CH128886A - Propulsion device on water, land and air vehicles. - Google Patents
Propulsion device on water, land and air vehicles.Info
- Publication number
- CH128886A CH128886A CH128886TA CH128886A CH 128886 A CH128886 A CH 128886A CH 128886T A CH128886T A CH 128886TA CH 128886 A CH128886 A CH 128886A
- Authority
- CH
- Switzerland
- Prior art keywords
- screws
- drive device
- water
- land
- propulsion device
- Prior art date
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B63—SHIPS OR OTHER WATERBORNE VESSELS; RELATED EQUIPMENT
- B63H—MARINE PROPULSION OR STEERING
- B63H5/00—Arrangements on vessels of propulsion elements directly acting on water
- B63H5/07—Arrangements on vessels of propulsion elements directly acting on water of propellers
- B63H5/08—Arrangements on vessels of propulsion elements directly acting on water of propellers of more than one propeller
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- Ocean & Marine Engineering (AREA)
- Gear Transmission (AREA)
- Transmission Devices (AREA)
Description
Antriebsvorrichtung an Wasser-, Land- und Luftfahrzeugen. Die Erfindung hat die besondere Anord nung der Antriebsschrauben an Wasser-, Land- und Luftfahrzeugen zum Gegenstande. Damit wird eine bedeutende Verminderung des Wasser-, bezw. Luftwiderstandes des Fahrzeuges erreicht, woraus eine bessere Ausnützung der Motorkraft resultiert. Fer ner wird durch die Erfindung die Möglich keit geboten, bedeutend grössere Fährgeschwin- digkeiten der Fahrzeuge als die bisher ge wohnten zu erreichen.
Die schematische Zeichnung zeigt den Unterwasserteil eines Schiffes, das mit einer Antriebsvorrichtung gemäss der Erfindung ausgerüstet ist. Fig. 1 ist der Aufriss, und Fig. 2 der Grundriss des Schiffes. Die Be sonderheit besteht in der seitlichen Anord nung der Schrauben a und b, welche sich (eventuell je zwei oder drei solcher senkrecht übereinander) an der Stelle des grössten Rumpfquerschnittes befinden. Der Schiffs rumpf hat möglichst gute Stromlinienform. Die Achsen der beiden Schrauben a und b liegen nicht in der Längsrichtung des Schiffes einander parallel, sondern schneiden sich im Punkte c, das heisst, sie liegen im spitzen Winkel zu derselben. Der Wasser abfluss von den Schrauben ist dadurch gegen die hintern Schiffswände gerichtet, um den sonst hier auftretenden Unterdruck sowie die Wirbelbildung am Heck zu vermeiden.
Die Schrauben saugen das Wasser vom Bug, wo es sich am stärksten staut, weg und ver mindern auf diese Weise den Staudruck bedeutend. Die daraus entstehende Kraft ersparnis ist um so grösser, je höher die Ge schwindigkeit des Schiffes ist, weil eben bei grossen Geschwindigkeiten der Staudruck und die Saugwirkung am stärksten hervortreten und den grössten Teil der aufgewendeten Motorkraft unproduktiv verbrauchen. Da durch, dass die Unterdruckzonen der Schiff schrauben nie das Heck erreichen und da durch kraftverzehrend wirken können, die Schrauben im Gegenteil im Staugebiet des Schiffskörpers liegen, bleibt der Wirkungs grad derselben annähernd konstant von der kleinsten bis zur maximalen Drehzahl der selben. Die Drehrichtung der beiden Pro peller ist einander entgegengesetzt im Sinne der eingezeichneten Pfeile.
Der Antrieb der Schrauben erfolgt vom Punkte c aus, wobei beide Schrauben miteinander zwangsläufig durch Zahnräder verbunden sind. Zum Schutze vor Beschädigung sind die Schrau ben a und b mit je einer halbkreisförmigen Verschalung g und einem Stab la versehen, diese sind miteinander und mit dem Rumpf verbunden. Jeder Stab h trägt gleichzeitig ein Lager für die zugehörige Schraubenwelle.
Propulsion device on water, land and air vehicles. The invention has the special Anord voltage of the drive screws on watercraft, land and air vehicles as an object. This is a significant reduction in the water, respectively. Reached air resistance of the vehicle, which results in better utilization of the engine power. Furthermore, the invention offers the possibility of achieving significantly higher ferry speeds for the vehicles than those previously used.
The schematic drawing shows the underwater part of a ship which is equipped with a propulsion device according to the invention. Fig. 1 is the elevation and Fig. 2 is the plan of the ship. The specialty is the lateral arrangement of screws a and b, which are (possibly two or three vertically one above the other) at the point of the largest cross-section of the fuselage. The hull is as streamlined as possible. The axes of the two screws a and b are not parallel to each other in the longitudinal direction of the ship, but intersect at point c, that is, they are at an acute angle to the same. The water outflow from the screws is directed towards the rear of the ship to avoid the negative pressure that otherwise occurs here and the formation of eddies at the stern.
