Solid state blower

Details Solid state blower Solid state blower

F - Mech Eng,Light,Heat,Weapons

04

B

230/45

F04B 35/04 (2006.01)

Patent

CA 1244807

Applicant: Kolm et al For: Solid State Blower ABSTRACT OF DISCLOSURE A pumping device comprising: a housing; piezoelectric element having one end mounted to the housing and one end free; a generally planar impeller blade connected to the free end of the piezoelectric element and having its distal end unconstrained by the housing; the blade having a high Q factor, a high stiffness-to-weight ratio and a low mass per unit area substantially less than that of the piezoelectric element; a voltage is applied to the piezoelectric element for oscillating its free end perpendicular to its plane at or close to resonance and propagating a traveling wave along the blade to generate and shed vortices at the distal end of the blade. PEP-123J

426169

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