Fluid conveying apparatus having multiple piezoelectric driven b

Details Fluid conveying apparatus having multiple piezoelectric driven b Fluid conveying apparatus having multiple piezoelectric driven b

1997-10-10

1999-08-24

Freay, Charles G.

Pumps

Motor driven

Electric or magnetic motor

F04B 3504

Patent

active

059416947

ABSTRACT:
In a fluid conveying apparatus in which there is provided, in a flow passage of a fluid, a platelike oscillator which is vibrated with an upstream end thereof, as seen in a flow direction of the fluid, as a fixed end and a downstream end thereof as a free end, the oscillator is divided into minute oscillators of smaller length. The minute oscillators are disposed in longitudinally (back and forth) multiple stages inside the flow passage. A sufficient conveying capacity can thus be obtained even if the flow passage is small in width.

REFERENCES:
patent: 4923000 (1990-05-01), Nelson
patent: 5008582 (1991-04-01), Tanuma et al.

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