DE89075C - - Google Patents
Info
- Publication number
- DE89075C DE89075C DENDAT89075D DE89075DA DE89075C DE 89075 C DE89075 C DE 89075C DE NDAT89075 D DENDAT89075 D DE NDAT89075D DE 89075D A DE89075D A DE 89075DA DE 89075 C DE89075 C DE 89075C
- Authority
- DE
- Germany
- Prior art keywords
- propeller
- water
- blades
- housing
- screw
- 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
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 241000272168 Laridae Species 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H11/00—Marine propulsion by water jets
- B63H11/02—Marine propulsion by water jets the propulsive medium being ambient water
- B63H11/04—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps
- B63H11/08—Marine propulsion by water jets the propulsive medium being ambient water by means of pumps of rotary type
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H1/00—Propulsive elements directly acting on water
- B63H1/02—Propulsive elements directly acting on water of rotary type
- B63H1/12—Propulsive elements directly acting on water of rotary type with rotation axis substantially in propulsive direction
- B63H1/14—Propellers
- B63H1/16—Propellers having a shrouding ring attached to blades
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Sliding-Contact Bearings (AREA)
Description
KAISERLICHESIMPERIAL
PATENTAMT.PATENT OFFICE.
Vorliegende Erfindung betrifft Verbesserungen an der unter Nr. 86469 patentirten Propeller-Anordnung und wird auf der beiliegenden Zeichnung durch Fig. 1 im Längsschnitt und durch Fig. 2 im Querschnitt nach Linie A-B der Fig. 1 zur Anschauung gebracht.The present invention relates to improvements to the propeller arrangement patented under No. 86469 and is illustrated in the accompanying drawing by FIG. 1 in longitudinal section and by FIG. 2 in cross section along line AB of FIG.
Das rohrartige Gehäuse C, welches dem Propeller das Wasser vom Bug her zuführt, soll nach der vorliegenden Erfindung mit seinem Ausflufs nicht mehr aus dem Heck herausragen, sondern mit dem Heck glatt abschneiden. Das Gehäuse C trägt am Heckende auf drei Stutzen s ein Lager D, welches der in ihm untergebrachten Schraubenwelle G eine vibrationsfreie Führung sichert. Der Propeller E ist mit dem ihn umgebenden Rohrstutzen Funwandelbar verbunden, schliefst direct an das Gehäuse C an und liegt mit der Welle G in einer Achse, so dafs Propeller E und sein Rohrmantel F gemeinschaftlich rotiren.The tubular housing C, which feeds the water to the propeller from the bow, should, according to the present invention, no longer protrude with its outflow from the stern, but should cut off smoothly with the stern. The housing C carries a bearing D on three nozzles s at the rear end, which ensures a vibration-free guidance for the screw shaft G housed in it. The propeller E is connected to the surrounding pipe socket in a non-changeable manner, is directly connected to the housing C and lies with the shaft G in one axis, so that the propeller E and its pipe casing F rotate together.
Diese Anordnung bietet gegenüber der in dem Patent Nr. 86469 gekennzeichneten die folgenden Vortheile:This arrangement provides over that identified in Patent No. 86469 the following advantages:
Die Schraubenflügel werden bis zur äufsersten Peripherie ausgenutzt, so dafs der schädliche Raum, welcher zwischen dem äufseren Kreise der Flügel und dem inneren Kreise des Mantels erforderlich ist, ganz fortfällt, also der Durchmesser des Propellers vergröfsert und jede centrifugale Wasserverschleuderung nebst damit verbundener Reibung vermieden ist. Ferner brauchen die Flügel der Schraube weder an der Nabe noch im allgemeinen so kräftig construirt zu sein, wie bisher,, ohne dafs ein ,Bruch der Flügel zu befürchten ist, weil die Widerstandsmomente, die an der Flügelperipherie am stärksten sind, von der Befestigung am Rohrstutzen F aufgefangen werden; auch die Wasserverdrängung durch die Flügel wird bedeutend geringer; hierzu kommt noch, dafs der Wasserstrom innerhalb des Mantels F ohne jede Drehung bleibt und auf die ganze Länge des Mantels F in gerader Linie nur mit gleitender Reibung hinausgedrückt wird. Aufserdem kann für Schiffe mit normalen Geschwindigkeiten die Zwei-, Drei- und Viertheiligkeit des' Wasserstromes entsprechend der Anzahl der Schraubenflügel vermieden werden, indem man der Schraube einen ungetheilten Gewindegang giebt.The propeller blades are used up to the outermost periphery, so that the harmful space which is required between the outer circle of the blades and the inner circle of the mantle is completely eliminated, i.e. the diameter of the propeller is increased and any centrifugal flinging of water and associated friction is avoided . Furthermore, the wings of the screw do not need to be constructed as strong as before, neither at the hub nor in general, without fear of breaking the wing, because the moments of resistance, which are strongest at the wing periphery, come from the attachment to the Pipe socket F are collected; The displacement of water by the wings is also significantly less; In addition, the stream of water within the jacket F remains without any rotation and is pushed out over the entire length of the jacket F in a straight line only with sliding friction. Furthermore, for ships with normal speeds, the two-, three-, and four-divisional nature of the water flow, corresponding to the number of propeller blades, can be avoided by giving the propeller an undivided thread.
Claims (1)
Publications (1)
Publication Number | Publication Date |
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DE89075C true DE89075C (en) |
Family
ID=360921
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
DENDAT89075D Active DE89075C (en) |
Country Status (1)
Country | Link |
---|---|
DE (1) | DE89075C (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4015556A (en) * | 1973-06-04 | 1977-04-05 | Bordiga Alejandro Lorenzo Carl | Device for propelling boats |
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0
- DE DENDAT89075D patent/DE89075C/de active Active
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4015556A (en) * | 1973-06-04 | 1977-04-05 | Bordiga Alejandro Lorenzo Carl | Device for propelling boats |
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