DE888959C - Jack screw - Google Patents

Jack screw

Info

Publication number
DE888959C
DE888959C DEL12158A DEL0012158A DE888959C DE 888959 C DE888959 C DE 888959C DE L12158 A DEL12158 A DE L12158A DE L0012158 A DEL0012158 A DE L0012158A DE 888959 C DE888959 C DE 888959C
Authority
DE
Germany
Prior art keywords
screw
propulsion
pivoting
propeller
plane
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
DEL12158A
Other languages
German (de)
Inventor
Rolf Lux
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.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to DEL12158A priority Critical patent/DE888959C/en
Application granted granted Critical
Publication of DE888959C publication Critical patent/DE888959C/en
Expired legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/32Rotors
    • B64C27/46Blades
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B64AIRCRAFT; AVIATION; COSMONAUTICS
    • B64CAEROPLANES; HELICOPTERS
    • B64C27/00Rotorcraft; Rotors peculiar thereto
    • B64C27/22Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft
    • B64C27/28Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft with forward-propulsion propellers pivotable to act as lifting rotors

Description

Bei Hubschraubern erfolgt die- Erzeugung- eines Vortriebes bekanntlich durch Vorwärtsneigen der Hubschraube, durch zyklische B:lattwinkelsteuerung oder durch eine besondere Vortriebs,schraube. Diese Vortriebsarten sind umständlich in ihrer Einrichtung und kostspielig im Betrieb. .As is known, propulsion is generated in helicopters by tilting the lifting screw forward, by cyclic B: lath angle control or by a special jacking screw. These types of tunneling are cumbersome in their establishment and costly to operate. .

Wie aus der Zeichnung ersichtlich, werden zur Beseitigung dieser Nachteile erfindungsgemäß an den Flügeln r der Hubschraube besondere Vortriebsflächen 2 .angebracht, die senkrecht zur Hubschraubenebene stehen und um zur Hubschraubenebene senkrecht stehende Achsen schwenkbar sind. Diese Vortriebsflächen werden von ,der - Hubschraubennabe 3 so gesteuert; daß sie beim Rücklauf des betreffenden Schraubenflügels eine radiale und beim Vorlauf eine tangenti,ale, quer zur Längsachse q. des Schraubenflügels gerichtete Lage einnehmen. Es ist zweckmäßig, die Vörtriebsflächen während ihres Rücklaufes nur innerhalb eines beschränkten Sektors S, der etwa 3o° nach denn vorderen Umkehrpunkt beginnt und etwa 3;d° vor dem hinteren Umkehrpunkt endet, die radiale Lage einnehmen zu lassen. Der Luftwiderstand der Vortriebsflächen auf ihrem Umlaufweg ist in radialer Lage größer als bei tangentialer Lage, und dadurch entsteht ein Schub in - Flugrichtung F, der sich über die Luftschraubenbefestigung 3B dem Flugkörper K mitteilt. Wird nicht der volle Vortrieb benötigt, -so werden. die Vortriebsflächen nur bis zu einer mittleren-Lage ausgeschwenkt.As can be seen from the drawing, to eliminate these disadvantages, according to the invention, special propulsion surfaces 2 are attached to the wings r of the lifting screw, which are perpendicular to the lifting screw plane and can be pivoted about axes perpendicular to the lifting screw plane. These propulsion surfaces are controlled by the - helicopter hub 3; that they have a radial and a tangenti, ale, transverse to the longitudinal axis q during the return of the respective helical wing. take up position facing the screw wing. It is advisable to allow the advancing surfaces to assume the radial position during their return movement only within a restricted sector S, which begins about 30 ° after the front reversal point and ends about 3; d ° before the rear reversal point. The air resistance of the propulsion surfaces on their orbital path is greater in the radial position than in the tangential position, and this creates a thrust in the direction of flight F, which is communicated to the missile K via the propeller attachment 3B. If the full advance is not required, - so will. the jacking surfaces are only swung out to a central position.

Claims (5)

PATENTANSPRÜCHE: i. Hubschräube, dadurch gekennzeichnet, daß zur :Erzeugung eines Vortriebes an den Schraubenflügeln senkrecht zur Schraubenebene stehende Flächen (2) angebracht sind, die um senkrecht zur Schraubenebene stehende Achsen schwenkbar sind, um die Flächen beim Rücklauf der Schraubenflügel in radiale und beim -Vorlauf der Schraubenflügel in tangentiale Lage schwenken zu können. PATENT CLAIMS: i. Helicopters, characterized in that for: production a propulsion on the propeller blades perpendicular to the plane of the propeller (2) are attached, which can be pivoted about axes perpendicular to the plane of the screw are to the surfaces with the return of the screw blades in radial and with -forward to be able to pivot the screw wing into a tangential position. 2. Hubschraube nach Anspruch a, dadurch gekennzeichnet, daß die Vortriebsflächen (2) am äußeren Ende - :der Schraubenflügel angebracht sind. 2. Lift screw after Claim a, characterized in that the propulsion surfaces (2) are at the outer end -: the screw wings are attached. 3. Hubschraube nach Anspruch i und 2, dadurch gekennzeichnet, daß das Verschwenken der Vortriebsflächen pneumatisch oder hydraulisch gesteuert wird. q.. 3. Lifting screw according to claim i and 2, characterized characterized in that the pivoting of the propulsion surfaces is pneumatic or hydraulic is controlled. q .. Hubschraube nach Anspruch I und 2,dadurch gekennzeichnet, daß das Verschwenken der Vortriebsflächen elektromagnetisch gesteuert wird. Lifting screw according to Claims I and 2, characterized in that the pivoting of the propulsion surfaces is controlled electromagnetically. 5. Hubschraube nach Anspruch z bis q., dadurch gekennzeichnet, daß das Steuergestänge zum Verschwenken der Vortriebsflächen im Schraubenflügel untergebracht ist.5. Lift screw according to claims z to q., characterized in that the control linkage is for pivoting the propulsion surfaces is housed in the propeller wing.
DEL12158A 1952-04-22 1952-04-22 Jack screw Expired DE888959C (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
DEL12158A DE888959C (en) 1952-04-22 1952-04-22 Jack screw

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEL12158A DE888959C (en) 1952-04-22 1952-04-22 Jack screw

Publications (1)

Publication Number Publication Date
DE888959C true DE888959C (en) 1953-09-07

Family

ID=7259090

Family Applications (1)

Application Number Title Priority Date Filing Date
DEL12158A Expired DE888959C (en) 1952-04-22 1952-04-22 Jack screw

Country Status (1)

Country Link
DE (1) DE888959C (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1134593B (en) * 1960-11-14 1962-08-09 Boelkow Entwicklungen Kg Rotor for rotary wing aircraft
EP0018114A1 (en) * 1979-04-03 1980-10-29 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Thrust devices
WO2004067956A1 (en) * 2003-01-30 2004-08-12 Josef Moser Rotor blade for a wind power station

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1134593B (en) * 1960-11-14 1962-08-09 Boelkow Entwicklungen Kg Rotor for rotary wing aircraft
EP0018114A1 (en) * 1979-04-03 1980-10-29 The Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Thrust devices
WO2004067956A1 (en) * 2003-01-30 2004-08-12 Josef Moser Rotor blade for a wind power station
US7566203B2 (en) 2003-01-30 2009-07-28 Josef Moser Rotor blade

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