Inlet guide vane drive system with spring preload on mechanical linkage
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
F01D-005/00
출원번호
US-0616384
(2009-11-11)
등록번호
US-8534990
(2013-09-17)
발명자
/ 주소
Duong, Loc Quang
Hu, Xiaolan
출원인 / 주소
Hamilton Sundstrand Corporation
대리인 / 주소
Carlson, Gaskey & Olds, PC
인용정보
피인용 횟수 :
1인용 특허 :
15
초록▼
A variable vane system includes a plurality of vanes each being pivotal about an axis. A mechanical linkage drives the plurality of vanes to rotate about the axis. The mechanical linkage includes a ring gear to rotate, and in turn drive the plurality of vanes. There is at least one rod to drive the
A variable vane system includes a plurality of vanes each being pivotal about an axis. A mechanical linkage drives the plurality of vanes to rotate about the axis. The mechanical linkage includes a ring gear to rotate, and in turn drive the plurality of vanes. There is at least one rod to drive the ring gear to rotate. The rod is driven by a hydraulic servo motor. A spring bias force is provided in the mechanical linkage to resist either translational or rotational oscillation.
대표청구항▼
1. A variable vane system comprising: a plurality of vanes each being pivotal about an axis;a mechanical linkage for driving said plurality of vanes to rotate about said axis, said mechanical linkage including a ring gear, a plurality of sector gears for rotating, and in turn driving said plurality
1. A variable vane system comprising: a plurality of vanes each being pivotal about an axis;a mechanical linkage for driving said plurality of vanes to rotate about said axis, said mechanical linkage including a ring gear, a plurality of sector gears for rotating, and in turn driving said plurality of vanes to rotate about said axis, and the mechanical linkage including at least one first rod for driving said ring gear to rotate, said first rod driven by a hydraulic servo motor, and the mechanical linkage including a spring bias force, and resisting oscillation;said mechanical linkage includes a hinge knuckle, said first rod causing said hinge knuckle to rotate, to in turn transmit rotation to a second rod, said second rod connected to drive said ring gear, said ring gear configured to rotate, and said spring being a torsional spring to resist torsional oscillation of said ring gear; andsaid mechanical linkage includes a pivot housing which is configured to pivot about a pin mounted within a fixed housing, said spring including a first end sitting against a portion of said fixed housing, and a second end sitting against a surface on said pivot housing to resist oscillation. 2. The system as set forth in claim 1, further including attachment points for each of said first and second rods to said pivot housing, said attachment points both being on the same side of said pin. 3. A variable vane system comprising: a plurality of vanes each being pivotal about an axis;a mechanical linkage for driving said plurality of vanes to rotate about said axis, said mechanical linkage including a ring gear and a plurality of sector gears for rotating, and in turn driving said plurality of vanes to rotate about said axis, said ring gear being fixed to a device, and the mechanical linkage including at least one first rod for driving said device, said device configured to rotate, said first rod being driven by a hydraulic servo motor, and there being a spring bias force in said mechanical linkage resisting oscillations;said spring being a progressive spring including a non-linear spring stiffness;said mechanical linkage includes a hinge knuckle, said first rod driving said hinge knuckle, said hinge knuckle configured to rotate, to in turn transmit rotation to a second rod, said second rod being connected to drive said ring gear, said ring gear configured to rotate, and said spring being a torsional spring to resist oscillation of both said first and second rods; andwherein said mechanical linkage includes a pivot housing which pivots about a pin mounted within a fixed housing, said spring including one end sitting against a portion of said fixed housing, and a second end sitting against a surface on said pivot housing to resist oscillation. 4. The system as set forth in claim 3, wherein attachment points for each of said first and second rods to said pivot housing are provided, and said attachment points both being on the same side of said pin.
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이 특허에 인용된 특허 (15)
Wilkinson Wilfred H. (Turnditch GBX), A nozzle guide vane structure for a gas turbine engine.
Manente ; Jr. Joseph C. (Monroe CT) Berkner Horst D. (Stratford CT), Partially segmented supporting and sealing structure for a guide vane array of a gas turbine engine.
Arnold,Steven M.; Penney,Nicholas, Variable area nozzle including a plurality of convexly vanes with a crowned contour, in a vane to vane sealing arrangement and with nonuniform lengths.
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