used in catamaran-type vessels

The present invention gondola drive assembly disposed in front of a boat used in catamaran-type vessels.

In the inland waterway and maritime commonly propulsion catamaran-type internal combustion engines used outboard - or less stationary trailer - mounted in the hull floats. The use of this type of construction is recommended for boats dedicated to swim through shallow waters, due to the absence of the keel reduced use of this type of immersion to a minimum. Units based on the structure of two or three of the float have a high lateral stability. However, this limits the possibility of using a stationary engine to the drive.

From the Polish Patent No. 379826 discloses a method for obtaining slides speedboat on water cosolvents on left fairway wave distribution and hull speedboat to obtain water slides for left not forming a fairway wave panel. The described method can be used in the construction of boats used for water reservoirs, where flowing at a high speed boat does not produce the stern wave distribution and does not cause interference affecting the way, and the effect of other vessels swimming eg. Sports rowing competitions. Are known from the prior art various types of boats moving through the water in the slip. Most of this type of boat has a hull with a cross-section of the letter "V". This construction of the hull makes at higher speeds significantly decreases the draft, while improving the transversal stability and maneuverability, but increases water resistance. Moreover, when the shape of the support surface the stern is greater than on the bow causes an increase in resistance as it increases the height of the bow wave. For this reason, the slider tends to bounce and roll lengthwise. There is also suitable for swimming to shallow rivers with fast and strong currents and at high tide.

From Polish Patent No. 185609 is known slide through the front of the hull has the shape of an isosceles triangle with the front and the back of the rectangle, and the hull is provided with one or more of the waveguides extending along the bottom, parallel to the center line of the bottom. Moreover, the guide cross-section is greater at the front and the back lower,

U.S. Patent No. 2938490 is known hull bottom whose cross section has alternating protrusions and recesses in the form of tunnels extending from bow to stern and a width and a height decreasing towards the stern.

From French Patent No. WO 89/25756 is known a float consisting of two parallel hulls which are symmetrical with respect to the axis integrally with a raised deck with a central rail for fixing the foot of the mast, which is positioned in front 2/3 Part float completely in front of the deck.

In Chinese Patent Application No. WO 2004/020282 Al discloses a utility model unit of the water jet propulsion ^" device comprising a fuselage and a jet propulsion device. Water jet propulsion device comprises a propeller and a pipe supplying water under pressure. Water jet propulsion device is mounted in the aft part of the ship. In general, the screw is mounted in the housing bolts, screws and the housing is fixed to the stern. Directing a stream of water pipes are disposed in the housing pipe, the outlet from these pipe situated beyond the housing. The casing tube is connected to the rotor housing of the screw. Jet propulsion device can be easily installed and maintained so as not to destroy other elements. The invention has the advantage of low power, therefore it can be used in relatively shallow water.

From French Patent No. WO 2007/023215 Al discloses a monohull vessel which by appropriate location of the float relative to the center of buoyancy of the vessel was achieved by 5% preferred immersion line of the hull from the water line.

With the New Zeland Patent No. WO 00/06448 is known a double hull of a vessel known as a catamaran, preferably performed with a rotary molded plastics and hulls heads preferably adjustable along the axis of the hulls in relation to the gondola. The ship is manually operated and the best hand-accelerated. The drive is above or in front of the engine. The hulls are shaped so as to minimize spraying front of the rudder and allow easy sliding on the sides. The design aims to improve the handling characteristics, stability and speed of such units. The aim of the invention is to provide a new design of the gondola drive assembly for watercraft or boat.

The gondola drive assembly according to the invention is characterized in that the drive is arranged in one of floats in the float center preferably in separate parts of the float which is the central separate gondola disposed at the front of the bow that is, the main drive of the nacelle drive with inboard not stern, where through the main nozzles is transmitted driving water jet, which controls a unit, derived pipes and divided into two parts left and right with the water jet thruster nozzle aft finished compressing and moving the directional nozzles are movably mounted on the reverse flap with nacelle increase is relative to the lateral floats.

