Non-vibrational oscillating blade piezoelectric blower

Details Non-vibrational oscillating blade piezoelectric blower Non-vibrational oscillating blade piezoelectric blower

1983-11-17

1986-06-17

Croyle, Carlton R.

Fluid reaction surfaces (i.e., impellers)

Oscillatory reaction motion

Flexible working member

416 83, 417322, 417410, 310348, F01D 116

Patent

active

045953384

ABSTRACT:
A non-vibrational oscillating blade piezoelectric blower is disclosed, including: a piezoelectric bender and means for supporting the piezoelectric bender at its inertial nodes. Weights may be attached to the bender to control the location of the inertial nodes. Flexible blades may be attached to the bender at various locations and with their planes in various orientations. The blower according to this invention may also consist of two benders oscillating 180 degrees out of phase to further minimize vibration and noise.

REFERENCES:
patent: 1486040 (1924-03-01), Schieferstein
patent: 3040976 (1962-06-01), De Mattos
patent: 3206986 (1965-09-01), Christensen
patent: 3620651 (1971-11-01), Hufton
patent: 3821747 (1974-06-01), Mason
patent: 4063826 (1977-12-01), Riepe
patent: 4131874 (1978-12-01), Geohegan, Jr.
patent: 4172427 (1979-10-01), Kindred
patent: 4176976 (1979-12-01), Lendl
Toda et al., "Vibrational Fan Using the Piezoelectric Polymer PVF.sub.2 ", Proceedings of the IEEE, Aug. 1979, p. 1171.

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