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WO/1996/004984A1 |
The invention concerns an agitator for fluids which contain solids of fibres and prevents these substances entering the gap (8) between the propeller boss (5) and the drive motor housing (1). To this end, a resilient deflector ring (9) o...
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WO/1996/005101A1 |
A mounting assembly, for mounting a propeller hub (10) to a propeller drive shaft (12), including an adaptor (11) which has an internal bore (17) which is splined for engagement with splines (19) on the shaft (12) and which has an extern...
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WO/1996/005100A1 |
Two stage positive sealing device for high speed boat propeller shafts, with forced oil circulation for lubricating and cooling purposes provided by an integrated generator. A pump body, formed of an asymmetric static chamber housed with...
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WO/1996/001207A1 |
Submersible boat is capable of navigating both on the water surface and submerged, the diving taking place by dynamic effect when the operator requires it, the boat having a catamaran type structure, comprising two side floats (1-1') whi...
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WO/1995/021344A1 |
A seal for sealing the propshaft (23) of a power boat to its hull is disclosed. An engine is mounted within the hull to drive the propshaft (23). The seal includes a stationary seal housing (21) affixed to the hull and a gland housing (1...
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WO/1995/012075A1 |
A bearing arrangement for the drive pinion (82) of a marine transmission (70) mounts the pinion (82) in part on the shaft (80) driving the pinion and in part directly in the transmission housing (76), thus reducing loads imposed on the s...
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WO/1995/003211A1 |
The invention relates to a drive unit for a ship, comprising a gearbox (5) placed on a bedplate in the ship and two screw propellers (75, 76) rotating in opposite directions about a common axis. The screw propellers are driven by two con...
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WO/1995/002535A1 |
The proposed propeller unit comprises a propeller shaft mounted in such a way that its position in relation to the hull can be adjusted both when the vessel is at anchor and under way. Propeller blades mounted on the shaft are shaped in ...
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WO/1995/000391A1 |
The boundary layer of a fluid travelling in a mean-flow direction relative to a surface of a wall of a body is controlled by generating in the fluid a magnetic field B having flux lines along the surface of the wall and an electric curre...
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WO/1994/029170A1 |
The invention relates to a method and a device for continuous and automatic monitoring and alignment of a propeller shaft (A), mounted in a plurality of bearings, in a ship upon hull deformations during operation. The inventive method su...
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WO/1994/029169A1 |
High speed boats can be operated and steered by a water jet which is generated by a pump the shaft of which is directly coupled to a driving motor (10). According to the invention the engine shaft and the pump hub shaft parallel to each ...
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WO/1994/025342A1 |
A shroud (1) is of aerofoil section to reduce cavitation and drag, has convex side faces which meet to form two edges (5 and 6). The trailing edge (5) is of V-section, and the leading edge (6) may be of V-section or rounded. The root end...
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WO/1994/018458A1 |
An axial-flow pump combined with an electric motor coaxially arranged therearound. The rotor (1) and stator (2) are common to both the electric motor and the pump. The rotor comprises a central tubular portion (11) defining a central cha...
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WO/1994/014649A1 |
The invention relates to a propeller drive system for a vessel or the like for operating two contra-rotating propellers (1, 2) disposed on two coaxial shafts (3, 4) in succession. The power supplies of two electric motors (5, 6) rotating...
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WO/1994/012387A1 |
Compression washer assembly with line cutter for mounting on a boat propeller shaft between a shoulder on the shaft and the end of a propeller hub. The compression washer assembly (10) comprises a hub portion (9) with a cross section con...
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WO/1994/010030A1 |
An internal combustion engine for propelling a ship includes a flexible coupling (1) mounted between the thrust bearing of the engine and a shaft segment (3) connected with the propeller. An oblong rod (10) interconnects two hollow shaft...
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WO/1994/001699A1 |
The invention relates to a drive system comprising at least one drive source (P) delivering its power by means of a driving, rotation-and-torque transmitting element (T), at least one speed variator (V) and at least one driven, rotation-...
