DE175477C - - Google Patents
Info
- Publication number
- DE175477C DE175477C DENDAT175477D DE175477DA DE175477C DE 175477 C DE175477 C DE 175477C DE NDAT175477 D DENDAT175477 D DE NDAT175477D DE 175477D A DE175477D A DE 175477DA DE 175477 C DE175477 C DE 175477C
- Authority
- DE
- Germany
- Prior art keywords
- blades
- blade
- air
- fastening
- supports
- 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.)
- Active
Links
- 230000000875 corresponding Effects 0.000 claims description 2
- 239000000969 carrier Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B64—AIRCRAFT; AVIATION; COSMONAUTICS
- B64C—AEROPLANES; HELICOPTERS
- B64C11/00—Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft
- B64C11/006—Paddle wheels
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Die Erfindung bietet eine Neuerung an Schraubenpropellern nach Patent 141656 und besteht darin, daß die Schaufeln α derart auf den Trägern d befestigt sind, daß der äußere Rand jeder Schaufel annähernd über der inneren Grundlinie der folgenden Schaufel liegt.The invention offers an innovation in screw propellers according to patent 141656 and consists in that the blades α are fixed on the supports d in such a way that the outer edge of each blade is approximately above the inner base line of the following blade.
Die Vorteile, die die Befestigungsweise der Schaufeln α auf besonderen Trägern d bietet, kommen nämlich um so mehr zur Geltung, je mehr die Schaufeln α von der radialen Richtung abweichend nach hinten geneigt werden. Die Abweichung hat den Zweck, die zwischen den Schaufeln lediglich durch Reibung von Luft an Luft mitgerissenen Luftteilchen nicht wie bei einem Quirl auszuschleudern, sondern ' sie in ihrer radialen Bahn nach hinten abzulenken, so daß eine der Ablenkung der Luftmassen nach hinten entsprechende Kraft die Schaufeln vorwärts drückt. Die Erfindung ist in den Fig. 1 bis 3 dargestellt, von denen Fig. ι und 2 eine Ausfühfungsform in Seitenansicht und Draufsicht, Fig. 3 eine zweite Ausführungsform zeigen.The advantages offered by the method of fastening the blades α on special carriers d come into effect the more the blades α are inclined towards the rear in a manner deviating from the radial direction. The purpose of the deviation is not to throw out the air particles that are entrained between the blades by friction between air and air, as in a whisk, but to deflect them backwards in their radial path, so that a force corresponding to the deflection of the air masses backwards the blades pushes forward. The invention is shown in FIGS. 1 to 3, of which FIGS. 1 and 2 show an embodiment in side view and top view, and FIG. 3 shows a second embodiment.
Um den bei der Schaufelbefestigung gemäß der Erfindung auftretenden großen Fliehkräften zu begegnen, welche die Schaufeln zu biegen bezw. radial zu stellen suchen, müssen die Träger d durch die Schaufeln a hindurchgehen (Fig. 3) oder durch Stäbe ^1 und Zugstangen Zz1 (Fig. 1) fach werkartig mit den Schaufeln verbunden werden. Die Träger d sind in bekannter Weise, z. B. durch Stutzen g und Zugstangen h, an der Welle/ befestigt.In order to counteract the large centrifugal forces occurring in the blade attachment according to the invention, which respectively bend the blades. To seek to place radially, the carrier d must go through the blades a (Fig. 3) or be connected to the blades by means of rods ^ 1 and tie rods Zz 1 (Fig. 1). The carriers d are in a known manner, for. B. by connecting piece g and tie rods h, attached to the shaft /.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE175477C true DE175477C (en) |
Family
ID=440119
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT175477D Active DE175477C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE175477C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4206066A1 (en) * | 1992-02-27 | 1993-09-02 | Fritz Karl Hausser | Propeller or rotor blades - are designed to reduce eddies and air or water resistance and have toothed leading and trailing edges |
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0
- DE DENDAT175477D patent/DE175477C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE4206066A1 (en) * | 1992-02-27 | 1993-09-02 | Fritz Karl Hausser | Propeller or rotor blades - are designed to reduce eddies and air or water resistance and have toothed leading and trailing edges |
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