[특허]Airfoil for controlling refueling boom

[미국특허] Airfoil for controlling refueling boom 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B64D-039/00
출원번호	US-0840589 (1977-10-11)
발명자 / 주소	Ishimitsu Kichio K. (Mercer Island WA) Tinoco Edward N. (Bellevue WA)
출원인 / 주소	The Boeing Company (Seattle WA 02)
인용정보	피인용 횟수 : 23 인용 특허 : 1

초록 ▼

A ruddevator assembly for controlling movement of an aircraft refueling boom, comprising two ruddevators mounted to the boom, each at a dihedral angle of about 42°. Each ruddevator has an outboard section, which is an advanced technology cambered airfoil for high lift at transonic speeds, with a raked wing tip. The inboard portion of the airfoil has a forwardly extending strake-like member having a sharp leading edge which in planform comprises three sections. There is a curved forward edge section and two rearwardly extending edge sections, which in operation are positioned at high sweep angles. The side edge portions of the strake-like member create vortices which travel over the inboard portion of the ruddevator to augment lift over a wide range of surface deflection of the ruddevator (i.e., angle of attack). The inboard vortex also smooths the flow over the boom housing, and another aerodynamic feature is that the hinge moments exerted on the ruddevators are relatively linear over a wide range of deflection, thus enhancing the control characteristics of the ruddevator assembly.

대표청구항 ▼

In a refueling boom having a longitudinal axis and mounted to an aircraft, a ruddevator assembly to act on flow of air over the ruddevator assembly to control movement and position of the boom, said ruddevator assembly comprising: a pair of ruddevators mounted to said boom at a dihedral angle to create both vertical and lateral lift components, each of said ruddevators having a spanwise axis and a chordwise axis, each ruddevator being mounted for rotation about an axis generally aligned with its spanwise axis, each ruddevator comprising: a. an outboard ruddevator section having an airfoil configuration with a leading edge shaped to cause attached flow over the outboard ruddevator section to create a lifting force caused by airflow over said outboard ruddevator section, b. an inboard ruddevator section having an airfoil configuration to create a lifting force caused by airflow over said inboard ruddevator section, c. said inboard ruddevator section having a forwardly extending strake-like member mounted to the forward end of the inboard ruddevator section, d. said strake-like member having a relatively sharp leading edge of a sufficiently small cross sectional radius to create detached flow of the air flow over said sharp leading edge, said sharp leading edge having three portions, namely, 1. a forward edge portion positioned generally transverse to the flow of air thereover, 2. an outboard lateral edge portion extending from the forward edge portion to the leading edge of the outboard ruddevator section at a sweep angle sufficient to create vortex flow of air passing over said outboard lateral edge portion, 3. an inboard lateral edge portion extending from the forward edge portion rearwardly along the inside edge of the ruddevator, the angular position of the inboard lateral edge portion being such that with the refueling boom extending at a downward angle from its associated aircraft so as to be positioned at an angle to the airstream, and with each ruddevator being positioned at an angle of attach such that the chordwise axis of each ruddevator is slanted with respect to a plane containing the lengthwise axis of the boom, the inboard lateral edge portion of the strake-like member extends into the airstream at a sweep angle sufficient to create vortex flow of air passing over said inboard lateral edge portion, whereby said ruddevators are able to create relatively high lift forces at relatively high angles of attack and under conditions of yaw of the boom where the sweep angles of the ruddevators are subject to variation.

이 특허에 인용된 특허 (1) 인용/피인용 타임라인 분석

Lippert ; Jr. Joseph (Locust Valley NY), Means to reduce and/or eliminate vortices, caused by wing body combinations.
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이 특허를 인용한 특허 (23) 인용/피인용 타임라인 분석

Carns, James A.; Cutler, Theron L.; Shelly, Mark A.; Van Kampen, Benjamin P., Adjustable fittings for attaching support members to fluid conduits, including aircraft fuel conduits, and associated systems and methods.
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Ishimitsu Kichio K. (Mercer Island WA) Tinoco Edward N. (Bellevue WA), Airfoil for controlling refueling boom.
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Takacs, John F.; Stecko, Stephen M.; Jefferson, Gordon R.; Roberts, Gregory A.; Shoore, Joseph D., Controllable refueling drogues and associated systems and methods.
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Takacs,John F.; Stecko,Stephen M.; Jefferson,Gordon R.; Roberts,Gregory A.; Shoore,Joseph D., Controllable refueling drogues and associated systems and methods.
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Ruiz Calavera, Luis Pablo; Mariscal Sanchez, Francisco Javier, Device to reduce the lateral force generated by aerial refueling boom cross-section.
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Powell, Arthur G., Enhanced ruddevator for improved air refueling boom flight control.
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Carns, James A.; Cutler, Theron L.; Shelly, Mark A.; Van Kampen, Benjamin P., Fittings with redundant seals for aircraft fuel lines, fuel tanks, and other systems.
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Carns, James A.; Cutler, Theron L.; Shelly, Mark A.; Van Kampen, Benjamin P., Fittings with redundant seals for aircraft fuel lines, fuel tanks, and other systems.
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von Thal,German; Benjamin,Ronald G, Graphical symbology apparatus for use in an airborne refueling system.
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Schroeder, Steven B., In-flight refueling system, alignment system, and method for automatic alignment and engagement of an in-flight refueling boom.
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Schuster,John H.; Wexler,Mark H., In-flight refueling system, bladder device and method for preventing oscillations in in-flight refueling system components.
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Von Thal,German; Slusher,Harry W., In-flight refueling system, boom, and method for extending range of motion of an in-flight refueling boom.
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Moss William Gregory (Centerville OH) Roberts Kenneth Dale (Xenia OH) Briggs Charles Whitford (Waynesville OH), Pod mounted refueling system.
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Von Thal, German, System and method for facilitating aerial refueling.
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Carns,James A.; Cutler,Theron L.; Shelly,Mark A.; Van Kampen,Benjamin P., System and methods for distributing loads from fluid conduits, including aircraft fuel conduits.
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Rix, Ohad, Systems and methods for air vehicles.
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Rix, Ohad, Systems and methods for air vehicles.
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Rix, Ohad, Systems and methods for air vehicles.
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Speer,Thomas E., Systems and methods for automatically and semiautomatically controlling aircraft refueling.
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Schuster,John H.; Feltrop,Ed, Systems and methods for controlling an aerial refueling device.
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Crangle,Gage B.; Doehring,Kim I., Systems and methods for controlling flexible communication links used for aircraft refueling.
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Near, Daniel R.; Petty, Mark S., Systems and methods for providing back-up hydraulic power for aircraft, including tanker aircraft.
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von Thal,German; Benjamin,Ronald G, Vision system and method incorporating graphics symbology for use in a tanker refueling system.
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A	생활필수품
A62	인명구조; 소방(사다리 E06C)
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A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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[미국특허] Airfoil for controlling refueling boom 원문보기