US3610197A - Motorboat - Google Patents

Motorboat Download PDF

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Publication number
US3610197A
US3610197A US842469A US3610197DA US3610197A US 3610197 A US3610197 A US 3610197A US 842469 A US842469 A US 842469A US 3610197D A US3610197D A US 3610197DA US 3610197 A US3610197 A US 3610197A
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US
United States
Prior art keywords
tube
boat
water
hull
holes
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 - Lifetime
Application number
US842469A
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English (en)
Inventor
Gregor Sporri
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Individual
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Individual
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Publication date
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Publication of US3610197A publication Critical patent/US3610197A/en
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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
    • B63H5/14—Arrangements on vessels of propulsion elements directly acting on water of propellers characterised by being mounted in non-rotating ducts or rings, e.g. adjustable for steering purpose

Definitions

  • a stabilizing tube fixed to the hull of a boat below the waterline thereof with an inlet and an outlet respectively at the bow and the stern of the boat, has its midsection provided with water-expulsion holes which can be obstructed by a slider and open into the surrounding water to facilitate transverse steering.
  • a rudder is mounted near the outlet end of the tube while a propeller in the tube at its inlet end serves to drive the boat forward or backward. The flow of water through the tube can be blocked by a valve just rearwardly o the expulsion holes.
  • This invention relates to a motorboat having at least one stabilizer tube which is arranged under the waterline substantially in the longitudinal direction of the boat and substantially horizontal as well as substantially in a straight line in or on the boat's hull and firmly connected thereto, also including means adapted to drive water through the stabilizer tube, characterized in that the rudder blade is arranged directly behind the stabilizer tube in the stream expelled from the tube, the stabilizer tube being provided substantially in the longitudinal center of the lateral plane of the boat both on the port side as well as on the starboard side, with water-expelling openings selectively closable and throttling, means being provided for completely or partially closing one of the mouth ends of the stabilizer tube.
  • Propulsion of the boat is then effected on the one hand by the suction or pulling action at the water inlet mouth and on the other hand by the reacting force of the water column at the outlet mouth of the stabilizer tube.
  • the same will preferably be led through the body of the boat lengthwise in the middle thereof.
  • these are preferably arranged symmetrical with the longitudinal axis of the boat.
  • Moving the boat backwards is achieved by corresponding reversal of the movement of the water column.
  • the steering of the boat is effected by a rudder blade arranged immediately behind the stabilizer tube, and'additionally, with the adoption of several stabilizer tubes, by selectively throttling or opening the starboard or port lateral water-expelling openings.
  • the boat Because of the considerable weight of the water present in the stabilizer tube and uniformly distributed along the boats hull, as well as because of the inertia of the linearly moved water column, the boat is strongly stabilized lengthwise, and receives also a corresponding stabilizing when several stabilizer tubes are arranged symmetrically.
  • the selectively closable or throttling waterexpulsion openings in the stabilizer tube both at the port side and starboard side, as well as the device for shutting down the cross-sectional area of flow entirely or partly, serve to enable the water to flow out as desired to a great extent or entirely sideways instead of backwards.
  • the arranging of the lateral water-expulsion openings in the region of the longitudinal center of the lateral plane of the boat has thus the advantage that the water-expulsion openings do not emerge from the water, even when they are heavy waves, so that the action remains uniform.
  • FIG. 1 shows the plan of the boat according to the first form, with cross-sectional profile drawn hatched;
  • FIG. 2 is an elevation to FIG. 1, with details in vertical section;
  • FIG. 3 is a plan of the second form of the boat, with crosssectional profile drawn hatched;
  • FIG. 4 shows an elevation to FIG. 3, with details in vertical section
  • FIG. 5 is a plan of the third form of the boat, with cross-sectional profile drawn hatched, and
  • FIG. 6 is an elevation corresponding to FIG. 5, with several parts in vertical section.
  • reference character 1 designates the hull of a boat or of a motorboat.
