[특허]Electric power generating turbine engine fuel supply system

Honeywell International Inc.

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특허 상세정보

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Electric power generating turbine engine fuel supply system

특허상세정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F02C-001/00
미국특허분류(USC)	060/734; 060/039.281
출원번호	US-0277813 (2008-11-25)
등록번호	US-8286432 (2012-10-16)
발명자 / 주소	Anson, Bruce
출원인 / 주소	Honeywell International Inc.
대리인 / 주소	Ingrassia Fisher & Lorenz, P.C.
인용정보	피인용 횟수 : 2 인용 특허 : 8

초록
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A turbine engine fuel supply system includes a priority flow line, a plurality of secondary fuel loads, a fluid-powered metering pump, a mechanically-driven fuel pump, and an electric machine. The fluid-powered metering pump, upon receiving fuel at its fuel inlet, rotates at a rotational speed, discharges the fuel from its fuel outlet at a flow rate dependent on the rotational speed, and supplies a first drive torque. The mechanically-driven fuel pump receives a second drive torque and, in response, draws fuel into its fuel inlet and discharges the fuel ...

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1. A turbine engine fuel supply system, comprising: a priority flow line configured to supply fuel to one or more gas turbine engine fuel manifolds to define a primary fuel load;a plurality of secondary fuel loads;a fluid-powered metering pump having a fuel inlet and a fuel outlet, the fluid-powered metering pump coupled to receive fuel at its fuel inlet and, upon receipt of the fuel at its fuel inlet, to (i) rotate at a rotational speed, (ii) discharge the fuel from its fuel outlet for supply to the priority flow line at a flow rate dependent on the rotational speed, and (iii) supply a first drive torque;a mechanically-driven fuel pump having a fuel inlet and a fuel outlet, the mechanically-driven fuel pump fuel outlet in fluid communication with the fluid-powered metering pump fuel inlet, the mechanically-driven fuel pump adapted to receive a second drive torque and operable, upon receipt of the second drive torque, to draw fuel into its fuel inlet and discharge the fuel from its outlet to the plurality of secondary fuel loads and to the fluid-powered metering pump fuel inlet to drive the fluid-powered metering fuel pump; andan electric machine connected to receive the first drive torque from the fluid-powered metering pump and operable, upon receipt thereof, to generate electrical power. 2. The system of claim 1, further comprising: a differential pressure control valve in fluid communication with the fluid-powered metering pump fuel inlet and the fluid-powered metering pump fuel outlet, the differential pressure control valve operable to maintain a constant differential pressure across the fluid-powered metering pump. 3. The system of claim 1, further comprising: an electrical load connected to selectively receive the electrical power generated by the electric machine; anda controller operable to selectively connect and vary the electrical load to thereby control the rotational speed and the flow rate of the fluid-powered metering pump. 4. The system of claim 1, wherein the electrical load comprises one or more resistive loads. 5. The system of claim 1, wherein the electric machine comprises a brushless DC machine. 6. The system of claim 1, further comprising: a fuel shut-off valve mounted on the priority flow line, the fuel shut-off valve having at least an inlet and an outlet, the fuel shut-off valve inlet in fluid communication with the fluid-powered metering pump fluid outlet, the fuel shut-off valve movable between an open position, in which fuel discharged from the fluid-powered metering pump fuel outlet flows through the fuel shut-off valve outlet, and a closed position, in which fuel discharged from the fluid-powered metering pump fuel outlet does not flow through the fuel shut-off valve outlet. 7. The system of claim 1, wherein the mechanically-driven pump comprises: a fluid pump having a fuel inlet and a fuel outlet, the fluid pump coupled to receive a pump drive torque and operable, upon receipt of the drive torque, to draw fuel into its fuel inlet and discharge the fuel from its fuel outlet for supply to the fluid-powered metering pump fuel inlet and the plurality of secondary fuel loads; andan input shaft adapted to be coupled to a gas turbine engine gearbox to receive an engine drive torque therefrom and supply the pump drive torque to the fluid pump. 8. The system of claim 1, wherein the secondary fuel loads comprise: a surge valve actuator;a bleed valve actuator; anda gas turbine engine inlet guide vane actuator. 9. The system of claim 1, further comprising: a fuel tank adapted to have the fuel stored therein and in fluid communication with the fluid-powered metering pump fuel inlet and the mechanically-driven fuel pump fuel inlet. 10. The system of claim 9, further comprising: a boost pump disposed between the fuel tank and the fluid-powered metering pump fuel inlet and the mechanically-driven fuel pump fuel inlet. 