US3799446A - Two-section rudder for a vehicle with hydrodynamic or aerodynamic propulsion - Google Patents

Two-section rudder for a vehicle with hydrodynamic or aerodynamic propulsion Download PDF

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Publication number
US3799446A
US3799446A US00256332A US25633272A US3799446A US 3799446 A US3799446 A US 3799446A US 00256332 A US00256332 A US 00256332A US 25633272 A US25633272 A US 25633272A US 3799446 A US3799446 A US 3799446A
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US
United States
Prior art keywords
flaps
duct
window
fluid
rudder
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Expired - Lifetime
Application number
US00256332A
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English (en)
Inventor
A Rado
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INST PENTRU CREATIE STIINTIFICA SI TEHNICA RU
INST PENTRU CREATIE STINTIFIC
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INST PENTRU CREATIE STINTIFIC
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Application filed by INST PENTRU CREATIE STINTIFIC filed Critical INST PENTRU CREATIE STINTIFIC
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Publication of US3799446A publication Critical patent/US3799446A/en
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Expired - Lifetime legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60V—AIR-CUSHION VEHICLES
    • B60V1/00—Air-cushion
    • B60V1/14—Propulsion; Control thereof
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B64—AIRCRAFT; AVIATION; COSMONAUTICS
    • B64C—AEROPLANES; HELICOPTERS
    • B64C9/00—Adjustable control surfaces or members, e.g. rudders
    • B64C9/38—Jet flaps

Definitions

  • Each set of vanes comprises a plurality of generally flat but aerodynamically shaped vanes swingable about respective vertical axes by independent controls for the vehicle direction so that either set may completely block or only deflect the fluid stream traversing the window of the outlet spanned by the set of vanes.
  • deflectors when the fluid stream is to be deflected through more than the fluid separates from the deflecting surface and the control effect is reduced.
  • the problem is especially pronounced at low speed and hence large-area deflectors must be provided in these cases and the steering efficiency is reduced.
  • FIG.1 is a perspective view of an aerodynamic rudder for a vehicle using a ducted air screw for propulsion
  • FIG.2 is a side-elevational view of a rudder of the type shown in F IG.l but in axially shorter configuration and with a portion of the engine removed;
  • FlG.3 is an axial section taken along the line A A of FlG.2;
  • FlG.4 is an axial section similar to FIG.3 but showing the vanes in an intermediate deflected position
  • F165 is a view similar to FIGA showing the vanes in an extreme position
  • FIGS.6 and 7 are perspective views of an air-cushion vehicle using the rudder system of the present invention.
  • a ducting ring 1 receiving a propelling air screw 2 and having a discharge end which is formed with a pair of laterally and rearwardly opening windows formed by the intersection of respective planes inclined to the longitudinal axis of the duct or ring and intersecting along a vertical line perpendicular to this axis.
  • the two symmetrical vertical planes 3 each form an angle of about 30 with a plane perpendicular to the plane of the paper in FIGS. 2 and 3 and to the longitudinal axis A A.
  • the vertical intersection line 4 lies in the longitudinal symmetry plane of the ducting ring 1.
  • each of the vanes 5 is mounted for rotation about a. vertical axis 6 journaled by bearings in the trailing edges of the ducting ring 1.
  • the vertical axes 6 of the vanes 5 are formed as axles which are kinematically connected to directional steering controls 7 by levers 8 and 9 so that each of the sets of vanes may be controlled individually.
  • the directional steering controls 7 operate the sets of control flaps 5 whereby the latter may be deflected from the neutral positions (FIG.3) to an intermediate position (FIG.4) deflecting the fluid stream to the right and into a position (FIG.5) in which one of the windows is blocked and the fluid stream through the other window is deflected through about
  • the channeling of the fluid flow permits the flaps S to remain effective as deflecting surfaces through angles of up to 60 as illustrated and separation of this stream of fluid from the surface does not occur to the detriment of the steering operation.
  • FIGS. 6 and 7 the two sets of flaps 12 are provided with axes in the intersecting vertical planes 10 having the intersection line 11.
  • the vertical axles are here shown at 13 and the flaps are controlled by individual linkages as previously described and similar results are obtained as have been described for the embodiments of FIGS. 1 5.
  • a rudder for a vehicle comprising a duct traversable by fluid in the direction of vehicle movement and having an intake end and a discharge end; means in said duct for inducing a flow of fluid therethrough from said intake end to said discharge end, said discharge end being formed with a pair of windows lying in vertical planes symmetrically inclined rearwardly and intersecting one another at a line perpendicular to the longitudinal axis of said duct and forming angles of substantially 30 with a vertical plane perpendicular to said axis; a respective set of vertical generally flat but aerodynamically shaped flaps mounted in each window and having parallel vertical pivot axes about which each flap is swingable at an intermediate location along its width between a first extreme position in which the flaps of each respective set lie substantially in the respective window plane and obstruct the window, and a second position in which the flaps of each set are oriented to deflect a fluid stream through the window approximately 60 from the direction of flow with said flaps parallel to the axis of said duct; and respective controls for individually