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WO/1993/018965A1 |
A through hull assembly to be incorporated in a marine drive has a housing (15, 16) secured to the hull (10). The housing (15, 16) consists of a rearward tubular section (15) and a forward section (16). The tubular section (15) is of a l...
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WO/1993/016916A1 |
When fitting a ship's propeller (11) underwater, the propeller is mounted on a end-part (15) of the propeller shaft (16) which projects rearwardly from a bearing assembly (17) on the ship. Sealed spaces (27, 45) which are defined by the ...
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WO/1993/017249A1 |
A thrust bearing of the Michell type is arranged in such a manner around an associated journal bearing (21; 39) that one set of the thrust segments (25, 25', 25'') is positioned on one side of the bearing while the other set of thrust se...
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WO/1993/015952A1 |
A propeller with a hub (10) affixed to a propeller shaft (3) so as to rotate therewith, which hub is axially locked by a locking arrangement consisting of a lock nut (34) screwed onto the shaft and a lock screw (35) screwed into the end ...
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WO/1993/005317A1 |
Transmission for boats, comprising an input shaft (2), a reversing mechanism and an output shaft (3). The reversing mechanism is comprised in a right angled bevel gearing with two bevel gears (7, 8), which are freely rotatably mounted on...
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WO/1993/002914A1 |
A control system for operating the drive assembly of a ship has an engine (1), a gear (3) and an adjustable clutch (4) for forward and reverse motion. A control station (15), a control lever (27) and control electronics (15) allow the di...
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WO/1993/001429A1 |
A rotational force enhancing device intended to enhance rotational force by virtue of rotational force produced by mounting a rotational member other than a rotational implement (A) on a rotational shaft or modifying the shape of the rot...
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WO/1993/000529A1 |
A transmission for use in marine inboards in which the apparatus is coupled to an input shaft (16) having rotational energy and an output shaft (18) coupled to a propeller wherein the apparatus utilizes clutches (40, 60, 80) of the hyper...
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WO/1992/020573A1 |
This invention relates to a marine jet drive having improved operation, especially in regard to having efficient adaptation to propulsion engine (7) and hull design; having a drive shaft (6) with flexible coupling (33, 34) at each end, i...
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WO/1992/011472A1 |
A marine reduction gearbox, or transmission, is provided with variably engageable clutches (26, 30) connected in torque transmitting relation between a prime mover (12) and a propeller shaft (14). These variably engageable clutches (26, ...
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WO/1992/006001A1 |
An outboard motor assembly includes a hydraulic pump (50) which is carried by the motor assembly and is drivingly connected to the main drive shaft (60) at a point located between the motor and the propeller shaft. The hydraulic fluid st...
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WO/1992/001600A1 |
A hub (1) in particular for marine propellers (4) comprises an inner hub (2) adapted to be firmly mounted on a drive shaft (5), an outer hub (3) arranged about said inner hub with a gap (18) and carrying the propeller (4), and an elastom...
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WO/1991/019643A1 |
An outdrive system (12) for watercraft includes use of plastic or other relatively flexible material, e.g., compared to metal, especially as a housing material, and techniques which enable and/or at least facilitate use of such housing m...
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WO/1991/019644A1 |
An arrangement in a swingable turn-up inboard/outboard stern aggregate (1) for craft with an inboard engine and an outboard driving means (2) comprising a screw (5), where the inboard driving shaft (3) of the stern aggregate (1) for conn...
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WO/1991/008946A1 |
A method and a device for power transmission from a motor having a supercharging assembly, particularly a supercharged Diesel-engine (7), to a gear (3) with a surface water driving propeller mechanism (4), mounted in a boat of the planin...
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WO/1991/005695A1 |
A vessel (10) has a semi-displacement or semi-planing round bilge hull (11) characterized by low length-to-beam ratio (between about 5.0 to 7.0) and utilizing hydrodynamic lift. The bottom (15) of the hull (11) rises toward the stern (17...
