US1770575A - Aeroplane with supporting surface subdivided by gaps - Google Patents

Aeroplane with supporting surface subdivided by gaps Download PDF

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Publication number
US1770575A
US1770575A US33742229A US1770575A US 1770575 A US1770575 A US 1770575A US 33742229 A US33742229 A US 33742229A US 1770575 A US1770575 A US 1770575A
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Prior art keywords
gaps
supporting
surface
rear
gap
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Ksoll Joseph
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Ksoll Joseph
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C21/00Influencing air-flow over aircraft surfaces by affecting boundary-layer flow
    • B64C21/02Influencing air-flow over aircraft surfaces by affecting boundary-layer flow by use of slot, ducts, porous areas, or the like
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C2230/00Boundary layer controls
    • B64C2230/20Boundary layer controls by passively inducing fluid flow, e.g. by means of a pressure difference between both ends of a slot or duct
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T50/00Aeronautics or air transport
    • Y02T50/10Drag reduction
    • Y02T50/16Drag reduction by influencing airflow
    • Y02T50/166Drag reduction by influencing airflow by influencing the boundary layer

Description

July 15, 1930. J. KSQLL 1,770,575

AEROPLANE WITH SUPPORTING SURFACE SUBDIVIDED BY GAPS Filed Feb. 4, 1929 atented July 15, 1930 1,770,575

STATES PATENT OFFIE JOSEPH KSOLL, F. BRESLAU, GERMANY AEROPLANE WITH SUPPORTING SURFACE SUBDIVIDED ZBY GAPS Application filed February 4, 1929, Serial No. 337,422, and in Germany December 3, 1927.

This invention relates to an aeroplane with the rear, both gaps converging above the supporting surfaces subdivided by gaps. In head of the rear flap to a further narrowing aircraft of this type the raising force (ca) is common outlet gap. small and the resistance (0w) of the support- In testimony whereof I affix my signature.

ing surface is great, when the gaps are pro- JOSEPH KSOLL.

duced with small adjusting angles. Experiments have shown that the raising force and resistance are more similar to those of a normal supporting surface, when some of the gaps start, in a manner known per se,

from the rear portion and the others from the front portion of the lower side of the supporting surface and these gaps endall at the rear in a common gap.

i In order to reduce the possibility of the formation of air eddies above the supporting surface it is advisable, to make the common gap in which all the other gaps join extend only to above the front portion of the rearmost portion of the supporting surface, the so-called flap. 7

By tapering towards the open rear end the common gap into which the other gaps merge the raising force is still further increased.

An embodiment of the invention is illustrated, by way of example, in the accompanying drawing in which the only figure shows diagrammatically a form of construction of the supporting elements for an aeroplane according to the invention.

a, b, c designate the several portions of the supporting surface separated from each other by gaps d, e. The portion c,the so-called flap, is adapted to be oscillated around an axle f into the position indicated in dash lines.

The two gaps d, e end each in a common gap g which extends only to above the front portion of flap 0 in rearward direction and tapers from the point h, at which the gaps d, 6 merge 90 1nt0 1t, towards the rear and open end a.

In supporting faces for aeroplanes the combination with a narrowing nozzle-like gap in 5 the airfoil, rising from the front part of the 95 under side of the airfoil to the upper side of said airfoil at an incline towards the rear, of a narrowing nozzle-like gap between the rearward end of the airfoil and the forward end of the rear flap, which gap rises to the upper side of said flap at an incline towards

US1770575A 1927-12-03 1929-02-04 Aeroplane with supporting surface subdivided by gaps Expired - Lifetime US1770575A (en)

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Application Number Priority Date Filing Date Title
DE1770575X 1927-12-03

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US1770575A true US1770575A (en) 1930-07-15