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  • Engineering & Computer Science (AREA)
  • Aviation & Aerospace Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Transportation (AREA)
  • Mechanical Engineering (AREA)
  • Structures Of Non-Positive Displacement Pumps (AREA)
  • Processing Of Stones Or Stones Resemblance Materials (AREA)
US00256332A 1971-05-26 1972-05-24 Two-section rudder for a vehicle with hydrodynamic or aerodynamic propulsion Expired - Lifetime US3799446A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
RO67019A RO55455A2 (enrdf_load_stackoverflow) 1971-05-26 1971-05-26

Publications (1)

Publication Number Publication Date
US3799446A true US3799446A (en) 1974-03-26

Family

ID=20089115

Family Applications (1)

Application Number Title Priority Date Filing Date
US00256332A Expired - Lifetime US3799446A (en) 1971-05-26 1972-05-24 Two-section rudder for a vehicle with hydrodynamic or aerodynamic propulsion

Country Status (4)

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US (1) US3799446A (enrdf_load_stackoverflow)
FR (1) FR2139191B1 (enrdf_load_stackoverflow)
GB (1) GB1344567A (enrdf_load_stackoverflow)
RO (1) RO55455A2 (enrdf_load_stackoverflow)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4397367A (en) * 1981-05-20 1983-08-09 Ivanov Sergei K Lift and propulsion unit of air-cushion transport vehicle
US5005660A (en) * 1988-10-14 1991-04-09 Kawasaki Jukogyo Kabushiki Kaisha Propulsion air stream deflecting apparatus for air cushion vehicle
US20080149780A1 (en) * 2006-12-22 2008-06-26 Pendzich Jerome S Vertical lift vehicle
US8443931B2 (en) 2011-04-06 2013-05-21 Lockheed Martin Corporation Noise reduction of supersonic jet engines
CN115071929A (zh) * 2021-03-15 2022-09-20 中国科学院沈阳自动化研究所 一种采用流动控制的操纵舵板

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8607550D0 (en) * 1986-03-26 1986-04-30 Hydroconic Ltd Multiple rudder systems
GB2346593B (en) * 1999-02-09 2003-01-08 Airship Tech Serv Ltd Airship bow thruster apparatus

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292864A (en) * 1965-01-21 1966-12-20 Gen Electric Thrust reverser and deflector
FR1492730A (fr) * 1966-09-16 1967-08-18 Zd Krasnoe Sormovo Im A A Zhda Bateau sur coussin d'air
US3342278A (en) * 1965-08-02 1967-09-19 Cocksedge George Thomas Channel pressure control means for air cushion supported craft
US3369773A (en) * 1965-08-12 1968-02-20 Gen Electric Swept vane louver system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3292864A (en) * 1965-01-21 1966-12-20 Gen Electric Thrust reverser and deflector
US3342278A (en) * 1965-08-02 1967-09-19 Cocksedge George Thomas Channel pressure control means for air cushion supported craft
US3369773A (en) * 1965-08-12 1968-02-20 Gen Electric Swept vane louver system
FR1492730A (fr) * 1966-09-16 1967-08-18 Zd Krasnoe Sormovo Im A A Zhda Bateau sur coussin d'air

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4397367A (en) * 1981-05-20 1983-08-09 Ivanov Sergei K Lift and propulsion unit of air-cushion transport vehicle
US5005660A (en) * 1988-10-14 1991-04-09 Kawasaki Jukogyo Kabushiki Kaisha Propulsion air stream deflecting apparatus for air cushion vehicle
US20080149780A1 (en) * 2006-12-22 2008-06-26 Pendzich Jerome S Vertical lift vehicle
US7481290B2 (en) * 2006-12-22 2009-01-27 Pendzich Jerome S Vertical lift vehicle
US20090140103A1 (en) * 2006-12-22 2009-06-04 Jerome Pendzich Vehicle with vertical lift
US7717209B2 (en) 2006-12-22 2010-05-18 Pendzich Jerome S Vehicle with vertical lift
US8443931B2 (en) 2011-04-06 2013-05-21 Lockheed Martin Corporation Noise reduction of supersonic jet engines
CN115071929A (zh) * 2021-03-15 2022-09-20 中国科学院沈阳自动化研究所 一种采用流动控制的操纵舵板
CN115071929B (zh) * 2021-03-15 2024-05-14 中国科学院沈阳自动化研究所 一种采用流动控制的操纵舵板

Also Published As

Publication number Publication date
FR2139191A1 (enrdf_load_stackoverflow) 1973-01-05
GB1344567A (en) 1974-01-23
FR2139191B1 (enrdf_load_stackoverflow) 1973-07-13
RO55455A2 (enrdf_load_stackoverflow) 1973-08-20

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