公开(公告)号：US11536740B2

公开(公告)日：2022-12-27

申请号：US16681756

申请日：2019-11-12

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Dana Tomescu

IPC分类号： G01P3/488 ,  B64C11/30 ,  B64D27/10 ,  F01D7/00 ,  F01D17/20 ,  F01D21/00 ,  F01D17/06 ,  G01D5/14 ,  F01D17/02 ,  F04D29/36 ,  B64C27/473 ,  B64C27/57 ,  F02C9/22 ,  F02D29/02 ,  G01D5/12 ,  G01D5/20 ,  G01P3/487 ,  F02C7/32 ,  B63H3/00 ,  B64C11/06 ,  F02D41/28

摘要： A feedback device for use in a gas turbine engine, and methods and systems for controlling a pitch for an aircraft-bladed rotor, are provided. The feedback device is composed of a circular disk and a plurality of position markers. The circular disk is coupled to rotate with a rotor of the gas turbine engine, to move along a longitudinal axis of the rotor, and has first and second opposing faces defining a root surface that extends between and circumscribes the first and second faces. The plurality of position markers extend radially from the root surface, are circumferentially spaced around the circular disk, and extending along the longitudinal axis from a first end portion to a second end portion. At least part of the first end portion and/or of the second end portion comprises a material having higher magnetic permeability than that of a remainder of the position markers.

公开(公告)号：US11499986B2

公开(公告)日：2022-11-15

申请号：US16702465

申请日：2019-12-03

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Dana Tomescu

IPC分类号： B63H1/06 ,  G01P3/488 ,  B64C11/30 ,  B64D27/10 ,  F01D7/00 ,  F01D17/20 ,  F01D21/00 ,  F01D17/06 ,  G01D5/14 ,  F01D17/02 ,  F04D29/36 ,  F02C7/32 ,  B63H3/00 ,  B64C11/06 ,  F02D41/28

摘要： A system and method for providing feedback for an aircraft-bladed rotor about a longitudinal axis and having an adjustable blade pitch angle. At least one position marker is provided at the rotor, extends along an axial direction, from a first end to a second end, and has varying magnetic permeability from the first end to the second end. At least one sensor is coupled to the rotor and configured for producing, as the rotor rotates about the longitudinal axis, at least one sensor signal in response to detecting passage of the at least one position marker. A control unit is communicatively coupled to the at least one sensor and configured to generate a feedback signal indicative of the blade pitch angle in response to the at least one sensor signal received from the at least one sensor.

公开(公告)号：US11415591B2

公开(公告)日：2022-08-16

申请号：US16684531

申请日：2019-11-14

申请人： PRATT & WHITNEY CANADA CORP.

发明人： Dana Tomescu

IPC分类号： F01D21/00 ,  G01D5/14 ,  G01P3/488 ,  B64C11/30 ,  B64D27/10 ,  F01D7/00 ,  F01D17/20 ,  F01D17/06 ,  F01D17/02 ,  F04D29/36 ,  F02C7/32 ,  B63H3/00 ,  B64C11/06 ,  F02D41/28

摘要： A feedback device for use in a gas turbine engine, and methods and systems for controlling a pitch for an aircraft-bladed rotor, are provided. The feedback device is composed of a circular disk and a plurality of position markers. The circular disk is coupled to rotate with a rotor of the gas turbine engine, to move along a longitudinal axis of the rotor, and has first and second opposing faces defining a root surface that extends between and circumscribes the first and second faces. The plurality of position markers extend radially from the root surface and are circumferentially spaced around the circular disk. The position markers have a top surface elevated with respect to the root surface and opposing first and second side surfaces. The side surfaces of the position markers have a curved concave profile extending toward the root surface.

