IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0164221
(2011-06-20)
|
등록번호 |
US-8684660
(2014-04-01)
|
발명자
/ 주소 |
- Miranda, Carlos Miguel
- Cummings, Edward William
|
출원인 / 주소 |
|
대리인 / 주소 |
|
인용정보 |
피인용 횟수 :
3 인용 특허 :
22 |
초록
▼
A pressure and temperature actuation system is provided having a high-temperature low-pressure zone, a low-temperature high-pressure zone, a boundary, a pressure actuated mechanism, and a temperature mechanism. A gas located in the high-temperature low-pressure zone has a greater gas temperature tha
A pressure and temperature actuation system is provided having a high-temperature low-pressure zone, a low-temperature high-pressure zone, a boundary, a pressure actuated mechanism, and a temperature mechanism. A gas located in the high-temperature low-pressure zone has a greater gas temperature than the gas located in the low-temperature high-pressure zone. The gas located in the low-temperature high-pressure zone has a greater gas pressure than the gas located in the high-temperature low-pressure zone. The boundary separates the high-temperature low-pressure zone from the low-temperature high pressure zone. The pressure actuated mechanism is located within the boundary and is configured for opening at a specified gas pressure in either the high-temperature low-pressure zone or the low-temperature high-pressure zone. The temperature actuated mechanism is located within the boundary and is configured for opening at a specified gas temperature in either the high-temperature low-pressure zone or the low-temperature high-pressure zone.
대표청구항
▼
1. A pressure and temperature actuation system, comprising: a high-temperature low-pressure zone and a low-temperature high-pressure zone, a gas being located in both of the high-temperature low-pressure zone and the low-temperature high-pressure zone, the gas located in the high-temperature low-pre
1. A pressure and temperature actuation system, comprising: a high-temperature low-pressure zone and a low-temperature high-pressure zone, a gas being located in both of the high-temperature low-pressure zone and the low-temperature high-pressure zone, the gas located in the high-temperature low-pressure zone having a greater gas temperature than the gas located in the low-temperature high-pressure zone, and the gas located in the low-temperature high-pressure zone having a greater gas pressure than the gas located in the high-temperature low-pressure zone;a boundary separating the high-temperature low-pressure zone from the low-temperature high pressure zone;a pressure actuated mechanism located within the boundary and configured for opening at a specified gas pressure in one of the low-temperature high-pressure zone and the high-temperature low-pressure zone, wherein opening the pressure actuated mechanism allows for gas to escape from the low-temperature high-pressure zone into the high-temperature low-pressure zone; anda temperature actuated mechanism located within the boundary and configured for opening at a specified gas temperature in one of the low-temperature high-pressure zone, the high-temperature low-pressure zone, and a pressure differential between the low-temperature high-pressure zone and the high-temperature low-pressure zone, wherein opening the temperature actuated mechanism allows for the gas located in the low-temperature high-pressure zone to enter the high-temperature low-pressure zone, and a cooling flow being provided to the high-temperature low pressure zone as the gas travels from the low-temperature high-pressure zone to the high-temperature low pressure zone, wherein the pressure actuated mechanism and the temperature actuated mechanism are both fluidly connected to a passageway in communication with a plurality of cooling holes located in the boundary, the passageway connecting the high-temperature low-pressure zone and the low-temperature high-pressure zone, at least one of another pressure actuated mechanism and another temperature actuated mechanism being located within at least one of the plurality of cooling holes. 2. The pressure and temperature actuation system of claim 1, wherein the specified temperature occurs during at least one of high ambient conditions and gas turbine high load operating conditions. 3. The pressure and temperature actuation system of claim 1, wherein the specified pressure is based at least in part by a gas turbine turndown low load operation condition. 4. The pressure and temperature actuation system of claim 1, wherein the pressure actuated mechanism and the temperature actuated mechanism are combined into a single, unitary valve and are actuated in a configuration that is one of independent of one another and dependent on one another. 5. The pressure and temperature actuation system of claim 1, wherein the pressure actuated mechanism and the temperature actuated mechanism are each separate valves. 