Nautical drive assembly with combined action of thrust and sudden turn

Abstract

 The invented device foresees to actuate the moving of the ogive (1), bearing the propeller and determing the right or left turn, a mechanical drive group made by a conical couple with inside gear which constantly acts as power angled drive on the same ogive axis. Said ogive (1) is mounted on a tube (6) connected integral with the stern, housing a hydraulic drive (7) which rotates the ogive (1). The boat steering wheel acts on the hydraulic drive (7) which drives the ogive (1) determining the right or left turn.

Description

[0001] The invention refers to a mechanical nautical drive assembly made by a couple of bevel gears with inside gear acting as angled power drive on the propeller axis which realizes a combined action or thrust and of sudden turn. It is an essential characteristic of the invented means said system of angled power drive which come to operate to standing thrust linearity so acting in condition of even trim maintenance of the boat also during the propeller axis movings to determine a sudden turn in one way or in the other one. This permits that the power propels by the propulsion system had the lowest dispersion possible and it determines regging-ability such the propeller torsion, which comes to determine in rigging to actuate the propeller axis variation, completely diverts the flow determined by this. In turn is in this way permits to change the boat direction by the moving in torsion of said ogive without to must use ballast tanks. The current nautical drive devices foresee the use of a stern group "or foot" essentially formed by a diped propeller fairwater: "the ogive" drives by two couples of bevel gears and by a Hooke's joint or alternatively by a double Hooke's joint. Said systems acting a linearity in the drive come to determine a high power loss propels by the propulsion system and they request the presence of complex mechanisms such the two couples of bevel gears and of the universal joint or double Hooke assemblies. The invented means in comparison with the current systems realizes a foundamental industrial advancement both regarding to the drive kind, such as it acts also in turn rigging to standing linear effect of thrust, than on the drive devices resulting of essential kind. The invented means foresees a greatly semplified system by use a new kind of nautical drive system which uses, to actuate the moving of the ogive bringing the propeller so changing the direction axis, a mechanical drive assembly formed by a conical couple with inside gear which constantely acts as power angled drive on the same ogive axis. The invented drive system is substantially characterized by a mechanical nautical drive assembly formed by an ogive 1 housing a pinion 2 and an internal gear 3 mounted on bearings 4. The oil/water seal is permitted by a baked clay seal 5. The ogive 1 is then mounted on a tubo 6 connected integral with the stern housing a torsion hydraulic drive 7 which drives the torsion of the same ogive. Said hydraulic drive 7 moreover acts on a lever drive 8 synchro-mesh with a balanced rudder or of synchronism in the case of installation of one or more group. Driving the boat sterring wheel, by a conventional hydraulic device, is acting on the hydraulic drive 7 which drive the ogive 1 determining the right or left turn. Schematic form of the invented nautical drive assembly with combined action of thrust and sudden turn is illustrated in drawings of sheets 1 and 2. In sheet 1 fig. 1 is longitudinal section view of all the device. It is showed in said figure the synchronism lever drive 8 which can drive an eventual auxiliary rudder and it can be use to actuate the synchronism in the driving of one or more connected group, being the connection realized by the jointed bar actuating the drive of the synchronisms so to permit to have the turn sync of the two drive assemblies or of the more stern groups. In sheet 2 fig. 2 is partial plant view of the same assembly of fig. 1 with in hatching view the ogive position change which determines the position change of the propeller axis and consequently it determines the boat direction change. Fig. 3 is plant view of all the invented device mounted in position to stern and showing the drive devices. In the realizations: the single elements, the kind of materials and the auxiliary parts can be foreseen in different way referring to the use necessities.

Claims

1. Nautical drive assembly with combined action of thrust and sudden turn formed by an ogive (1) housing a pinion (2) and an internal gear (3) mounted on bearings (4) characterized in that the ogive (1) is mounted on a tube (6) connected integral with the stern housing a torsion hydraulic drive (7) which drives the torsion of the same ogive, said hydraulic drive (7) moreover acts on a lever drive (8) synchro-mesh with a balanced rudder; in this way driving the boat sterring wheel by a conventional hydraulic device is acting on the hydraulic drive (7) which drives the ogive (1) determining the right or left turn.

2. Nautical drive assembly with combined action of thrust and sudden turn, as in claim 1, in that the oil/water seal is permitted by a baked clay seal (5).

3. Nautical drive assembly with combined action of thrust and sudden turn, as in claim 1, in that alternatively to the balanced rudder is foreseen the use of a synchronism rudder in case of installation of more groups.

Drawing