FLUIDIC GENERATOR

• US 3,663,845 A
• Filed: 02/18/1971
• Issued: 05/16/1972
• Est. Priority Date: 02/18/1971
• Status: Expired due to Term

• Current Assignee: Maurice Apstein
• Original Assignee: Maurice Apstein
• Inventors: Apstein, Maurice
• Primary Examiner(s): Sliney, D. X.
• Application Number:
  US05/116,364
• Time in Patent Office: 453 Days
• Field of Search: 310/15,25,27 290/43,44,54,55 73/194EM
• US Class Current: 310/15
• CPC Class Codes: H02K 35/06 with moving flux distributors, and both coil systems and magnets stationary
• CPC Class Codes: H02K 7/1892 Generators with parts oscillating or vibrating about an axis

Abstract

A fluidic electric generator having a balanced reed positioned as a rocking member in an air conduit. A spring connected between the reed and the conduit biases the reed in a balanced position. Air flow through the conduit causes the reed to rock at a resonant frequency due to the biasing action of the spring. As the reed rocks, it changes the magnetic reluctance between sets of opposing magnetic poles and causes reversal of flux through the reed thereby inducing an AC signal in surrounding windings. The oscillating reed is oriented in non-impeding relation to the fluidic flow.

Claims

1. A fluid powered generator for producing electrical power comprising:

a. a conduit having a longitudinal axis;

b. at least one pair of magnetic north pole pieces positioned along one side of said conduit;

c. at least one pair of magnetic south pole pieces positioned along a second side of said conduit;

d. ferromagnetic means mounted within said conduit for developing oscillatory motion in response to the passage of fluid through said conduit such that a low reluctance path is alternatively made between one of said pair of north and one of said pair of south pole pieces, whereby the direction of flux lines is alternatively reversed through said ferromagnetic means; and

e. means responsive to said flux reversal for generating an alternating voltage.

2. The generator of claim 1 further comprising first and second permanent magnets positioned adjacent said conduit so as to impart north and south polarities, respectively, to said north and south pole pieces.

3. The generator of claim 1 wherein said means responsive to flux reversal comprises a plurality of windings having a central axis coaxial with said longitudinal axis.

4. The structure defined in claim 1 wherein pivot pins integrally connected to the member along the rocking axis are supportingly received in corresponding openings in the conduit, and resilient means connected between at least one pin and the conduit for biasing the member toward a balanced longitudinal position.

5. The structure as claimed in claim 4 wherein the connection of resilient means to the conduit is achieved by passing an end of the resilient means between adjacent spaced projections extending inwardly from a wall of the conduit.

6. A fluid powered generator for producing electrical power comprising a conduit for channeling fluid therethrough, a ferromagnetic member disposed in the conduit for vibrating about a fixed axis as fluid passes through the conduit, a permanent magnet, at least one pair of oppositely fixed magnetic poles disposed in diagonal relation with respect to the ferromagnetic member for completing a magnetic circuit between the poles when the member assumes a position magnetically bridging the poles, and windings arranged around the member for generating an alternating electrical voltage in response to completion of a magnetic circuit.

7. The structure set forth in claim 6 wherein two pairs of diagonally spaced opposing magnetic poles are arranged in pairwise angularly offset relation so that at opposite extremes of ferromagnetic member displacement, each end portion of the said member comes positioned adjacent a corresponding pole thereby alternatively completing a reversing magnetic circuit between each pole pair via the member.

8. The structure defined in claim 7 wherein pivot pins integrally connected to the member along the fixed axis of vibration are supportingly received in corresponding openings in the conduit, and resilient means connected between at least one pin and the conduit for biasing the member toward a balanced longitudinal position.

9. The structure defined in claim 8 wherein the connection of the resilient means to the conduit is achieved by passing an end of the resilient means between adjacent spaced projections extending inwardly from a wall of the conduit.

10. The structure defined in claim 6 wherein the ferromagnetic body is characterized as a rectangular plate symmetrical about the fixed axis of vibration.