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Cited By (31)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456906A (en) * 1938-12-19 1948-12-21 Bechereau Louis Supporting surfaces for aircraft
WO1998017529A1 (en) * 1996-10-22 1998-04-30 The Boeing Company Airplane with unswept slotted cruise wing airfoil
US5788190A (en) * 1996-10-22 1998-08-04 The Boeing Company Slotted cruise trailing edge flap
US6796534B2 (en) 2002-09-10 2004-09-28 The Boeing Company Method and apparatus for controlling airflow with a leading edge device having a flexible flow surface
US20040245386A1 (en) * 2003-06-03 2004-12-09 Huynh Neal V. Systems, apparatuses, and methods for moving aircraft control surfaces
US20050011994A1 (en) * 2003-06-03 2005-01-20 Seiya Sakurai Multi-function trailing edge devices and associated methods
US6905092B2 (en) 2002-11-20 2005-06-14 Airfoils, Incorporated Laminar-flow airfoil
US20050274846A1 (en) * 2004-06-15 2005-12-15 Roy Dun Methods and apparatuses for controlling airflow proximate to engine/airfoil systems
US20060261217A1 (en) * 2005-05-20 2006-11-23 Nicolaas Voogt Aerospace vehicle fairing systems and associated methods
US7264206B2 (en) 2004-09-30 2007-09-04 The Boeing Company Leading edge flap apparatuses and associated methods
US7270305B2 (en) 2004-06-15 2007-09-18 The Boeing Company Aircraft leading edge apparatuses and corresponding methods
US7309043B2 (en) 2005-04-27 2007-12-18 The Boeing Company Actuation device positioning systems and associated methods, including aircraft spoiler droop systems
US7322547B2 (en) 2005-01-31 2008-01-29 The Boeing Company Aerospace vehicle leading edge slat devices and corresponding methods
US7338018B2 (en) 2005-02-04 2008-03-04 The Boeing Company Systems and methods for controlling aircraft flaps and spoilers
US7357358B2 (en) 2004-02-27 2008-04-15 The Boeing Company Aircraft leading edge device systems and corresponding sizing methods
US7367530B2 (en) 2005-06-21 2008-05-06 The Boeing Company Aerospace vehicle yaw generating systems and associated methods
US7424350B2 (en) 2004-02-02 2008-09-09 The Boeing Company Vehicle control systems and corresponding sizing methods
US7475854B2 (en) 2005-11-21 2009-01-13 The Boeing Company Aircraft trailing edge devices, including devices with non-parallel motion paths, and associated methods
US7494094B2 (en) 2004-09-08 2009-02-24 The Boeing Company Aircraft wing systems for providing differential motion to deployable lift devices
US7500641B2 (en) 2005-08-10 2009-03-10 The Boeing Company Aerospace vehicle flow body systems and associated methods
US7506842B2 (en) 2003-11-24 2009-03-24 The Boeing Company Aircraft control surface drive system and associated methods
US7578484B2 (en) 2006-06-14 2009-08-25 The Boeing Company Link mechanisms for gapped rigid krueger flaps, and associated systems and methods
US7611099B2 (en) 2005-09-07 2009-11-03 The Boeing Company Seal assemblies for use with drooped spoilers and other control surfaces on aircraft
US7708231B2 (en) 2005-11-21 2010-05-04 The Boeing Company Aircraft trailing edge devices, including devices having forwardly positioned hinge lines, and associated methods
US7721999B2 (en) 2005-05-20 2010-05-25 The Boeing Company Aerospace vehicle fairing systems and associated methods
US20100140414A1 (en) * 2008-12-09 2010-06-10 The Boeing Company Link Mechanisms, Including Stephenson II Link Mechanisms for Multi-Position Flaps and Associated Systems and Methods
US7766282B2 (en) 2007-12-11 2010-08-03 The Boeing Company Trailing edge device catchers and associated systems and methods
US20100242467A1 (en) * 2009-03-25 2010-09-30 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Shielded stamped stator blade
US20110017876A1 (en) * 2009-07-21 2011-01-27 The Boeing Company Shape-Changing Control Surface
US7954769B2 (en) 2007-12-10 2011-06-07 The Boeing Company Deployable aerodynamic devices with reduced actuator loads, and related systems and methods
US20110135477A1 (en) * 2009-12-30 2011-06-09 Omer Mohammed Method and Apparatus for Increasing Lift on Wind Turbine Blade

