公开(公告)号：US11719107B2

公开(公告)日：2023-08-08

申请号：US17283365

申请日：2019-10-07

Applicant: SAFRAN AIRCRAFT ENGINES

Inventor： Sébastien Emile Philippe Tajan ,  Régis Eugène Henri Servant ,  Gilles Alain Marie Charier ,  Emmanuel Pierre Dimitri Patsouris

IPC: F01D25/16 ,  F01D7/00 ,  B64C11/38 ,  B64C11/44 ,  F02K3/06 ,  F04D29/36

CPC classification number: F01D7/00 ,  B64C11/38 ,  B64C11/44 ,  F01D25/16 ,  F02K3/06 ,  F04D29/36 ,  F05D2220/32 ,  F05D2240/30 ,  F05D2240/54 ,  F05D2250/231 ,  F05D2260/40311 ,  F05D2270/52 ,  F05D2270/56

Abstract: A turbine engine including: a rotor having at least one variable-pitch blade which is guided to rotate on bearings relative to a fixed structure; a system for controlling the pitch of the at least one blade, the control system being rigidly secured to the rotor and including a first actuator driven by energy, and the control system further being disposed axially upstream of the bearings; a device for transferring the energy, which is disposed axially between the bearings, the transfer device including a stationary element and a mobile element; wherein the rotor is annular and delimits an inner space which is open towards the upstream side and inside of which the control system is disposed.

公开(公告)号：US20180128277A1

公开(公告)日：2018-05-10

申请号：US15348216

申请日：2016-11-10

Applicant: Eten Technology Ltd

Inventor： Hui-Tsu Chia

IPC: F04D27/00 ,  F04D25/08 ,  F04D29/36 ,  F04D29/32

CPC classification number: F04D29/362 ,  F04D25/088 ,  F04D29/36

Abstract: A ceiling fan capable of adjusting angles of fan blades includes a hub, a downrod, a rotating motor selectively driving the hub to rotate relative to the downrod, multiple blade assemblies separately mounted on and arranged around the hub, and an adjusting assembly mounted in the hub and including an outer tube, an inner tube, a support, and a driving motor. A driving rod of each of the blade assemblies is mounted in a driving annular recess of the support. When a driving screw of the driving motor rotates, the driving screw drives the outer tube to rotate and drives the inner tube to move upwardly or downwardly accordingly, so as to provide an optimized volume of air current that meets power saving requirement under a constant revolution speed of the rotating motor.

公开(公告)号：US20170234324A1

公开(公告)日：2017-08-17

申请号：US15043036

申请日：2016-02-12

Applicant: General Electric Company

Inventor： Daniel Alan Niergarth ,  Darek Tomasz Zatorski ,  Christopher James Kroger

IPC: F04D29/36 ,  F04D29/32

CPC classification number: F04D29/36 ,  B64C11/38 ,  F04D29/325 ,  F04D29/362 ,  Y02T50/66

Abstract: The variable pitch propeller assembly includes a hub. The variable pitch propeller assembly also includes a plurality of propeller blade assemblies spaced circumferentially about the hub. Each of the plurality of propeller blade assemblies configured to rotate a respective propeller blade. The variable pitch propeller assembly also includes a hydraulic fluid port assembly integrally formed and including at least three hydraulic fluid ports configured to receive respective flows of hydraulic fluid from a stationary hydraulic fluid transfer sleeve. The variable pitch propeller assembly also includes a pitch actuator assembly coupled in flow communication with at least three hydraulic fluid ports through respective hydraulic fluid transfer tubes. The pitch actuator coupled to the plurality of propeller blade assemblies to selectively control a pitch of the propeller blades. The pitch actuator assembly includes a travel stop configured to limit a rotation of at least one of the pitch actuator assemblies.

公开(公告)号：US20160025102A1

公开(公告)日：2016-01-28

申请号：US14775253

申请日：2014-03-13

Applicant: CNH INDUSTRIAL AMERICA LLC

Inventor： Alessandro BENEVELLI ,  Sergio MAGRINI ,  Riccardo MORSELLI

IPC: F04D29/36 ,  F04D25/02 ,  F04D29/32 ,  F04D29/053 ,  F04D19/00 ,  F04D27/00

CPC classification number: F04D29/36 ,  F01P7/06 ,  F04D19/002 ,  F04D25/02 ,  F04D27/002 ,  F04D29/053 ,  F04D29/325 ,  F04D29/362 ,  F16C1/10 ,  F16C1/16

Abstract: A variable pitch fan is provided, which comprises a plurality of blades (2), a supporting device (3) for supporting the blades (2), a rotation device (18) for rotating the supporting device (3) around a rotation axis (X), so that the blades (2) rotate with the supporting device (3) to control an air flow, and an adjusting device for adjusting a pitch of the blades by tilting each blade (2) around a respective tilt axis (Z), the adjusting device comprising a driven element (4) fixed relative to a blade (2).The adjusting device further comprises a mechanical driving element (5) supported by the supporting device (3) so as to rotate with the supporting device (3), the mechanical driving element (5) being linearly displaceable relative to the supporting device (3) and being coupled to the driven element (4) so that a linear motion of the mechanical driving element (5) is converted into a rotary motion of the driven element (4) around the tilt axis (Z).

