# US 11,906,164 B2 · Gas turbine combustor

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- Number: US 11,906,164 B2
- Document ID: US11906164B2
- Status: Granted
- Kind: B2
- Application number: 18/157,565
- Filed: 2023-01-20
- Published: 2023-05-18
- Granted: 2024-02-20
- Earliest claimed: 2020-02-10
- Assignees: Toshiba Energy Systems & Solutions Corporation
- Applicants: Toshiba Energy Systems & Solutions Corporation
- Inventors: Yasunori Iwai; Masao Itoh; Yuichi Morisawa; Yoshihisa Kobayashi; Shinju Suzuki
- Web page: https://patentgrep.com/patent/US11906164B2

## CPC

- F23R 3/002: {Wall structures (F23R3/02 and F23R3/007 take precedence)}
- F02C 3/34: with recycling of part of the working fluid, i.e. semi-closed cycles with combustion products in the closed part of the cycle
- F02C 6/00: Plural gas-turbine plants; Combinations of gas-turbine plants with other apparatus; Adaptations of gas-turbine plants for special use
- F02C 7/264: Ignition
- F05D 2220/32: in gas turbines
- F05D 2240/35: Combustors or associated equipment
- F05D 2260/607: Preventing clogging or obstruction of flow paths by dirt, dust, or foreign particles
- F05D 2260/608: Aeration, ventilation, dehumidification or moisture removal of closed spaces
- F05D 2260/61: Removal of CO2
- Y02E 20/16: Combined cycle power plant [CCPP], or combined cycle gas turbine [CCGT]
- F23R: GENERATING COMBUSTION PRODUCTS OF HIGH PRESSURE OR HIGH VELOCITY, e.g. GAS-TURBINE COMBUSTION CHAMBERS (fluidised bed combustion apparatus specially adapted for operation at superatmospheric pressures F23C10/16)
- F02C: GAS-TURBINE PLANTS; AIR INTAKES FOR JET-PROPULSION PLANTS; CONTROLLING FUEL SUPPLY IN AIR-BREATHING JET-PROPULSION PLANTS (construction of turbines F01D; jet-propulsion plants F02K; construction of compressors or fans F04; generating combustion products of high pressure or high velocity F23R; using gas turbines in compression refrigeration plants F25B11/00)
- F05D: INDEXING SCHEME FOR ASPECTS RELATING TO NON-POSITIVE-DISPLACEMENT MACHINES OR ENGINES, GAS-TURBINES OR JET-PROPULSION PLANTS
- Y02E: REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION

## Abstract

A combustor of an embodiment includes: a combustor casing; a combustor liner which is provided in the combustor casing and combusts a fuel and an oxidant to produce a combustion gas; a pipe-shaped member provided to penetrate the combustor casing and the combustor liner; a heat-resistant glass which is provided on the combustor casing side in the pipe-shaped member and closes the pipe-shaped member; a laser light supply mechanism which irradiates an interior of the combustor liner through the heat-resistant glass and an interior of the pipe-shaped member with a laser light; and a contact prevention mechanism which prevents a combustion gas in the combustor liner from coming into contact with the heat-resistant glass.

## Claims

### Claim 1

A gas turbine combustor, comprising:
a casing;
a combustion cylinder which is provided in the casing and is configured to combust fuel and oxidant to produce combustion gas;
a pipe-shaped member provided to penetrate the casing and the combustion cylinder;
a heat-resistant glass which is provided on the casing side in the pipe-shaped member and disposed to close the pipe-shaped member;
a laser light supply configured to irradiate an interior of the combustion cylinder through the heat-resistant glass and an interior of the pipe-shaped member with a laser light; and
a contact prevention mechanism configured to prevent the combustion gas in the combustion cylinder from coming into contact with the heat-resistant glass,
wherein the pipe-shaped member has an outside projecting portion projecting to an outside of the casing; and
the contact prevention mechanism comprises:
an annular member which is provided on an outer periphery of the outside projecting portion over a circumferential direction and includes an annular passage;
a fluid supply part configured to supply a fluid to the annular passage; and
an ejection part which has a plurality of ejection holes formed in a circumferential direction of the outside projecting portion and is configured to eject the fluid supplied to the annular passage through the ejection holes into the pipe-shaped member.

### Claim 2 (depends on 1)

The gas turbine combustor according to claim 1, wherein
the fluid is a portion of the combustion gas discharged from the combustion cylinder to drive a turbine.