  • the bow of the boat houses the motor 2 inclined downwards to the front and serving to drive a shaft 4 through a gear 3, a screw 5 designed as propeller being arranged on the free end of the shaft.
  • the propeller projects into the interior of a tube 6 which extends lengthwise of the hull of the boat and passes therethrough under the waterline WL-WL.
  • the stabilizer tube 6 is provided at the port and at the starboard side with additional water-expulsion openings 9 which can be selectively held open, throttled or even completely closed by means of valves l0, 10 arranged at both sides of the tube.
  • valves are actuated by two hand levers 11,11 which are pivoted to the hull at 12 and are connected with their forked ends through linkage to the valves 10,10.
  • Numeral 13 denotes a throttle valve fitted into the stabilizer tube 6; by means of the valve 13 the cross-sectional area of flow of tube 6 can be either throttled or completely closed.
  • the throttle valve 13 is actuated by a handwheel 14 which is operatively connected thereto through a linkage 15.
  • numeral 16 denotes the rudder blade which can be turned round a vertical axis in the longitudinal central plane of the stabilizer tube 6.
  • throttle valve 13 is closed more or less or even altogether, and valve 10 at the starboard side is more or less opened.
  • valve 10 at the starboard side is more or less opened.
  • the water drawnin by propeller 6 through stem opening 7 of tube 6 is expelled through the starboard openings 9, whereby the boat will be moved transversely to port. Since the openings 9 for the lateral expulsion of water are in the longitudinal middle of the lateral plane or in the region of the center of gravity of the lateral plane, the boat will be moved practically transversely, i.e. perpendicular to its longitudinal axis.
  • numeral 1 again designates the hull of the boat.
  • two motors 2,2 which are connected through two gears 3 and 3' with two driving shafts 4 and 4', transmitting their power to two propellers 5 and 5'.
  • two stabilizer tubes 6 and 6' are provided in mirror image arrangement with reference to the boat's longitudinal axis. In the region of the water inlet and water outlet openings 7,8, the stabilizer tubes 6,6 extend lengthwise of the boat.
  • the items 9-15 have been omitted in FIGS. 3 and 4. In other respects the handling and action are the same as in the aforedescribed form.
  • three stabilizing tubes 6,6',6" are arranged. Accordingly, three motors 2,2',2" are provided, each of which drives a shaft 4,4,4 as well as a propeller 5,5',5" through a shaft 3,33".
  • the lateral waterexpelling openings 9,9 are provided only in the stabilizer tube 6 disposed in the longitudinal central plane of the board.
  • the two valves 10,10 for closing or opening the lateral water outlets 9,9 there is provided one drum 10" which can be turned round its longitudinal central axis. Said drum is operable by means of a handcrank 19 through a chain gear 18 arranged in a casing 17. Also in contrast to the example as in FIGS. 1 and 2, in the form according to FIGS.
  • valve 13' by means of which the cross-sectional area of flow of the stabilizer tube 6 can be throttled or shut down completely.
  • 'Raising or lowering of valve 13 is brought about by a spindle 21 arranged in a casing and connected to a handcrank 23 through a chain gear 22.
  • Reference characters l6,l6,l6" denote three rudder blades disposed in the vertical longitudinal central planes of stabilizer tubes 6, 6', 6".
  • the handling and action are the same as in t bodim am t u s-4am
  • the diameter of the stabilizer tube (or tubes) should have a value not less than half the draught of the boat.
  • a stabilizing system for a boat having a hull comprising a tube fixed to the hull longitudinally of the boat being the waterline thereof, said tube having an inlet and an outlet respectively at the bow and the stern of the boat and having a plurality of axially spaced lateral holes in its midsection opening directly into the surrounding water;
  • propulsion means adjacent said inlet
  • shutter means in said tube intermediate said holes and said outlet for selectively blocking the flow of water through said tube;
  • a rudder movably connected to the hull and extending outside said tube adjacent said outlet;
  • slider means in said tube juxtaposed with said midsection for selectively opening and closing said holes, said slider means having axially spaced openings respectively alignable with said holes;
  • said shutter means comprises a rotatable valve disk and a lever linked therewith for rotating same.
  • said slider means comprises an elongated perforated plate, said operating means including a handle engaging said plate and projecting from said tube.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • Ocean & Marine Engineering (AREA)
  • Control Of Throttle Valves Provided In The Intake System Or In The Exhaust System (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Toys (AREA)
US842469A 1968-07-19 1969-07-17 Motorboat Expired - Lifetime US3610197A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH1105468A CH494672A (de) 1968-07-19 1968-07-19 Motorboot mit Schraubenantrieb