Abstract translation: 提供了一种可变节距风扇，其包括多个叶片（2），用于支撑叶片（2）的支撑装置（3），用于使支撑装置（3）围绕旋转轴线旋转的旋转装置（18） X），使得叶片（2）与支撑装置（3）一起旋转以控制空气流;以及调节装置，用于通过围绕各个倾斜轴线（Z）倾斜每个叶片（2）来调节叶片的间距， ，所述调节装置包括相对于叶片（2）固定的从动元件（4）。 调节装置还包括由支撑装置（3）支撑以便与支撑装置（3）一起旋转的机械驱动元件（5），机械驱动元件（5）相对于支撑装置（3）可线性地移位， 并且联接到所述从动元件（4），使得所述机械驱动元件（5）的线性运动被转换成所述从动元件（4）绕所述倾斜轴线（Z）的旋转运动。

公开(公告)号：US20150251752A1

公开(公告)日：2015-09-10

申请号：US14463981

申请日：2014-08-20

Applicant: AIRBUS HELICOPTERS

Inventor： Jacques GAFFIERO ,  Andre AMARI

IPC: B64C27/50

CPC classification number: B64C27/50 ,  B64C27/48 ,  F04D29/34 ,  F04D29/36

Abstract: A device (20) for folding a blade (5), the device comprising a fitting (30) and a cuff (50) connected to said fitting (30). The fitting (30) has at least one horizontal pin axis (31) perpendicular to a radial direction (AX2) and a clevis (35) axially offset relative to the horizontal pin axis (31) in the radial direction (AX2). The cuff (50) has an insert (51) inserted in said clevis (35), a vertical pin (70) passing through said clevis (35) and said insert (51). The cuff (50) includes at least one horizontal fastener pin axis (55) axially offset relative to said insert (51) along the radial direction (AX2), at least one lateral arm (80) connects said horizontal pin axis (31) to said fastener pin axis (55).

Abstract translation: 一种用于折叠刀片（5）的装置（20），所述装置包括连接到所述配件（30）的配件（30）和袖带（50）。 配件（30）具有垂直于径向方向（AX2）的至少一个水平销轴线（31）和沿径向方向（AX2）相对于水平销轴线（31）轴向偏移的U形夹具（35）。 袖带（50）具有插入所述U形夹（35）中的插入件（51），穿过所述U形夹（35）和所述插入件（51）的垂直销（70）。 袖带（50）包括沿径向方向（AX2）相对于所述插入件（51）轴向偏移的至少一个水平紧固销轴线（55），至少一个横向臂（80）将所述水平销轴线（31）连接到 所述紧固件销轴线（55）。

公开(公告)号：US08807939B2

公开(公告)日：2014-08-19

申请号：US13161430

申请日：2011-06-15

Applicant: Ravindra Gardas

Inventor： Ravindra Gardas

IPC: F03B3/14 ,  F04D29/36 ,  F04D29/64

CPC classification number: F04D29/36 ,  F04D29/646

Abstract: An adjustable fan with a rotary hub capable of supporting rotary blades in a plurality of orientations relative to a rotational axis of the fan.

Abstract translation: 具有旋转轮毂的可调节风扇，其能够相对于风扇的旋转轴线以多个取向支撑旋转叶片。

公开(公告)号：US08753085B2

公开(公告)日：2014-06-17

申请号：US12864478

申请日：2008-12-19

Applicant: Torbjorn Lovgren ,  Pontus Claesson

Inventor： Torbjorn Lovgren ,  Pontus Claesson

IPC: F04D29/36

CPC classification number: F04D29/36 ,  B63H3/04 ,  B64C11/32 ,  F03D7/0224 ,  F05B2260/76 ,  F05B2260/79 ,  F05B2270/602 ,  F05B2270/604 ,  F05B2270/606 ,  Y02E10/723

Abstract: A device for changing a pitch of a blade of an impeller/propeller is disclosed. The device includes a linear actuator, a first bearing and a second bearing, allowing a relative axial movement between the first bearing and second bearing. The first bearing is mounted between a supporting structure of the rotor shaft and a non-rotary mechanical element, allowing a relative rotation between the supporting structure and the linear actuator. The second bearing is mounted between the second portion and a lever having a rotary point. Operating the linear actuator leads to an angular movement of the lever causing a change of the pitch of a blade, and when operating the at least one linear actuator, a force is generated that acts upon the non-rotary element, so that the rotor shaft is unaffected by the force.

