Systems and methods utilizing gas temperature as a power source
US-12163485-B2 · Dec 10, 2024 · US
Gas turbine starting process
US8925328B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-8925328-B2 |
| Application number | US-89983710-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 7, 2010 |
| Priority date | Oct 26, 2009 |
| Publication date | Jan 6, 2015 |
| Grant date | Jan 6, 2015 |
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- Title
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Abstract
Official abstract text for this publication.
A starting process for a gas turbine ( 28 ) that holds the turbine speed of rotation at an ignition speed setting during an ignition window ( 58 ), with the ignition speed setting being based on ambient air conditions to achieve a specified combustor air mass flow rate ( 52 ). A fuel flow rate may be set based on the fuel type and temperature to achieve a particular air/fuel ratio in a combustor. The fuel flow rate may be adjusted during the ignition window and thereafter based on a combustor inlet air temperature ( 46 ). Completion of ignition may be determined by a reduction ( 68 ) in a blade path temperature spread ( 66 ). After ignition, fuel flow is increased to accelerate the turbine to full speed. At any point, the fuel flow may be reduced, or its increase may be slowed, to avoid exceeding a temperature limit in the turbine.
First claim
Opening claim text (preview).
The invention claimed is: 1. A process for starting a gas turbine engine comprising: determining an ignition speed for the gas turbine engine that produces a particular air mass flow rate in a combustion section of the gas turbine engine; accelerating or decelerating the gas turbine engine to a rotation speed within ±5% of the ignition speed, which defines a start of an ignition window; energizing at least one igniter in the combustion section of the gas turbine engine; supp…
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- F01D19/00Primary
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
Mechanical Engineering · mapped topic
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Frequently asked questions
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- What does patent US8925328B2 cover?
- A starting process for a gas turbine ( 28 ) that holds the turbine speed of rotation at an ignition speed setting during an ignition window ( 58 ), with the ignition speed setting being based on ambient air conditions to achieve a specified combustor air mass flow rate ( 52 ). A fuel flow rate may be set based on the fuel type and temperature to achieve a particular air/fuel ratio in a combusto…
- Who is the assignee on this patent?
- Rodd Shervin, Foust Adam M, Hildebrandt Gary V, and 2 more
- What technology area does this patent fall under?
- Primary CPC classification F01D19/00. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Tue Jan 06 2015 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).