Gondola attached by rubber cushions to the frame vibration damping strengthen cross-preferably after two double cushion to the frame - a total of six double pillows on three frames. The main drive of the nacelle is made up of interconnected elements in sequence: a stationary engine marine diesel preferably of directly to the engine flywheel is bolted angular vibration damper, in turn mounted electromagnetic coupling is preferably connected to a gear, wherein the gear housing directly attached to the motor rigidly like is connected to the clutch housing as a whole, and the transmission is connected to the backstop to disengage the gearbox, sequentially arranged to transfer power through the driving shaft with cardan joints or propulsor birfielda to the thruster jet, which when combined with the driving shaft jet propulsor is a pulley drive, preferably toothed or wedge, by means of a toothed belt or wedge DC electric motor, which electric motor is preferably arranged above the jet thruster and / or from the side; the water jet thruster is used as part of the drive power - propellant system / steering compressed medium - water.

As a stationary engine used a hybrid consisting of a main engine stationary and marine diesel auxiliary engine - the engine of the magnetic disc DC favorably on carbon brushes. Rig is mounted at its input, i.e. at the inlet openings, at least one separating grid thruster preferably a grid.

Nozzles tensioning direction and moving the nozzles have the design of the nozzle compression pivotally movably connected by means of apples with a directional nozzle, wherein the apple is articulated on the base sphere deposited on the ball.

Coupling rod directional nozzle reproachly left and right situated between nozzles pressurizing and moving directional nozzles, which is controlled by the steering wheel actuator. An advantage of embodiments of the invention is to enhance the pod relative to the floats eliminating the possibility of mechanical damage to the pod shell in contact with the bottom of the excursion of the water.

The location of the main engine in the gondola allows for much greater comfort traveling through better damping is depreciated relative to the engine nacelles and nacelle in addition to the rest of the structure by means of special anti-vibration rubber shock absorbers not only the engine but the whole drive system. In addition, the advantage is very good access service "from the top" to the drive motors and generator.

Use of the nacelle allows the use to propel the boat a stationary engine, an electromagnetic clutch which is connected to the jet thruster performs a dual role: the drive source and the source of electricity (used as a generator during standstill boat).

The gondola is also attached to a set of six swimmers using special double metal rubber pads, carrying the load directions: forward, backward, left, right, up, down, while suppressing the vibrations coming from the powertrain. Place the drive in a gondola floating affect the safety, comfort and quality of service and comfort engines travelers.

The advantage is the ability to easily service despite the engine placed under the deck - without the need for inspection hatches, service inside buildings.

An advantage of embodiments of the present invention is to eliminate such interference caused by cutting the water by the floats parallel and eliminating the phenomenon of inhibition by impact waves excited by the floats in the nacelle of the drive unit. With removal and dividing into two parts left and right with the water jet directed to the stern thruster unit, it is possible to increase the steering unit, the drive noise reduction and increase comfort.

Object of the solution shown in the embodiments of the drawings in which:

Fig. 1. Shows a front view of the gondola powertrain.

Fig. 2. Shows a side view of the gondola powertrain.

Fig. 3. Shows a cross-sectional view of the top of the gondola drive unit.

Fig. 4. Shows a view of the unit floats located on the katamaran gondola drive unit.

Fig. 5. Shows an overall view of the drive. Example 1 (Drive)

The drive is positioned in one of floats in the float center (2) in a separate section of the central float (2) constituting a separate nacelle (G) arranged at the front of the bow that is, the main drive of the nacelle (G] is driven with the motor stationary (8J does not stern, where through the main nozzles (17) is transmitted driving water jet, which is controlled entity derived and divided into two tubes left and right of the water jet propulsor {£) to the aft nozzle completed pressurizing and moving directional nozzles {7} with movably mounted thereon inverted flaps i§}, wherein the gondola (G) to raise the relative swimmers side {1}.

Gondola j[GJ is attached by rubber pads {KJ of the vibration damping strengthening frame section (3) on the two double cushion (K) on the frame (3) - a total of six double bag (KJ at three of the frame (3).

The main drive of the nacelle 1GJ consists of interconnected elements in sequence: a stationary marine engine - diesel, where directly to the flywheel (8J is screwed angular vibration damper (10) in turn is mounted an electromagnetic clutch (SE) connected to a transmission {9J, wherein the gear housing directly attached to the motor rigidly like is connected to the clutch housing as a whole, a gear [9] is connected to the one-way clutch for disengaging the gearbox, sequentially arranged to transfer drive through the driving shaft (11) cardan joints birfielda of the propeller or water jet propulsor ( ], which when combined driving shaft (11) of the water jet propulsor (P) is the drive pulley, gear, or wedge, via a toothed belt or V-DC electric motor, which this electric motor is arranged above the water jet propulsor (P) and / or from the side; the water jet propulsor ( ] is used as part of the drive power - propellant system / steering compressed medium - water.

