Electrical generators for low-frequency and time-varying rocking and rotary motion

• US 7,821,183 B2
• Filed: 06/19/2008
• Issued: 10/26/2010
• Est. Priority Date: 06/19/2008
• Status: Active Grant

• Current Assignee: Omnitek Partners LLC
• Original Assignee: Omnitek Partners LLC
• Inventors: Rastegar, Jahangir S.
• Primary Examiner(s): Dougherty; Thomas M
• Application Number:
  US12/142,739
• Publication Number:
  US 20090315431A1
• Time in Patent Office: 859 Days
• Field of Search: 310/339
• US Class Current: 310/339
• CPC Class Codes: H02N 2/18 producing electrical output from mechanical input, e.g. generators for measurement devices G01
• CPC Class Codes: H10N 30/306 Cantilevers

Abstract

A method for generating electrical energy from a first motion having a low and/or variable frequency is provided. The method including: transferring the first motion to a first device; and intermittently transferring the first motion from the first device to a second device operating at a frequency which is higher and/or more constant that the first motion.

Claims

1. An apparatus for generating electrical energy from a first motion having a low and/or variable frequency, the apparatus comprising:

a first device to which the first motion is transferred; and

a second device to which the first motion is intermittently transferred from the first device, the second device operating at a frequency which is higher and/or more constant that the first motion;

wherein the first device comprises a vibrating mass and the vibrating mass is secured to a base by a spring element, the base being subjected to the first motion.

2. The apparatus of claim 1, wherein the mass includes one or more tips interacting with the second device to transfer the first motion thereto.

3. The apparatus of claim 2, wherein the second device comprises one or more vibrating members having one or more piezoelectric materials associated therewith such that the one or more tips interact with a portion of the one or more vibrating members to vibrate the one or more vibrating members to generate electrical energy from the one or more piezoelectric members associated therewith.

4. The apparatus of claim 3, wherein the one or more tips interact with the one or more vibrating members by contacting with the portion of the one or more vibrating members.

5. The apparatus of claim 3, wherein the one or more tips interact with the one or more vibrating members by creating a magnetic repulsion force with the portion of the one or more vibrating members.

6. The apparatus of claim 1, wherein the second device comprises three or more second devices and the three or more second devices are arranged radially around the first device.

7. An apparatus for generating electrical energy from a first motion having a low and/or variable frequency, the apparatus comprising:

a first device to which the first motion is transferred; and

a second device to which the first motion is intermittently transferred from the first device, the second device operating at a frequency which is higher and/or more constant that the first motion;

wherein the first device comprises a rotating shaft;

the shaft includes one or more tips interacting with the second device to transfer the first motion thereto, the second device comprises one or more vibrating members having one or more piezoelectric materials associated therewith such that the one or more tips interact with a portion of the one or more vibrating members to vibrate the one or more vibrating members to generate electrical energy from the one or more piezoelectric members associated therewith and the one or more tips interact with the one or more vibrating members by creating a magnetic repulsion force with the portion of the one or more vibrating members.

8. An apparatus for generating electrical energy from a first motion having a low and/or variable frequency, the apparatus comprising:

a first device to which the first motion is transferred; and

a second device to which the first motion is intermittently transferred from the first device, the second device operating at a frequency which is higher and/or more constant that the first motion;

wherein the first device comprises a translating mass;

the first mass includes a first portion interacting with the second device to transfer the first motion thereto, the second device comprises one or more vibrating members having one or more piezoelectric materials associated therewith such that the first portion interacts with a second portion of the one or more vibrating members to vibrate the one or more vibrating member to generate electrical energy from the one or more piezoelectric members associated therewith and the first portion interacts with the one or more vibrating members by creating a magnetic repulsion force with the second portion of the one or more vibrating members.

9. A method for generating electrical energy from a first motion having a low and/or variable frequency, the method comprising:

transferring the first motion to a first device; and

intermittently transferring the first motion from the first device to a second device operating at a frequency which is higher and/or more constant that the first motion;

wherein the transferring comprises vibrating a mass at the low and/or variable frequency, the intermittently transferring comprises interacting a tip portion associated with the vibrating mass with one or more vibrating members having one or more piezoelectric materials associated therewith to vibrate the one or more vibrating members to generate electrical energy from the one or more piezoelectric members associated therewith, and the interacting comprising magnetically repulsing a portion of the one or more vibrating members.

10. A method for generating electrical energy from a first motion having a low and/or variable frequency, the method comprising:

transferring the first motion to a first device; and

intermittently transferring the first motion from the first device to a second device operating at a frequency which is higher and/or more constant that the first motion;

wherein the transferring comprises rotating a shaft;

the intermittently transferring comprises interacting a tip portion associated with the shaft with one or more vibrating members having one or more piezoelectric materials associated therewith to vibrate the one or more vibrating members to generate electrical energy from the one or more piezoelectric members associated therewith and the interacting comprising magnetically repulsing a portion of the one or more vibrating members.

11. A method for generating electrical energy from a first motion having a low and/or variable frequency, the method comprising:

transferring the first motion to a first device; and

intermittently transferring the first motion from the first device to a second device operating at a frequency which is higher and/or more constant that the first motion;

wherein the transferring comprises translating a mass;

the intermittently transferring comprises interacting a first portion of the translating mass with one or more vibrating members having one or more piezoelectric materials associated therewith to vibrate the one or more vibrating members to generate electrical energy from the one or more piezoelectric members associated therewith and the interacting comprises magnetically repulsing the second portion of the one or more vibrating members.