公开(公告)号：US10787275B2

公开(公告)日：2020-09-29

申请号：US15974739

申请日：2018-05-09

申请人： Ratier-Figeac SAS

发明人： Brian P. Huth ,  Abdellah El Haloui

IPC分类号： B64C11/00 ,  B64C11/04 ,  G01L1/22 ,  G01M7/00 ,  G01M1/00 ,  B63H3/00 ,  B64C11/30 ,  B64D45/00 ,  G01M5/00 ,  G01L5/13 ,  G01M1/28 ,  G07C5/00 ,  G07C5/08

摘要： A method of monitoring the health of an aircraft propeller whilst the propeller is in operation, the propeller having a plurality of blades extending radially outwardly from a central axis extending through the propeller and a propeller drive shaft, is provided. The method includes obtaining measurements representative of strain in the propeller drive shaft using multiple primary strain sensors, each primary strain sensor providing respective measurements representative of strain. The primary strain sensors are located around a circumference of the drive shaft of the propeller, and each strain sensor is located such that it crosses a plane defined by the radial direction of a blade and the central axis, the plane being bounded by the central axis. A corresponding propeller health monitoring system, an aircraft propeller comprising the system and an aircraft comprising the propeller are also provided.

公开(公告)号：US10723426B2

公开(公告)日：2020-07-28

申请号：US16065797

申请日：2016-12-22

申请人： THALES

发明人： Christophe Borel ,  Jean-Philippe Brunet ,  Benoît Theckes ,  Cyril Bouyer

IPC分类号： B63G8/16 ,  B63H5/10 ,  B63H3/00 ,  B63G8/08 ,  B63H25/42

摘要： A method controlling a thruster of a marine vehicle is provided. The marine vehicle is at least partially submerged in a liquid and includes a body and a thruster including two propellers. Each propeller includes blades intended to tum about a rotation axis of said propeller. The method includes a step of low-speed maneuver controlling, during which the thruster is controlled in such a way that each propeller generates a flow directed toward the flow generated by the other propeller and reaching the flow generated by the other propeller.

公开(公告)号：US10273932B2

公开(公告)日：2019-04-30

申请号：US14889614

申请日：2014-06-25

申请人： Edouard Kassianoff

发明人： Edouard Kassianoff

IPC分类号： B63H1/30 ,  B60F3/00 ,  F03B17/06 ,  B63H1/32 ,  F03B13/20 ,  F03D5/06 ,  B63H3/00 ,  B64C11/32 ,  B64C25/32 ,  B64C29/00 ,  F03B13/14

摘要： A curved body (830), for propelling fluids, crafts and harvesting fluid power, comprises a convex outer leading surface securely connected to a concave inner trailing surface to define an open vessel. Upon oscillation, ambient fluids are accelerated and ejected from the vessel to propel the vessel and the ambient fluids in opposite directions. Apparatus is secured to a motive power source directly or via actuating member (832), by fastening through aperture (834). The oscillating propulsor can be operated directly by a reciprocating motive power source, and indirectly by the reaction momentum imparted to a supporting base. Thrust may be vectored by rotation of the curved body (830) about the supporting base. Drag reduction using fluid dynamic shapes, intake openings, a fore fin (844), an aft fin (846), and a lubricant cavity, are embodied. Enhanced propulsion using multistage oscillating propulsors is embodied.

公开(公告)号：US20180265182A1

公开(公告)日：2018-09-20

申请号：US15714595

申请日：2017-09-25

申请人： Kitty Hawk Corporation

发明人： Steffen Kuentzel ,  Damon Vander Lind

IPC分类号： B64C11/34 ,  F16D7/00 ,  F16D15/00 ,  B64C29/00 ,  F04D29/36 ,  B64C11/32 ,  B63H3/00 ,  F04D15/00 ,  B63H1/06

CPC分类号： B64C11/343 ,  B63H1/06 ,  B63H3/002 ,  B64C11/325 ,  B64C29/0033 ,  F04D15/0055 ,  F04D29/364 ,  F04D29/366 ,  F05D2260/77 ,  F05D2260/78 ,  F05D2260/79 ,  F16D7/005 ,  F16D7/08 ,  F16D15/00 ,  F16D43/206

摘要： A bistable pitch propeller includes a ball, a spring, and a clutch module where the clutch module has a range of rotational movement between a locked end position and a released end position. The clutch module includes a detent, where the ball sits inside and outside of the detent when the clutch module is in the locked end position and released end position, respectively. In response to an input torque and a spring force from the spring, the clutch module rotates toward the released end position and the locked end position, respectively. The bistable pitch propeller also includes an aircraft blade where the aircraft blade is at the first pitch angle and the second pitch angle when the clutch module is in the locked end position and the released end position, respectively.

