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US7111463B2
Expired / Lapsed
US
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Combustion wave ignition for combustors
Assignee: Aerojet Rocketdyne of DE Inc
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Filing: 2004-01-23
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Granted: 2006-09-26
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Expires: 2024-01-23
Abstract
Abstract A system, such as a turbine power production system, including a plurality of combustion chambers. The combustion chamber may be provided with an ignition system that allows for substantially simultaneous ignition of each of the plurality of the combustors. Generally, a detonation wave may be provided to each of the combustion chambers substantially simultaneously from a single ignition combustion wave chamber.
Inventors
- 👤 Kenneth M Sprouse
- 👤 Shahram Farhangi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 03:15
CPC Classifications
F; F23; F23R; F23R3/00; F23R3/40; F02; F02C; F02C7/00; F02C7/26; F02C7/264; F23R3/28; F23R3/34; F23R3/343; F23D; F23D2900/00; F23D2900/00014; Y; Y02; Y02T; Y02T50/00; Y02T50/60
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
118 words
A power production system, comprising: a combustion oxidizer source to provide a selected volume of a combustion oxidizer; a combustion fuel source to provide a selected volume of a combustion fuel; a plurality of a combustor to combust the selected volume of the fuel and the oxidizer, wherein combusting the selected volume of the fuel and the oxidizer form expanding gases; a turbine powered by the expanding gasses; and an ignition system to provide substantially simultaneous ignition of each of the plurality of the combustors, said ignition system including a combustion wave chamber to form a detonation wave that can be transmitted through an ignition line with at least one of a selected oxidizer and a selected fuel.
Claim 2
Dependent Claim
118 words
A power production system, comprising: a combustion oxidizer source to provide a selected volume of a combustion oxidizer; a combustion fuel source to provide a selected volume of a combustion fuel; a plurality of a combustor to combust the selected volume of the fuel and the oxidizer, wherein combusting the selected volume of the fuel and the oxidizer form expanding gases; a turbine powered by the expanding gasses; and an ignition system to provide substantially simultaneous ignition of each of the plurality of the combustors, said ignition system including a combustion wave chamber to form a detonation wave that can be transmitted through an ignition line with at least one of a selected oxidizer and a selected fuel.
Claim 3
Dependent Claim
69 words
The power production system of claim 1 , wherein: the plurality of the combustors each include a oxidizer pathway that provides a path to provide the oxidizer to main combustion chamber in each of the plurality of the combustors; and the selected volume of the combustion fuel is mixed with the selected volume of the oxidizer flowing to the oxidizer pathway to be combusted in the main combustion chamber.
Claim 4
Dependent Claim
35 words
The power production system of claim 2 , wherein said ignition system includes a pilot that is able to combust the selected volume of the combustion fuel in the selected volume of the combustion oxidizer.
Claim 5
Dependent Claim
59 words
The power production system of claim 1 , wherein: said ignition system includes a combustion wave chamber in which a selected volume of an ignition oxidizer in a selected volume of an ignition fuel is combusted; and the combustion of the selected volume of the ignition oxidizer and the selected volume of the ignition fuel forms a detonation wave.
Claim 6
Dependent Claim
38 words
The power production system of claim 4 , wherein said ignition system further includes an ignition line operable to transmit the detonation wave from the combustion wave chamber to each of the plurality of the combustors substantially simultaneously.
Claim 7
Dependent Claim
43 words
The power production system of claim 1 , wherein said ignition system includes an ignition line, which includes a central tube to transmit the detonation wave, a first annulus to transmit the selected oxidizer and a second annulus to provide the selected fuel.
Claim 8
Dependent Claim
47 words
The power production system of claim 1 , wherein: said ignition system includes a combustion wave chamber, an ignition line, and a pilot port; and said combustion wave chamber is operable to produce a combustion wave that is transmitted along the ignition line to the pilot port.
Claim 9
Dependent Claim
27 words
The power production system of claim 1 , further comprising an igniter to ignite a selected volume of an oxidizer and a fuel in the ignition system.
