[특허]Concentric shafts for remote independent variable vane actuation

Concentric shafts for remote independent variable vane actuation 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	F16H-037/06 F01D-017/16 F16H-049/00 F16H-019/00
출원번호	US-0079417 (2016-03-24)
등록번호	US-10107130 (2018-10-23)
발명자 / 주소	Suciu, Gabriel L Zimmitti, Jonathan F Chandler, Jesse M
출원인 / 주소	United Technologies Corporation
대리인 / 주소	Bachman & LaPointe, P.C.
인용정보	피인용 횟수 : 0 인용 특허 : 88

초록

An actuator system including a harmonic drive operable to drive a variable vane system of a gas turbine engine.

대표청구항 ▼

1. A gas turbine engine defined about a central longitudinal axis, comprising: a first actuator;a first harmonic drive driven by the first actuator, the harmonic drive comprising a strain wave gearing mechanism;a first drive shaft driven by the first harmonic drive;a first variable vane stage;a first unison ring operable to drive the first variable vane stage, the first unison ring driven by the first drive shaft;a second actuator;a second harmonic drive driven by the second actuator, the harmonic drive comprising a strain wave gearing mechanism;a second drive shaft driven by the second harmonic drive, the first drive shaft coaxial with the second drive shaft, the first and second drive shaft extend through a firewall;a second variable vane stage; anda second unison ring operable to drive the second variable vane stage, the second unison ring driven by the second drive shaft, wherein the strain wave gearing mechanism include a fixed circular spline, a flex spline attached to an output shaft, and a wave generator attached to an input shaft, the flex spline driven by the wave generator with respect to the circular spline. 2. A gas turbine engine defined about a central longitudinal axis, comprising: a first actuator;a first harmonic drive driven by the first actuator, the harmonic drive comprising a strain wave gearing mechanism;a first drive shaft driven by the first harmonic drive;a first variable vane stage;a first unison ring operable to drive the first variable vane stage, the first unison ring driven by the first drive shaft;a second actuator;a second harmonic drive driven by the second actuator, the harmonic drive comprising a strain wave gearing mechanism;a second drive shaft driven by the second harmonic drive, the first drive shaft coaxial with the second drive shaft, the first and second drive shaft extend through a firewall;a second variable vane stage; anda second unison ring operable to drive the second variable vane stage, the second unison ring driven by the second drive shaft, wherein the first drive shaft is parallel with the central longitudinal axis. 3. A gas turbine engine defined about a central longitudinal axis, comprising: a first actuator;a first harmonic drive driven by the first actuator, the harmonic drive comprising a strain wave gearing mechanism;a first drive shaft driven by the first harmonic drive;a first variable vane stage;a first unison ring operable to drive the first variable vane stage, the first unison ring driven by the first drive shaft;a second actuator;a second harmonic drive driven by the second actuator, the harmonic drive comprising a strain wave gearing mechanism;a second drive shaft driven by the second harmonic drive, the first drive shaft coaxial with the second drive shaft, the first and second drive shaft extend through a firewall;a second variable vane stage; anda second unison ring operable to drive the second variable vane stage, the second unison ring driven by the second drive shaft, wherein the first drive shaft and the second drive shaft include a respective first drive gear and a second drive gear operable to drive the respective first unison ring and the second unison ring, wherein the respective gear segment is meshed with the respective first drive gear and the second drive gear in a sliding relationship. 4. The gas turbine engine as recited in claim 3, wherein the first unison ring and the second unison ring include a respective gear segment meshed with the respective first drive gear and the second drive gear. 5. A gas turbine engine defined about a central longitudinal axis, comprising: a first actuator;a first harmonic drive driven by the first actuator, the harmonic drive comprising a strain wave gearing mechanism;a first drive shaft driven by the first harmonic drive;a first variable vane stage;a first unison ring operable to drive the first variable vane stage, the first unison ring driven by the first drive shaft;a second actuator;a second harmonic drive driven by the second actuator, the harmonic drive comprising a strain wave gearing mechanism;a second drive shaft driven by the second harmonic drive, the first drive shaft coaxial with the second drive shaft, the first and second drive shaft extend through a firewall;a second variable vane stage; anda second unison ring operable to drive the second variable vane stage, the second unison ring driven by the second drive shaft, wherein the first and second actuators, and the first and second harmonic drives, are located on a side of the firewall that provides a thermally controlled environment, wherein the thermally controlled environment is about 160 F and a side opposite the thermally controlled environment is 200 F-600 F.

이 특허에 인용된 특허 (88)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Concentric shafts for remote independent variable vane actuation 원문보기

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Concentric shafts for remote independent variable vane actuation 원문보기

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