The screws suck the water away from the bow, where it accumulates the most, and in this way significantly reduce the back pressure. The resulting power saving is greater, the higher the speed of the ship, because the dynamic pressure and the suction effect are most pronounced at high speeds and consume most of the engine power unproductively. Since the underpressure zones of the ship's propellers never reach the stern and can have a power-consuming effect, on the contrary, the propellers are located in the stowage area of the hull, the efficiency of the same remains almost constant from the lowest to the maximum speed of the same. The direction of rotation of the two propellers is opposite to one another in the sense of the arrows.
The screws are driven from point c, both screws being connected to one another by gears. To protect against damage, the screws ben a and b are each provided with a semicircular casing g and a rod la, these are connected to each other and to the fuselage. Each rod h also carries a bearing for the associated screw shaft.
Claims (1)
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH128886T CH128886A (en) | 1928-06-21 | 1928-06-21 | Propulsion device on water, land and air vehicles. |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CH128886T CH128886A (en) | 1928-06-21 | 1928-06-21 | Propulsion device on water, land and air vehicles. |
Publications (1)
Publication Number | Publication Date |
---|---|
CH128886A true CH128886A (en) | 1928-11-16 |
Family
ID=4387323
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
CH128886T CH128886A (en) | 1928-06-21 | 1928-06-21 | Propulsion device on water, land and air vehicles. |
Country Status (1)
Country | Link |
---|---|
CH (1) | CH128886A (en) |
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1203635B (en) * | 1962-01-12 | 1965-10-21 | Rudolf Arnold Erren | Reaction drive for watercraft |
DE1217237B (en) * | 1960-10-27 | 1966-05-18 | Dr Richard Breinlich | Propulsion of watercraft |
WO1982000811A1 (en) * | 1980-09-05 | 1982-03-18 | Charbonnier J | Motor boat with two hulls |
CN103507933A (en) * | 2012-06-29 | 2014-01-15 | 北京科实医学图像技术研究所 | Improvement project of ship steering mechanism |
DE102018203041B4 (en) * | 2018-03-01 | 2021-02-18 | Zf Friedrichshafen Ag | Bearing block for a ship drive with two propellers rotating in opposite directions and a ship drive |
-
1928
- 1928-06-21 CH CH128886T patent/CH128886A/en unknown
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE1217237B (en) * | 1960-10-27 | 1966-05-18 | Dr Richard Breinlich | Propulsion of watercraft |
DE1203635B (en) * | 1962-01-12 | 1965-10-21 | Rudolf Arnold Erren | Reaction drive for watercraft |
WO1982000811A1 (en) * | 1980-09-05 | 1982-03-18 | Charbonnier J | Motor boat with two hulls |
CN103507933A (en) * | 2012-06-29 | 2014-01-15 | 北京科实医学图像技术研究所 | Improvement project of ship steering mechanism |
DE102018203041B4 (en) * | 2018-03-01 | 2021-02-18 | Zf Friedrichshafen Ag | Bearing block for a ship drive with two propellers rotating in opposite directions and a ship drive |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
DE19647102A1 (en) | Flow body | |
CH128886A (en) | Propulsion device on water, land and air vehicles. | |
DE3633689C1 (en) | Flow control surface | |
DE650590C (en) | Device to distribute the thrust more evenly over the whole propeller circle | |
DE740224C (en) | Hydrofoil-like, thin, fixed or rotatable screw casing for watercraft | |
DE3936280A1 (en) | Aquaplane for stern of marine vessel - has adjustable mountings to generate thrust from stern wave of vessel | |
DE4443750A1 (en) | Propeller for ship or aircraft | |
DE2336154A1 (en) | Trim flap for fast motor boat - mounted away from hull line behind water intake for max. effect | |
EP3444178A1 (en) | System for changing the eigenfrequency of a boat | |
DE613208C (en) | Stern shape for multi-screw ships | |
DE806947C (en) | Propulsion system for a river boat | |
DE573093C (en) | Ship propulsion | |
DE913866C (en) | Ship rudder | |
DE3226962A1 (en) | Hull for higher speeds | |
DE1506203C3 (en) | Watercraft with additional hydrodynamic buoyancy | |
DE2135408B2 (en) | DEVICE FOR IMPROVING THE SLIDING ABILITY OF WATER VEHICLES | |
DE857750C (en) | Ship with side attachments serving in particular to accommodate the drive elements | |
DE102014002537A1 (en) | Hydrofoil hull substructure for water-starting ground effect / Stauflügel vehicles | |
DE680696C (en) | Tail unit in connection with the screw drive of watercraft and aircraft | |
DE458163C (en) | Outboard drive for slow moving watercraft, especially barges | |
DE675242C (en) | Aftship training | |
AT160588B (en) | Hydrofoil-shaped body at the stern of a ship. | |
DE1709580U (en) | CONTROL DEVICE FOR WATER VEHICLES. | |
DE202007012481U1 (en) | Maritime high-speed vehicle | |
DE19956760C1 (en) | Boat for skimming the water surface using a hydrodynamic drive has a hull with structured lateral steps and ventilation for reduced friction with the water for high speeds with stability |