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WO/1990/010572A1 |
A hydrofoil propulsion system (10) utilizing dual water propellers (16) in combination with dual shrouded air propellers (18). The air propellers (18) and the water propellers (16) are powered by diesel engines (22) mounted in pairs insi...
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WO/1989/008044A1 |
A marine drive unit (1) includes a lower gear case (8) forming a torpedo housing (9). A pair of coaxial propeller shafts (21, 25) are rotatably mounted in the housing and carry a pair of propellers (10, 11) thereon. The propeller shafts ...
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WO/1989/008050A1 |
A marine drive unit (1) includes a lower torpedo housing (9). At least one propeller shaft (21) is mounted in the housing for rotation about a drive axis (17). The propeller shaft is driven by a driving gear (16) suitably connected to a ...
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WO/1989/006622A1 |
A device in drive units intended for boats, comprising an engine, a reversing gear, at least one propeller and a number of drive shafts (1) interconnecting said components, is designed to prevent reversing of the rotational direction of ...
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WO/1989/004275A1 |
A device permits numerous specific adaptations, each coaxial, to multi-pump and multi-turbine systems, which enable for example the load to be distributed on the shaft (13) of the propeller (12) and the operating safety to be increased. ...
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WO/1989/003341A1 |
The proposed propulsor comprises, a main engine, a fixed tubular part (A3, A5, A7), a main transmission (AD4, AD1, BD1, BD2) which ends with a substantially vertical shaft (BD3) which operates a bevel gear pair (BD12-BD13) on the substan...
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WO/1987/005274A1 |
A device in an inboard/outboard turnable and raisable rear aggregate (1) for boats having an inboard engine and an outboard drive unit (2), comprising a screw (5), with inboard drive shaft (3) of rear aggregate (1) for connection with th...
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WO/1987/004303A1 |
Electrical installation as described, with a battery which, as applicable, consists of several partial batteries which can be charged from a diesel generator, and supplies power to the electricity users on board. In order to improve the ...
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WO/1987/003856A1 |
A device for cutting lines liable to foul a propeller has a stationary cutting blade (24) and rotatable cutting blades (30, 32, 34). Cutting edges of the blades are formed with saw-tooth serrations. The blades are curved in their plane o...
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WO/1986/004033A1 |
A ship includes a rudder and a propeller having a propeller shaft arranged on a side of a stern of the ship. A bottom of a stern of the ship is made shallow to expose the propeller for a long distance and the rudder is arranged in a spac...
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WO/1984/001139A1 |
A propeller (12) fitted with an internal cast iron sleeve (15) is mounted onto a propeller shaft (10) by being force fitted onto a tapered conical portion (11) on the propeller shaft. The tapered portion (11) of the propeller shaft is ro...
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WO/1980/000429A1 |
The invention relates to power trains for auxiliary marine vessels such as tug boats. Prior power trains for such vessels lacked flexibility of operation, control, location, and were not as efficient as they could have been. In order to ...
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WO/1979/000943A1 |
An annular seal against the flow of fluid along a shaft (4). There is a rigid ring (15) with flexible flanges (10, 11) respectively radially inwards and outwards of the ring (15), one of which carries a sealing contact lip (9) against th...
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JP2024060366A |
[Problem] In a reduction/reversing machine 8 equipped with a housing 9 serving as an oil tank in which at least a pair of mutually meshing gears 56, 32 are housed, the occurrence of tooth surface seizure and fatigue damage due to lack of...
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JP2024042322A |
An object of the present invention is to provide a sealing device that can ensure sealing performance over a long period of time. [Solution] A circumferential surface that is attached to a housing 3 and that seals between the housing 3 a...
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JP7452214B2 |
There is provided a ship propulsion machine including: a drive shaft; a drive gear fixed to the drive shaft; a front gear meshed with the drive gear; a rear gear meshed with the drive gear; a rear propeller provided on an inner propeller...
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JP7441776B2 |
To secure redundancy in a structure for driving a propeller driving shaft of one axis by one main engine.A vessel 1 includes a hull 2 and a propulsion unit 20 installed in the hull, and the propulsion unit includes a main engine 30 havin...
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