EP 0028245 B1 19840321 - SOLID STATE BLOWER
Title (en)
SOLID STATE BLOWER
Publication
Application
Priority
- US 3681279 A 19790507
- US 14234880 A 19800502
Abstract (en)
[origin: WO8002445A1] A pumping device for gases or liquids having a housing and a substantially planar resilient impeller mounted to the housing to be free to move perpendicular to the impeller plane. Apparatus for driving the impeller and acting at least one point in the impeller is provided which acts to propagate a travelling flexure wave along the impeller in the plane of the impeller to pump gas or liquid. In the preferred embodiment of the invention, the impeller is an elongated blade (18) and is driven by a piezoelectric bending element (28) movable back and forth by a controlled alternating voltage power supply (39). The blade or diaphragm may be contained in a channel or duct, so that the undulating motion of the blade against the walls of the duct act as a valving means.
IPC 1-7
IPC 8 full level
F04B 17/00 (2006.01); F04B 43/12 (2006.01); F04B 43/14 (2006.01); F04D 33/00 (2006.01)
CPC (source: EP)
F04D 33/00 (2013.01)
Citation (examination)
FR 2033309 A1 19701204 - INT COMBUSTION LTD
Designated contracting state (EPC)
DE FR GB NL
DOCDB simple family (publication)
WO 8002445 A1 19801113; DE 3067101 D1 19840426; EP 0028245 A1 19810513; EP 0028245 A4 19810827; EP 0028245 B1 19840321; JP S56500576 A 19810430; JP S6315480 B2 19880405
DOCDB simple family (application)
US 8000534 W 19800506; DE 3067101 T 19800506; EP 80901052 A 19801117; JP 50125980 A 19800506