Abstract translation: 公开了一种用于改变叶轮/螺旋桨叶片的桨距的装置。 该装置包括线性致动器，第一轴承和第二轴承，允许第一轴承和第二轴承之间的相对轴向运动。 第一轴承安装在转子轴的支撑结构和非旋转机械元件之间，允许支撑结构和线性致动器之间的相对旋转。 第二轴承安装在第二部分和具有旋转点的杠杆之间。 操作线性致动器导致杆的角度运动导致叶片的桨距的变化，并且当操作至少一个线性致动器时，产生作用在非旋转元件上的力，使得转子轴 不受武力的影响。

公开(公告)号：US08721305B2

公开(公告)日：2014-05-13

申请号：US12773094

申请日：2010-05-04

Applicant: Richard A. Oleson ,  Richard W. Fizer

Inventor： Richard A. Oleson ,  Richard W. Fizer

IPC: F04D29/36

CPC classification number: F04D25/088 ,  F04D27/002 ,  F04D27/004 ,  F04D27/007 ,  F04D29/34 ,  F04D29/36 ,  H05B39/08

Abstract: A fan comprises a hub, fan blades, and inserts. The hub comprises outwardly extending mounting tabs that lie along a common horizontal plane. The fan blades are hollow, such that each mounting tab is inserted in the hollow interior of a corresponding fan blade. Each insert is positioned in the hollow interior of each fan blade, between each mounting tab of the hub and the interior surface of the corresponding fan blade. Each insert is configured to position and maintain the chord line of each corresponding fan blade at an oblique angle relative to the horizontal plane of the hub. A kit may include several insert sets to choose from to provide adjustable angle of attack. A fan control system includes a dimmer switch and a control module, which allows the dimmer switch to be used to infinitely adjust the speed of a fan motor within a range.

Abstract translation: 风扇包括轮毂，风扇叶片和插入件。 轮毂包括沿着共同的水平面布置的向外延伸的安装翼片。 风扇叶片是中空的，使得每个安装翼片插入相应风扇叶片的中空内部。 每个插入件位于每个风扇叶片的中空内部，在轮毂的每个安装翼片和相应的风扇叶片的内表面之间。 每个插入件构造成相对于轮毂的水平面以相对于倾斜角定位和维持每个对应的风扇叶片的弦线。 套件可以包括几个插入组，以提供可调节的迎角。 风扇控制系统包括调光开关和控制模块，其允许调光开关在一定范围内无级调节风扇电动机的速度。

公开(公告)号：US08235660B2

公开(公告)日：2012-08-07

申请号：US12803834

申请日：2010-07-06

Applicant: Michael J. Hort ,  Daniel Gasser ,  John M. Levey

Inventor： Michael J. Hort ,  Daniel Gasser ,  John M. Levey

IPC: F01D5/10

CPC classification number: F04D25/088 ,  F04D29/36 ,  F04D29/384 ,  F04D29/662

Abstract: Described is a fan with a blade suitable for use as a ceiling fan. The blade may be regarded as a single blade, although shaft is not attached to blade at one end thereof; rather, shaft is attached to blade at a point between first end and second end. Blade is balanced by counterweights located in blade. In one embodiment, blade is connected to shaft by means that permit angular movement, such as a teeter hinge.

Abstract translation: 描述的是具有适合用作吊扇的叶片的风扇。 刀片可以被认为是单个刀片，尽管轴在其一端未连接到刀片; 相反，轴在第一端和第二端之间的点附接到叶片。 刀片由位于刀片中的配重进行平衡。 在一个实施例中，叶片通过允许角度运动的装置连接到轴，例如跷跷板铰链。

公开(公告)号：US07997864B2

公开(公告)日：2011-08-16

申请号：US12319445

申请日：2009-01-07

Applicant: John C. DeLeon

Inventor： John C. DeLeon

IPC: F04D29/36

CPC classification number: F04D25/088 ,  F04D29/36

Abstract: A user adjustable variable axial length and variable pitch ceiling fan blade arm. The blade arm includes a pair of extension elements. Each element is threadably engaged with each other. At the other end of the extension elements are custom flanges for the purpose of attaching a fan blade and connecting the blade arm to a ceiling fan motor. The user can adjust the axial length and radial pitch of the blade arm by screwing in or out a threaded connection between the extension elements, and once the desired length and pitch is selected, the connection is secured by a connector, such as a hand and/or tool adjustable threaded lock.

Abstract translation: 用户可调节可变轴向长度和可变间距吊扇叶片臂。 刀臂包括一对延伸元件。 每个元件彼此螺纹接合。 在延伸元件的另一端是用于安装风扇叶片并将叶片臂连接到吊扇电动机的定制凸缘。 用户可以通过拧入或拉出延伸元件之间的螺纹连接来调节刀臂的轴向长度和径向间距，并且一旦选择了所需的长度和间距，则连接通过诸如手的连接器来固定，并且 /或工具可调螺纹锁。