초록 ▼

A device for air mass flow control in a gas turbine engine includes at least one inlet duct 1 , which can issue into an air duct 2 , a counter-pressure duct 3 , and a double-action shut-off element, which is connected between the counter-pressure duct 3 and the inlet duct 1 and is responsive to pres

A device for air mass flow control in a gas turbine engine includes at least one inlet duct 1 , which can issue into an air duct 2 , a counter-pressure duct 3 , and a double-action shut-off element, which is connected between the counter-pressure duct 3 and the inlet duct 1 and is responsive to pressure differences between the two ducts to control air flow in the air duct 2.

대표청구항 ▼

1. A device for controlling air mass flow in a gas turbine engine, comprising:an inlet duct exposed to a first source of pressurized gas;an air duct also exposed to the first source of pressurized gas;a counter-pressure duct exposed to a second source of pressurized gas;a double-action shut-off elem

1. A device for controlling air mass flow in a gas turbine engine, comprising:an inlet duct exposed to a first source of pressurized gas;an air duct also exposed to the first source of pressurized gas;a counter-pressure duct exposed to a second source of pressurized gas;a double-action shut-off element which is connected between the inlet duct and the counter-pressure duct and is movable based on pressure differences between the inlet duct and the counter-pressure duct to control flow in the air duct. 2. A device in accordance with claim 1, wherein the shut-off element comprises a double-action piston and cylinder unit. 3. A device in accordance with claim 2, wherein the piston is movable into a flow area of the air duct as a shut-off element. 4. A device in accordance with claim 3, wherein the shut-off element provides for staged control of the air mass flow. 5. A device in accordance with claim 4, wherein the first source of pressurized gas is a cooling air flow of the gas turbine engine and the second source of pressurized gas is a turbine section of the gas turbine engine. 6. A device in accordance with claim 3, wherein the shut-off element provides for continuous control of the air mass flow. 7. A device in accordance with claim 6, wherein the first source of pressurized gas is a cooling air flow of the gas turbine engine and the second source of pressurized gas is a turbine section of the gas turbine engine. 8. A device in accordance with claim 2, and further comprising a slider-type element connected to the shut-off element which is movable into a flow area of the air duct. 9. A device in accordance with claim 8, wherein the slider-type element controls the flow area of several air ducts. 10. A device in accordance with claim 9, wherein the shut-off element provides for staged control of the air mass flow. 11. A device in accordance with claim 10, wherein the first source of pressurized gas is a cooling air flow of the gas turbine engine and the second source of pressurized gas is a turbine section of the gas turbine engine. 12. A device in accordance with claim 9, wherein the shut-off element provides for continuous control of the air mass flow. 13. A device in accordance with claim 12, wherein the first source of pressurized gas is a cooling air flow of the gas turbine engine and the second source of pressurized gas is a turbine section of the gas turbine engine. 14. A device in accordance with claim 1, wherein the shut-off element provides for staged control of the air mass flow. 15. A device in accordance with claim 14, wherein the first source of pressurized gas is a cooling air flow of the gas turbine engine and the second source of pressurized gas is a turbine section of the gas turbine engine. 16. A device in accordance with claim 1, wherein the shut-off element provides for continuous control of the air mass flow. 17. A device in accordance with claim 16, wherein the first source of pressurized gas is a cooling air flow of the gas turbine engine and the second source of pressurized gas is a turbine section of the gas turbine engine. 18. A device in accordance with claim 1, wherein the first source of pressurized gas is a cooling air flow of the gas turbine engine and the second source of pressurized gas is a turbine section of the gas turbine engine.