES:
patent: 2514797 (1950-07-01), Robinson
patent: 2664274 (1953-12-01), Worn et al.
patent: 2937500 (1960-05-01), Bodine, Jr.
patent: 3814172 (1974-06-01), Shore
patent: 4234245 (1980-11-01), Toda et al.
patent: 4283461 (1981-08-01), Wooden et al.

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