Publications (1)

Publication Number Publication Date
US3610197A true US3610197A (en) 1971-10-05

Family

ID=4369598

Family Applications (1)

Application Number Title Priority Date Filing Date
US842469A Expired - Lifetime US3610197A (en) 1968-07-19 1969-07-17 Motorboat

Country Status (4)

Country Link
US (1) US3610197A (de)
CH (1) CH494672A (de)
DE (1) DE1935037A1 (de)
GB (1) GB1240589A (de)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4138963A (en) * 1977-10-26 1979-02-13 Thompson William C Boat steering mechanism
GB2241479A (en) * 1989-11-25 1991-09-04 Geoffrey William Lord Water jet propulsion duct with controlled openings to steer vessel
WO2017094073A1 (ja) * 2015-11-30 2017-06-08 森　敏文 船舶推進装置及び船舶

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1594463A (de) * 1968-12-13 1970-06-01
DE3916882A1 (de) * 1989-05-24 1990-11-29 Laukien Guenther Verfahren und vorrichtung zum antreiben von wasserfahrzeugen
DE59010748D1 (de) * 1989-05-24 1997-09-11 Guenther Laukien Verfahren und vorrichtung zum antreiben von wasserfahrzeugen
DE3932918A1 (de) * 1989-10-03 1991-04-11 Laukien Guenther Vorrichtung zum antreiben von wasserfahrzeugen
DE3924996A1 (de) * 1989-07-28 1991-02-07 Laukien Guenther Verfahren und vorrichtung zum antreiben von wasserfahrzeugen
FR2676401A1 (fr) * 1991-05-14 1992-11-20 Chausson Ingenierie Procede pour le refroidissement du moteur et la climatisation de vehicules et dispositif pour sa mise en óoeuvre.
DE10035454C2 (de) * 2000-07-19 2003-02-13 Heinrich Bastian Verfahren zum Antrieb und Abbremsen eines schwimmfähigen Fahrzeugs
GB2451882A (en) * 2007-08-16 2009-02-18 Paul Tinklin Vessel with longitudinally extending propulsion channel

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467022A (en) * 1946-07-17 1949-04-12 Frank A Forlano Marine propulsion and steering device
US3155065A (en) * 1963-05-03 1964-11-03 Strumskis Louis Ship stabilizer
US3412705A (en) * 1967-06-27 1968-11-26 Jean J. Nesson Navigational system

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2467022A (en) * 1946-07-17 1949-04-12 Frank A Forlano Marine propulsion and steering device
US3155065A (en) * 1963-05-03 1964-11-03 Strumskis Louis Ship stabilizer
US3412705A (en) * 1967-06-27 1968-11-26 Jean J. Nesson Navigational system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4138963A (en) * 1977-10-26 1979-02-13 Thompson William C Boat steering mechanism
GB2241479A (en) * 1989-11-25 1991-09-04 Geoffrey William Lord Water jet propulsion duct with controlled openings to steer vessel
WO2017094073A1 (ja) * 2015-11-30 2017-06-08 森　敏文 船舶推進装置及び船舶

Also Published As

Publication number Publication date
GB1240589A (en) 1971-07-28
DE1935037A1 (de) 1970-03-12
CH494672A (de) 1970-08-15

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