Acoustic pump

Details Acoustic pump Acoustic pump

1986-01-22

1987-08-04

Croyle, Carlton R.

Pumps

Motor driven

Magnetostrictive chamber

417410, 417436, 416 83, 310330, F04B 1700

Patent

active

046843280

ABSTRACT:
An acoustic pump including a resonant member having low internal damping and asymmetrically tapered to a thin edge; a piezoelectric driver mounted on the resonant member; and means for applying an alternating voltage to the piezoelectric driver in the resonant range of the resonant member for vibrating the resonant member and pumping fluid away from the thin edge.

REFERENCES:
patent: 2932494 (1960-04-01), Wales
patent: 3040976 (1962-06-01), De Mattos
patent: 4342936 (1982-08-01), Marcus et al.
patent: 4498851 (1985-02-01), Kolm et al.
Fitzpatrick, "Natural Flight & Related Aeronautics", Institute of the Aeronautical Sciences, 7-1952, p. 5.
"A Piezoelectric Cooling Fan", Computers & Electronics, 3-1983, p. 104.
Toda, "Vibrational Fan Using the Piezoelectric Polymer PVF.sub.2 ", Proceedings of the IEEE, vol. 67, Aug. 1979, p. 1171.

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