Abstract Air is caused to enter a nozzle in which a cylindrical plug is centrally located to form an annular orifice. The air discharging from the annular orifice impinges directly on the edge of a resonating cavity producing a multiple frequency edgetone. The column of air in the resonating cavity is thereby caused to vibrate at a frequency determined by the depth of the cavity. The changes in pressure within the resonating cavity cause a diaphragm forming an end of the cavity to pulsate inwardly and outwardly. A rod is attached to the diaphragm, and this rod transmits the vibrations of the diaphragm to a metallic reed which will then oscillate between a pair of magnetic pole pieces. The oscillations of the reed will induce an electro-motive force into a coil. The electromotive force induced in the coil may be made available to provide energy to operate an external electrical circuit.
Apparatus for utilizing fluid flow to generate electrical energy comprising: a. an enclosed volume having an open end and a closed end and defining a resonant cavity, b. an annular orifice directing an annular column of fluid directly into and so as to impinge upon an edge of said open end of said enclosed volume so as to produce a multiple frequency edgetone thereby causing the fluid in said enclosed volume to vibrate at a predetermined frequency, c. mechanical means for sensing the vibrations of said enclosed volume, d. generating means for translating the vibrations sensed by said mechanical means into electrical energy, and e. means for exhausting a portion of said fluid, and wherein f. said enclosed volume is horn shaped and said open end is formed by a cylinder.
Claim 2
Dependent Claim
131 words
Apparatus for utilizing fluid flow to generate electrical energy comprising: a. an enclosed volume having an open end and a closed end and defining a resonant cavity, b. an annular orifice directing an annular column of fluid directly into and so as to impinge upon an edge of said open end of said enclosed volume so as to produce a multiple frequency edgetone thereby causing the fluid in said enclosed volume to vibrate at a predetermined frequency, c. mechanical means for sensing the vibrations of said enclosed volume, d. generating means for translating the vibrations sensed by said mechanical means into electrical energy, and e. means for exhausting a portion of said fluid, and wherein f. said enclosed volume is horn shaped and said open end is formed by a cylinder.
Claim 3
Dependent Claim
21 words
The apparatus of claim 1 in which said mechanical means is a diaphragm forming the closed end of said enclosed volume.
Claim 4
Dependent Claim
56 words
The apparatus of claim 2 in which said generating means comprises a means producing a magnetic field and a metallic reed which will vibrate in said magnetic field in response to vibrations of said diaphragm and a coil adapted to have an electromotive force induced therein by the vibrations of said reed in said magnetic field.