초록 ▼

A gas-turbine engine combustor having a plurality of venturi mixers, each connected to an air supply path that passes air compressed by a compressor and to a supply source of gaseous fuel, which mix the air and the gaseous fuel to produce an air-fuel mixture and supply the air-fuel mixture to a comb

A gas-turbine engine combustor having a plurality of venturi mixers, each connected to an air supply path that passes air compressed by a compressor and to a supply source of gaseous fuel, which mix the air and the gaseous fuel to produce an air-fuel mixture and supply the air-fuel mixture to a combustion chamber for generating premixed combustion or diffusive combustion such that produced combustion gas is supplied to a turbine through a turbine nozzle to rotates the turbine that outputs its rotation through an output shaft, while driving the compressor by the rotation. The combustor includes a casing which defines the combustion chamber, and a liner disposed at an outer side of the casing to be communicated with the turbine nozzle, wherein the liner is formed with a plurality of holes through which a part of air passing through the air supply path enters the outer side of the casing, thereby enabling to cool the combustion chamber casing effectively, without introducing a flesh air or a diluted air into the combustion section of the combustion chamber, while ensuring the strength and durability of the combustion chamber casing.

대표청구항 ▼

1. A gas-turbine engine combustor having a plurality of venturi mixers, each connected to an air supply path that passes air compressed by a compressor and to a supply source of gaseous fuel, which mix the air and the gaseous fuel to produce an air-fuel mixture and supply the air-fuel mixture to a c

1. A gas-turbine engine combustor having a plurality of venturi mixers, each connected to an air supply path that passes air compressed by a compressor and to a supply source of gaseous fuel, which mix the air and the gaseous fuel to produce an air-fuel mixture and supply the air-fuel mixture to a combustion chamber for generating premixed combustion or diffusive combustion such that produced combustion gas is supplied to a turbine through a turbine nozzle to rotate the turbine that outputs a rotation through an output shaft, while driving the compressor by the rotation, comprising:a casing which defines the combustion chamber; and a liner disposed at an outer side of the casing to be connected with the turbine nozzle; wherein: the liner is formed with a plurality of holes through which a part of air passing through the air supply path enters the outer side of the casing, while the casing being formed without a hole through which a part of air passing through the air supply path enters the combustion chamber. 2. A gas-turbine engine combustor according to claim 1, wherein the casing is provided with a mixer forming portion at an end close to the turbine nozzle.3. A gas-turbine engine combustor according to claim 1, wherein the liner is formed with the plurality of holes comprising a first group of a prescribed first inner diameter and a second group of a prescribed second inner diameter which is less than the prescribed first diameter.4. A gas-turbine engine according to claim 1, wherein the output shaft of the turbine is connected to an electric generator.