Claim 10
Dependent Claim
16 words
The power production system of claim 8 , wherein said ignition source includes a spark source.
Claim 11
Independent Claim
99 words
A method of igniting a plurality of pilots in a plurality of main combustion chambers, each of said combustion chamber being separated from each of the other main combustion chambers, the method comprising: forming a detonation wave; transmitting the detonation wave to at least one of the main combustion chambers; at least one of providing and flowing a selected volume of a pilot oxidizer and a pilot fuel to the main combustion chamber; igniting the selected volume of the pilot oxidizer and the pilot fuel; combusting a selected main fuel; and powering a turbine with the combusting main fuel.
Claim 12
Independent Claim
99 words
A method of igniting a plurality of pilots in a plurality of main combustion chambers, each of said combustion chamber being separated from each of the other main combustion chambers, the method comprising: forming a detonation wave; transmitting the detonation wave to at least one of the main combustion chambers; at least one of providing and flowing a selected volume of a pilot oxidizer and a pilot fuel to the main combustion chamber; igniting the selected volume of the pilot oxidizer and the pilot fuel; combusting a selected main fuel; and powering a turbine with the combusting main fuel.
Claim 13
Dependent Claim
29 words
The method of claim 10 , wherein forming a detonation wave includes: igniting a selected volume of an oxidizer and a fuel, wherein the ignition forms the detonation wave.
Claim 14
Dependent Claim
18 words
The method of claim 11 , wherein said oxidizer is molecular oxygen and said fuel is molecular hydrogen.
Claim 15
Dependent Claim
33 words
The method of claim 11 , wherein igniting a selected volume of an oxidizer and the fuel includes spark igniting the selected volume of the oxidizer and the fuel at a selected time.
Claim 16
Dependent Claim
34 words
The method of claim 10 , further comprising: forming a deflagration wave; and transmitting the deflagaration wave along a selected length of a transmission line to convert said deflagaration wave to the detonation wave.
Claim 17
Dependent Claim
36 words
The method of claim 10 , wherein transmitting the detonation wave to the at least one of the main combustion chambers includes transmitting the detonation wave to a plurality of the main combustion chambers substantially simultaneously.
Claim 18
Dependent Claim
28 words
The method of claim 15 , wherein transmitting the detonation wave to a plurality of the main combustion chamber substantially simultaneously ignites a plurality of pilots substantially simultaneously.
Claim 19
Dependent Claim
29 words
The method of claim 16 , wherein each of the plurality of the pilots combust the selected main fuel substantially simultaneously in the plurality of the main combustion chambers.
Claim 20
Dependent Claim
122 words
A power production system, comprising: a combustion oxidizer source to provide a selected volume of a combustion oxidizer; a combustion fuel source to provide a selected volume of a combustion fuel; a plurality of a combustor to combust the selected volume of the fuel and the oxidizer, wherein combusting the selected volume of the fuel and the oxidizer form expanding gases; a turbine powered by the expanding gasses; and an ignition system to provide substantially simultaneous ignition of each of the plurality of the combustors, wherein said ignition system includes an ignition line, which includes a central tube to transmit the detonation wave, a first annulus to transmit a selected pilot oxidizer and a second annulus to provide a selected pilot fuel.
Claim 21
Dependent Claim
122 words
A power production system, comprising: a combustion oxidizer source to provide a selected volume of a combustion oxidizer; a combustion fuel source to provide a selected volume of a combustion fuel; a plurality of a combustor to combust the selected volume of the fuel and the oxidizer, wherein combusting the selected volume of the fuel and the oxidizer form expanding gases; a turbine powered by the expanding gasses; and an ignition system to provide substantially simultaneous ignition of each of the plurality of the combustors, wherein said ignition system includes an ignition line, which includes a central tube to transmit the detonation wave, a first annulus to transmit a selected pilot oxidizer and a second annulus to provide a selected pilot fuel.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 2009-09-25 | 2010-03-27 | 2010-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2013-09-25 | 2014-03-27 | 2014-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2017-09-25 | 2018-03-27 | 2018-09-26 | $7700.00 | Window Closed / Lapsed |