公开(公告)号：US20170370344A1

公开(公告)日：2017-12-28

申请号：US15533611

申请日：2015-01-12

申请人： EDOUARD KASSIANOFF

发明人： EDOUARD KASSIANOFF

IPC分类号： F03B17/06 ,  B63H3/00 ,  B64C25/32 ,  F03B13/14 ,  B60F3/00 ,  B64C29/00 ,  B64C11/32

CPC分类号： F03B17/06 ,  B60F3/0007 ,  B63H1/30 ,  B63H1/32 ,  B63H3/008 ,  B64C11/325 ,  B64C25/32 ,  B64C29/0008 ,  F03B13/14 ,  F03B13/20 ,  F03D5/06 ,  F05B2210/16 ,  F05B2220/90 ,  F05B2240/311 ,  F05B2240/931 ,  Y02E10/28 ,  Y02E10/38 ,  Y02E10/70 ,  Y02T70/5254

摘要： A Pulsed Locomotor (120), for propelling media, fluids and crafts, in fluids and on land, comprising a blade (124) securely connected to a drive shaft (122). Upon reciprocation, the ambient medium is forced towards the trailing edge of the blade (124) thereby causing a reactive locomotion of the apparatus, substantially along the plane of the blade. Apparatus is secured to motor M by fastening through aperture (130). The apparatus can be operated directly by motor M, and indirectly by the reaction momentum imparted to a supporting platform P. Thrust is directed by steering handle (128) about a bearing (126), rotatably coupling to platform P and base C. Lubricant L is supplied to outlets (134) via conduit (136) and inlet (132), to coat the apparatus with a lubricant cavity, for drag reduction. The blade (124) planes along a figure 8 reciprocation path s1e1s2e2s1. Crafts are embodied.

公开(公告)号：US09745035B2

公开(公告)日：2017-08-29

申请号：US15050391

申请日：2016-02-22

申请人： Honda Motor Co., Ltd.

发明人： Naoki Hiroshima ,  Hiroshi Yamamoto

IPC分类号： B63H3/10 ,  B63H3/02 ,  B63H20/00 ,  B63H3/00

CPC分类号： B63H3/10 ,  B63H3/02 ,  B63H20/00 ,  B63H2003/006

摘要： In an apparatus for controlling an outboard motor mounted on a boat and having an internal combustion engine and a variable pitch propeller, characteristics defining a desired pitch angle of the propeller that makes fuel consumption minimum relative to a navigation speed of the boat are memorized and the pitch angle of the propeller is controlled to the desired pitch angle that is corresponding to the navigation speed detected by a navigation speed detector in accordance with the characteristics.

公开(公告)号：US09694886B2

公开(公告)日：2017-07-04

申请号：US14375694

申请日：2012-12-27

申请人： SAMSUNG HEAVY IND. CO., LTD.

发明人： Hyuk Kwun ,  Ji-Nam Kim

IPC分类号： B63H3/04 ,  B63H3/00 ,  B63H3/10

CPC分类号： B63H3/008 ,  B63H3/002 ,  B63H3/04 ,  B63H3/10

摘要： Provided is a driving apparatus of a variable pitch propeller having blades, each of which has a pitch angle changed in a rotational direction of a propeller shaft, and a pitch adjuster for adjusting the pitch angle. The pitch adjuster includes blade actuating shafts that are connected to eccentric stubs coupled to lower ends of the blades and are disposed inside the propeller shaft so as to allow linear reciprocation and to push or pull the eccentric stubs, and a power converter that converts a rotating motion of the propeller shaft into a linearly reciprocating motion of the blade actuating shafts.