6. A turbine, comprising: a high-temperature low-pressure zone and a low-temperature high-pressure zone, a gas being located in both of the high-temperature low-pressure zone and the low-temperature high-pressure zone, the gas located in the high-temperature low-pressure zone having a greater gas temperature than the gas located in the low-temperature high-pressure zone, the gas located in the low-temperature high-pressure zone having a greater gas pressure than the gas located in the high-temperature low-pressure zone;a boundary located within the turbine and separating the high-temperature low-pressure zone from the low-temperature high pressure zone;a pressure actuated mechanism located within the boundary and configured for opening at a specified gas pressure differential between the low-temperature high-pressure zone and the high-temperature low-pressure zone, wherein opening the pressure actuated mechanism allows for gas to escape from the low-temperature high-pressure zone into the high-temperature low-pressure zone; anda temperature actuated mechanism located within the boundary and configured for opening at a specified gas temperature in the low-temperature high-pressure zone and the high-temperature low-pressure zone, wherein opening the temperature actuated mechanism allows for the gas located in the low-temperature high-pressure zone to enter the high-temperature low-pressure zone, and a cooling flow being provided to the high-temperature low pressure zone as the gas travels from the low-temperature high-pressure zone to the high-temperature low pressure zone, wherein the pressure actuated mechanism and the temperature actuated mechanism are both fluidly connected to a passageway in communication with a plurality of cooling holes located in the boundary, the passageway connecting the high-temperature low-pressure zone and the low-temperature high-pressure zone, at least one of another pressure actuated mechanism and another temperature actuated mechanism being located within at least one of the plurality of cooling holes. 7. The turbine of claim 6, wherein the boundary separates one of a plenum and a forward wheel space, a turbine nozzle diaphragm and a wheel-space area, two opposing turbine cavities, an aft wheel space and a bearing cavity, and the bearing cavity and an exhaust airfoil cooling cavity. 8. The turbine of claim 6, wherein the gas located within the high-pressure low temperature zone is a cooling air. 9. The turbine of claim 6, wherein the specified temperature is occurs during at least one of high ambient conditions and gas turbine high load operating conditions. 10. The turbine of claim 6, wherein the specified pressure differential is based at least in part by a gas turbine turndown low load operation condition. 11. The turbine of claim 6, wherein the pressure actuated mechanism and the temperature actuated mechanism are combined into a single, unitary valve and are actuated in a configuration that is one of independent of one another and dependent on one another. 12. The turbine of claim 6, wherein the pressure actuated mechanism and the temperature actuated mechanism are separate valves. 13. A gas turbine, comprising: a high temperature low-pressure zone and a low temperature high-pressure zone, a gas being located in both of the high temperature low-pressure zone and the low temperature high-pressure zone, the gas located in the low temperature high-pressure zone having a greater gas pressure than the gas located in the high temperature low-pressure zone;a boundary located within the gas turbine and separating the high temperature low-pressure zone from the low temperature high pressure zone;a pressure actuated valve mechanism located within the boundary and configured for opening at a specified gas pressure, wherein opening the pressure actuated valve mechanism allows for the gas to escape from the low temperature high-pressure zone into the high temperature low-pressure zone;a temperature actuated mechanism located within the boundary and configured for opening at a specified gas temperature in the low-temperature high-pressure zone and the high-temperature low-pressure zone, wherein the pressure actuated mechanism and the temperature actuated mechanism are both fluidly connected to a passageway in communication with a plurality of cooling holes located in the boundary, the passageway connecting the high-temperature low-pressure zone and the low-temperature high-pressure zone, at least one of another pressure actuated mechanism and another temperature actuated mechanism being located within at least one of the plurality of cooling holes. 14. The turbine of claim 13, wherein the specified pressure is measured within the low temperature high-pressure zone, and wherein the specified pressure is below a value based on a gas turbine turndown low load operating condition. 15. The turbine of claim 13, wherein the pressure actuated valve mechanism is an over-protection valve, and the specified pressure is a pressure limit measured in the low temperature high-pressure zone. 16. The turbine of claim 15, wherein the pressure limit is set based on the operating limits of the gas turbine.
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