As a stationary engine (8) used a hybrid consisting of a main engine stationary and marine diesel auxiliary engine - the engine of the magnetic disc DC with carbon brushes.

The water jet propulsor (PJ is mounted at its input, i.e. at the inlet openings, at least one separating grid thruster (S) in the form of a grid.

Nozzles tensioning direction and moving the nozzles (7) have the nozzle design of the compression pivotally movably connected by means of apples (J) with a directional nozzle (DK), the apple (J) is based on a ball joint deposited on the ball.

Coupling rod directional nozzle reproachly left and right (DSS) is between the nozzles situated pressurizing and moving directional nozzles (7J, which is controlled by the steering wheel actuator (SKS).

Example 2 (Raising the gondola terms swimmers)

The drive is positioned in one of floats in the float center J ] in a separate section of the central float (2) constituting a separate nacelle {GJ arranged at the front of the bow that is, the main drive of the nacelle {GJ is driven with the motor stationary (8J does not stern, where through the main nozzles (17) is transmitted driving water jet, which is controlled entity derived and divided into two tubes left and right of the water jet propulsor (PJ to the aft nozzle completed pressurizing and moving directional nozzles (7J with movably mounted thereon inverted flaps (6J, wherein the gondola (G) to raise the relative swimmers side (1).

Since Houseboat boats are mainly used for inland navigation, and therefore in the shallow waters, there is a risk of damage for engine nacelle collision with the bottom.

To avoid such a situation developed solution gondola lift powertrain terms of supporting the boat floats taking into account the maximum draft terms of mirrors to 350 [mm].

Example 3 (placement engine nacelle front of the boat)

The drive is positioned in one of floats in the float center 21 in a separate section of the central float (2) constituting a separate nacelle {G arranged at the front of the bow that is, the main drive of the nacelle {G] is driven with the motor stationary {8} does not stern, where through the main nozzles (17 is transmitted driving water jet, which is controlled entity derived and divided into two tubes left and right of the water jet propulsor {£) to the aft nozzle completed pressurizing and moving directional nozzles (7) with movably mounted thereon inverted flaps 161, wherein the gondola (G) to raise the relative swimmers side (1).

Place the drive in a detachable gondola floating on the front of the boat gives you the ability to easily service despite the engine placed under the deck - without the need for inspection hatches, service inside buildings. This allows an increase in passenger comfort - the quieter, better separation of odors from the driver of the passenger compartment, eliminating the phenomenon of inhibition as a result of overlapping waves and impoundment of water at the point of immersion gondola. Example 4 (Use of the propeller jet drive boat Houseboat)

The drive is positioned in one of floats in the float center {2] in a separate section of the central float (2) constituting a separate nacelle {G] arranged at the front of the bow that is, the main drive of the nacelle {GJ is driven with the motor stationary (8J does not stern, where through the main nozzles (17) is transmitted driving water jet, which is controlled entity derived and divided into two tubes left and right of the water jet propulsor (P) to the aft nozzle completed pressurizing and moving directional nozzles £7] with movably mounted thereon inverted flaps 16), wherein the gondola (G) to raise the relative swimmers side (1).

Water jet propulsors have long been used in sports motorboat sliding units - water jet drives feature an excellent capacity utilization factor which is a desirable drives houseboat boats that have a heavy weight (5,000 kg).

Place the drive in front of the boat entails the need to exit the water stream to stern of the boat, where it should be done the work drive. In order to maintain the stability of the boat maneuvering jets developed a solution to divide into two parts, the right and left released on each of the floats around the stern.

List of elements:

1 - side floats

2 - float center

3 - longitudinal reinforcements

4 - longitudinal reinforcements mounting slot

5 - unit for longitudinal reinforcements mounting slot

6 - reverse flap 7 - compression and movable directional nozzles

8 - stationary engine

9 - gear

10 - vibration damper with electromagnetic clutch 11 - drive shaft

12 - revision service

13 - collar mounting socket

14 - strengthen the upper transverse mounting socket

15 - strengthen the lower transverse mounting socket 16 - closing valve float upper side

17 - main water outlet connector left and right

SKS - servo steering wheel

DSS - coupling rod with directional nozzle Left and Right DS - prestressing nozzle

DK - directional nozzle

G -engine gondole

J - apple

K-rubber gondola cushion

P- water jet propulsor

S -grille separating propulsor

SE- electromagnetic clutch