A cooling system for a water-borne vessel (1) is disclosed. The system comprises a strut (5) for supporting a propeller shaft (4) of the vessel, the strut (5) comprising a fluid inlet (8), a fluid outlet (9), and a channel (10) inside the strut (5) for transporting fluid between the fluid inlet and fluid outlet, one or more fluid conduits coupling the fluid inlet and outlet to a component to be cooled, and a pump for circulating a fluid through the conduits and said channel.
F01P 3/20 - Cooling circuits not specific to a single part of engine or machine
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F28D 1/02 - Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with the heat-exchange conduits immersed in the body of fluid
A cooling system for a water-borne vessel (1) is disclosed. The system comprises a strut (5) for supporting a propeller shaft (4) of the vessel, the strut (5) comprising a fluid inlet (8), a fluid outlet (9), and a channel (10) inside the strut (5) for transporting fluid between the fluid inlet and fluid outlet, one or more fluid conduits coupling the fluid inlet and outlet to a component to be cooled, and a pump for circulating a fluid through the conduits and said channel.
B63H 21/38 - Apparatus or methods specially adapted for use on marine vessels, for handling power plant or unit liquids, e.g. lubricants, coolants, fuels or the like
F01P 3/20 - Cooling circuits not specific to a single part of engine or machine
B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
3.
Method and apparatus in an electric propulsion arrangement of a sailing vessel
The object of the invention is a method and an apparatus in an electric propulsion arrangement of a sailing vessel, wherein the sailing vessel has a traction device provided with an electric motor and with a propeller mechanism, the electric motor of traction device is arranged to be used, if necessary, in forward drive and reverse drive as well as during sailing as a generator for charging the accumulators of the sailing vessel. The propeller mechanism comprises a propeller hub with blades, a hollow propeller shaft fixed at its first end to the propeller hub, a shaft controlling the pitch angles of the propeller blades, said control shaft rotating inside the propeller shaft, and a servomotor rotating the control shaft. The servomotor is fixed to the second end of the propeller shaft to be rotatable along with the propeller shaft.
B60L 11/00 - Electric propulsion with power supplied within the vehicle (B60L 8/00, B60L 13/00 take precedence;arrangements or mounting of prime-movers consisting of electric motors and internal combustion engines for mutual or common propulsion B60K 6/20)
B63H 21/17 - Use of propulsion power plant or units on vessels the vessels being motor-driven by electric motor
B63H 3/02 - Propeller-blade pitch changing actuated by control element coaxial with propeller shaft, e.g. the control element being rotary
B63H 23/08 - Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit with provision for reversing drive
B63H 3/10 - Propeller-blade pitch changing characterised by having pitch control conjoint with propulsion-plant control
B63H 23/06 - Transmitting power from propulsion power plant to propulsive elements with mechanical gearing for transmitting drive from a single propulsion power unit
H02P 9/00 - Arrangements for controlling electric generators for the purpose of obtaining a desired output
H02P 6/30 - Arrangements for controlling the direction of rotation
H02K 7/18 - Structural association of electric generators with mechanical driving motors, e.g.with turbines
H02K 7/14 - Structural association with mechanical loads, e.g. with hand-held machine tools or fans
H02K 11/21 - Devices for sensing speed or position, or actuated thereby
B63B 35/00 - Vessels or similar floating structures specially adapted for specific purposes and not otherwise provided for
A mount (30) for a boat propulsion unit comprises a collar (32) for mounting around an aperture in a boat's hull, the collar having an annular groove (34) on an inner surface thereof; a first mating part (38) for mounting an inboard portion of a propulsion unit to the boat; and a second mating part (40), connectable to the first mating part, for mounting an outboard portion of a propulsion unit to the boat. The first and second mating parts are connectable through the collar and are configured such that when they are connected they form an external annular recess in an outer surface and an annular gasket (36) is located partly in the groove and partly in the recess to form a seal there -between.
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