Method and system for starting an intermittent flame-powered pilot combustion system

Patent metadata

Field	Value
Publication number	US-10429068-B2
Application number	US-201615340657-A
Country	US
Kind code	B2
Filing date	Nov 1, 2016
Priority date	Jan 11, 2013
Publication date	Oct 1, 2019
Grant date	Oct 1, 2019

Abstract

A flame powered intermittent pilot combustion controller may include a first power source and a second power source separate from the first power source, a thermal electric and/or photoelectric device, an igniter and a controller. The thermal electric and/or photoelectric device may charge the first power source when exposed to a flame. The controller and the igniter may receive power from the first power source when the first power source has sufficient available power, and may receive power from the second power source when the first power source does not have sufficient available power.

First claim

What is claimed is:

1. A method of igniting a pilot flame of a gas-powered appliance having a flame powered intermittent pilot ignition system, the method comprising:
using power from a first power source to ignite the pilot flame of the gas-powered appliance in a first ignition following installation of the gas-powered appliance; and
using power from a second power source and not the first power source to ignite the pilot flame of the gas-powered appliance after the first ignition.

2. The method of claim 1 , wherein the first power source comprises a pre-charged capacitor.

3. The method of claim 1 , wherein the first power source comprises a battery.

4. The method of claim 1 , wherein the first power source comprises a line voltage.

5. The method of claim 1 , wherein the first power source comprises a hand powered generator.

6. The method of claim 1 , wherein the second power source comprises a rechargeable battery.

7. The method of claim 1 , wherein the second power source comprises a capacitor.

8. The method of claim 1 , further comprising:
receiving an ignition command from a user via a momentary switch to ignite the pilot flame of the gas-powered appliance for the first ignition, wherein the ignition command causes power from the first power source to ignite the pilot flame of the gas-powered appliance.

9. The method of claim 1 , further comprising:
charging the second power source from a thermal electric and/or photoelectric device that is exposed to the pilot flame during subsequent operation of the gas-powered appliance following the first ignition.

10. The method of claim 9 , further comprising using power from the first power source to ignite the pilot flame of the gas-powered appliance if, during subsequent operation of the gas-powered appliance following the first ignition, energy stored in the second power source falls below a threshold level.

11. A method of igniting a pilot flame of a gas-powered appliance having a flame powered intermittent pilot ignition system, the method comprising:
using power from a first power source to ignite the pilot flame of the gas-powered appliance for initial startup after installation of the gas-powered appliance; and
using power from a second power source and not the first power source to ignite the pilot flame of the gas-powered appliance after initial startup of the gas-powered appliance.

12. The method of claim 11 , further comprising:
charging the second power source from a thermal electric and/or photoelectric device that is exposed to the pilot flame during subsequent operation of the gas-powered appliance following initial startup; and
using power from the first power source to ignite the pilot flame of the gas-powered appliance during subsequent operation of the gas-powered appliance if energy stored in the second power source falls below a threshold level.

13. The method of claim 11 , wherein the first power source comprises a pre-charged capacitor.

14. The method of claim 11 , wherein the first power source comprises a battery.

15. The method of claim 11 , wherein the first power source comprises a line voltage.

16. The method of claim 11 , wherein the first power source comprises a hand powered generator.

17. The method of claim 11 , wherein the second power source comprises a rechargeable battery.

18. The method of claim 11 , wherein the second power source comprises a capacitor.

19. A method of igniting a pilot flame of a gas-powered appliance having a flame powered intermittent pilot ignition system, the method comprising:
using power from a first power source to ignite the pilot flame of the gas-powered appliance for initial startup after installation of the gas-powered appliance; and
using power from a thermal electric and/or photoelectric device that is exposed to the pilot flame during subsequent operation of the gas-powered appliance following initial startup, and not the first power source, to ignite the pilot flame of the gas-powered appliance after initial startup of the gas-powered appliance.

20. The method of claim 19 , further comprising:
charging a second power source using power from the thermal electric and/or photoelectric device; and
using power from the first power source to ignite the pilot flame of the gas-powered appliance during subsequent operation of the gas-powered appliance following initial startup if energy stored in the second power source falls below a threshold level.

Assignees

• Ademco Inc

Inventors

• Chian Brent
• Bird Douglas
• Anderson Peter
• Nordberg Timothy J
• Johnson Thomas
• Strand Rolf L

Classifications

• F24D2101/60

  Thermoelectric generators, e.g. Peltier or Seebeck elements · CPC title

• F24D18/00

  Small-scale combined heat and power [CHP] generation systems specially adapted for domestic heating, space heating or domestic hot-water supply · CPC title

• F24H1/186

  using fluid fuel · CPC title

• F23Q7/26

  Provision for re-ignition · CPC title

• F23Q5/00 Primary

  Make-and-break ignition, i.e. with spark generated between electrodes by breaking contact therebetween (specially adapted for internal-combustion engines F02P15/00) · CPC title