11. A gas turbine engine system, comprising: a gas turbine engine including one or more fuel manifolds that define a primary fuel load, and a gearbox;a plurality of secondary fuel loads;a fluid-powered metering pump having a fuel inlet and a fuel outlet, the fluid-powered metering pump coupled to receive fuel at its fuel inlet and, upon receipt of the fuel at its fuel inlet, to (i) rotate at a rotational speed, (ii) discharge the fuel from its fuel outlet for supply to the one or more fuel loads at a flow rate dependent on the rotational speed, and (iii) supply a first drive torque;a mechanically-driven fuel pump having a fuel inlet and a fuel outlet, the mechanically-driven fuel pump fuel outlet in fluid communication with the fluid-powered metering pump fuel inlet, the mechanically-driven fuel pump adapted to receive a second drive torque and operable, upon receipt of the second drive torque, to draw fuel into its fuel inlet and discharge the fuel from its outlet to the plurality of secondary fuel loads and to the fluid-powered metering pump fuel inlet to drive the fluid-powered metering fuel pump; andan electric machine connected to receive the first drive torque from the fluid-powered metering pump and operable, upon receipt thereof, to generate electrical power. 12. The system of claim 11, further comprising: a differential pressure control valve in fluid communication with the fluid-powered metering pump fuel inlet and the fluid-powered metering pump fuel outlet, the differential pressure control valve operable to maintain a constant differential pressure across the fluid-powered metering pump. 13. The system of claim 11, further comprising: an electrical load connected to selectively receive the electrical power generated by the electric machine; anda controller operable to selectively connect and vary the electrical load to thereby control the rotational speed and the flow rate of the fluid-powered metering pump. 14. The system of claim 11, wherein the electrical load comprises one or more resistive loads. 15. The system of claim 11, wherein the electric machine comprises a brushless DC machine. 16. The system of claim 11, further comprising: a fuel shut-off valve mounted on the priority flow line, the fuel shut-off valve having at least an inlet and an outlet, the fuel shut-off valve inlet in fluid communication with the fluid-powered metering pump fluid outlet, the fuel shut-off valve movable between an open position, in which fuel discharged from the fluid-powered metering pump fuel outlet flows through the fuel shut-off valve outlet, and a closed position, in which fuel discharged from the fluid-powered metering pump fuel outlet does not flow through the fuel shut-off valve outlet. 17. The system of claim 11, wherein the mechanically-driven pump comprises: a fluid pump having a fuel inlet and a fuel outlet, the fluid pump coupled to receive a pump drive torque and operable, upon receipt of the drive torque, to draw fuel into its fuel inlet and discharge the fuel from its fuel outlet for supply to the fluid-powered metering pump fuel inlet and the plurality of secondary fuel loads; andan input shaft adapted to be coupled to a gas turbine engine gearbox to receive an engine drive torque therefrom and supply the pump drive torque to the fluid pump. 18. The system of claim 11, further comprising: a fuel tank adapted to have the fuel stored therein and in fluid communication with the fluid-powered metering pump fuel inlet and the mechanically-driven fuel pump fuel inlet. 19. The system of claim 18, further comprising: a boost pump disposed between the fuel tank and the fluid-powered metering pump fuel inlet and the mechanically-driven fuel pump fuel inlet. 20. A turbine engine fuel supply system, comprising: a priority flow line configured to supply fuel to one or more gas turbine engine fuel manifolds to define a primary fuel load;a plurality of secondary fuel loads;a fluid-powered metering pump having a fuel inlet and a fuel outlet, the fluid-powered metering pump coupled to receive fuel at its fuel inlet and, upon receipt of the fuel at its fuel inlet, to (i) rotate at a rotational speed, (ii) discharge the fuel from its fuel outlet for supply to the priority flow line at a flow rate dependent on the rotational speed, and (iii) supply a first drive torque;a mechanically-driven fuel pump having a fuel inlet and a fuel outlet, the mechanically-driven fuel pump fuel outlet in fluid communication with the fluid-powered metering pump fuel inlet, the mechanically-driven fuel pump adapted to receive a second drive torque and operable, upon receipt of the second drive torque, to draw fuel into its fuel inlet and discharge the fuel from its outlet to the plurality of secondary fuel loads and to the fluid-powered metering pump fuel inlet to drive the fluid-powered metering fuel pump;a differential pressure control valve in fluid communication with the fluid-powered metering pump fuel inlet and the fluid-powered metering pump fuel outlet, the differential pressure control valve operable to maintain a constant differential pressure across the fluid-powered metering pump;an electric machine connected to receive the first drive torque from the fluid-powered metering pump and operable, upon receipt thereof, to generate electrical power;an electrical load connected to selectively receive the electrical power generated by the electric machine; anda controller operable to selectively connect and vary the electrical load to thereby control the rotational speed and the flow rate of the fluid-powered metering pump.

이 특허에 인용된 특허 (8)

이 특허를 인용한 특허 피인용횟수: 2

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Electric power generating turbine engine fuel supply system

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Electric power generating turbine engine fuel supply system

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