Cited By (50)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2456906A (en) * 1938-12-19 1948-12-21 Bechereau Louis Supporting surfaces for aircraft
WO1998017529A1 (en) * 1996-10-22 1998-04-30 The Boeing Company Airplane with unswept slotted cruise wing airfoil
US5788190A (en) * 1996-10-22 1998-08-04 The Boeing Company Slotted cruise trailing edge flap
US6293497B1 (en) * 1996-10-22 2001-09-25 The Boeing Company Airplane with unswept slotted cruise wing airfoil
USRE44313E1 (en) 1996-10-22 2013-06-25 The Boeing Company Airplane with unswept slotted cruise wing airfoil
US6796534B2 (en) 2002-09-10 2004-09-28 The Boeing Company Method and apparatus for controlling airflow with a leading edge device having a flexible flow surface
US6905092B2 (en) 2002-11-20 2005-06-14 Airfoils, Incorporated Laminar-flow airfoil
US20040245386A1 (en) * 2003-06-03 2004-12-09 Huynh Neal V. Systems, apparatuses, and methods for moving aircraft control surfaces
US7243881B2 (en) 2003-06-03 2007-07-17 The Boeing Company Multi-function trailing edge devices and associated methods
US20050011994A1 (en) * 2003-06-03 2005-01-20 Seiya Sakurai Multi-function trailing edge devices and associated methods
US7059563B2 (en) 2003-06-03 2006-06-13 The Boeing Company Systems, apparatuses, and methods for moving aircraft control surfaces
US7506842B2 (en) 2003-11-24 2009-03-24 The Boeing Company Aircraft control surface drive system and associated methods
US20090308983A1 (en) * 2003-11-24 2009-12-17 The Boeing Company Aircraft control surface drive system and associated methods
US7913955B2 (en) * 2003-11-24 2011-03-29 The Boeing Company Aircraft control surface drive system and associated methods
US7424350B2 (en) 2004-02-02 2008-09-09 The Boeing Company Vehicle control systems and corresponding sizing methods
US7357358B2 (en) 2004-02-27 2008-04-15 The Boeing Company Aircraft leading edge device systems and corresponding sizing methods
US6978971B1 (en) 2004-06-15 2005-12-27 The Boeing Company Methods and apparatuses for controlling airflow proximate to engine/airfoil systems
US20050274846A1 (en) * 2004-06-15 2005-12-15 Roy Dun Methods and apparatuses for controlling airflow proximate to engine/airfoil systems
US7270305B2 (en) 2004-06-15 2007-09-18 The Boeing Company Aircraft leading edge apparatuses and corresponding methods
US7726610B2 (en) 2004-09-08 2010-06-01 The Boeing Company Systems and methods for providing differential motion to wing high lift device
US7494094B2 (en) 2004-09-08 2009-02-24 The Boeing Company Aircraft wing systems for providing differential motion to deployable lift devices
US7828250B2 (en) 2004-09-30 2010-11-09 The Boeing Company Leading edge flap apparatuses and associated methods
US7264206B2 (en) 2004-09-30 2007-09-04 The Boeing Company Leading edge flap apparatuses and associated methods
US7322547B2 (en) 2005-01-31 2008-01-29 The Boeing Company Aerospace vehicle leading edge slat devices and corresponding methods
US7338018B2 (en) 2005-02-04 2008-03-04 The Boeing Company Systems and methods for controlling aircraft flaps and spoilers
US7891611B2 (en) 2005-02-04 2011-02-22 The Boeing Company Systems and methods for controlling aircraft flaps and spoilers
US7309043B2 (en) 2005-04-27 2007-12-18 The Boeing Company Actuation device positioning systems and associated methods, including aircraft spoiler droop systems
US20060261217A1 (en) * 2005-05-20 2006-11-23 Nicolaas Voogt Aerospace vehicle fairing systems and associated methods
US7300021B2 (en) 2005-05-20 2007-11-27 The Boeing Company Aerospace vehicle fairing systems and associated methods
US7721999B2 (en) 2005-05-20 2010-05-25 The Boeing Company Aerospace vehicle fairing systems and associated methods
US7367530B2 (en) 2005-06-21 2008-05-06 The Boeing Company Aerospace vehicle yaw generating systems and associated methods
US7500641B2 (en) 2005-08-10 2009-03-10 The Boeing Company Aerospace vehicle flow body systems and associated methods
US7611099B2 (en) 2005-09-07 2009-11-03 The Boeing Company Seal assemblies for use with drooped spoilers and other control surfaces on aircraft
US7475854B2 (en) 2005-11-21 2009-01-13 The Boeing Company Aircraft trailing edge devices, including devices with non-parallel motion paths, and associated methods
US8038103B2 (en) 2005-11-21 2011-10-18 The Boeing Company Aircraft trailing edge devices, including devices having forwardly positioned hinge lines, and associated methods
US7708231B2 (en) 2005-11-21 2010-05-04 The Boeing Company Aircraft trailing edge devices, including devices having forwardly positioned hinge lines, and associated methods
US8567726B2 (en) 2005-11-21 2013-10-29 The Boeing Company Aircraft trailing edge devices, including devices having forwardly positioned hinge lines, and associated methods
US7744040B2 (en) 2005-11-21 2010-06-29 The Boeing Company Aircraft trailing edge devices, including devices with non-parallel motion paths, and associated methods
US7578484B2 (en) 2006-06-14 2009-08-25 The Boeing Company Link mechanisms for gapped rigid krueger flaps, and associated systems and methods
US7954769B2 (en) 2007-12-10 2011-06-07 The Boeing Company Deployable aerodynamic devices with reduced actuator loads, and related systems and methods
US7766282B2 (en) 2007-12-11 2010-08-03 The Boeing Company Trailing edge device catchers and associated systems and methods
US8226048B2 (en) 2008-12-09 2012-07-24 The Boeing Company Link mechanisms, including Stephenson II link mechanisms for multi-position flaps and associated systems and methods
US20100140414A1 (en) * 2008-12-09 2010-06-10 The Boeing Company Link Mechanisms, Including Stephenson II Link Mechanisms for Multi-Position Flaps and Associated Systems and Methods
US20100242467A1 (en) * 2009-03-25 2010-09-30 Luk Lamellen Und Kupplungsbau Beteiligungs Kg Shielded stamped stator blade
US8894375B2 (en) * 2009-03-25 2014-11-25 Schaeffler Technologies Gmbh & Co. Kg Shielded stamped stator blade
US20110017876A1 (en) * 2009-07-21 2011-01-27 The Boeing Company Shape-Changing Control Surface
US8382045B2 (en) 2009-07-21 2013-02-26 The Boeing Company Shape-changing control surface
US8303250B2 (en) * 2009-12-30 2012-11-06 General Electric Company Method and apparatus for increasing lift on wind turbine blade
US20110135477A1 (en) * 2009-12-30 2011-06-09 Omer Mohammed Method and Apparatus for Increasing Lift on Wind Turbine Blade
CN102116252A (en) * 2009-12-30 2011-07-06 通用电气公司 Method and apparatus for increasing lift on wind turbine blade

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