Auxiliary propulsion system of waterborne vehicle
SUBSTANCE: invention relates to ship building and may be used in auxiliary propeller structures. auxiliary propulsion system of waterborne vehicle consist of propeller, system of its extension from waterborne vehicle body and shield-recess which is provided with additional extension system kinematically connected with this shield and located inside waterborne vehicle body.
EFFECT: implementation of invention permits to lower hydraulic resistance of auxiliary propulsion system and to increase its overall thrust.
The invention relates to the field of shipbuilding and can be used in the construction of auxiliary propulsion.
Known auxiliary propulsion system, designed for the movement of the vessel at low speed and which includes a propeller mounted on the vessel with a rotating mechanism (see Applebees and other "Means of active management of ships". Leningrad, Izd. "Shipbuilding", 1969, str, RES). The disadvantage of this complex is a great additional hydraulic resistance created by this complex, with the main propulsion due to the absence of shield-recess.
Closest to the claimed invention to the technical essence and the achieved result is an auxiliary propulsion system swimming facilities, consisting of a propulsion system extension propulsion of the hull vessels and shield-recess (valve cover that covers the cutout in the body and restoring the continuity of the plating) (see Applebees and other "Means of active control by the courts. Leningrad, Izd. "Shipbuilding", 1969, str, RES and str, RES). A disadvantage of the known designs is the increased hydraulic resistance vessels in its motion, as the shield-recess nominated together with auxiliary propulsion complex in sweat is the fluid during operation of this complex remains in the stream.
The purpose of the present invention is to reduce the hydraulic resistance of the auxiliary propulsion complex and increase the total thrust.
This goal is achieved by the fact that in the known auxiliary propulsion complex swimming facilities, consisting of a propulsion system extension propulsion of the hull vessels and shield-recess, it is equipped with an additional system of nomination, kinematically connected with the shield-recession and located inside swimming facilities. Introduction to the design of the auxiliary propulsion complex additional system extension allows after advancement of the mover in flux return shield-recess in its place (flush with the casing and thereby to reduce the hydraulic resistance of the thruster in the thread. This is particularly important when the auxiliary propulsion system is used as the primary failure of the main propulsion. In this case, the auxiliary propulsion complex requires bringing vessels to repair base. The smaller hydraulic resistance of the auxiliary propulsion complex, the greater will be its total thrust and the greater the distance will be able to go swimming tool. To exclude the hydraulic resistance from the introduction of advanced the system of nominating the latter is located inside the swimming tools.
The main view of the proposed design outside (shown dotted) and operating conditions shown in the figure with the following symbols:
1 - body swimming facilities;
2 - propulsion;
3 - extension system propulsion of the body;
4 - shield-recess;
5 - additional extension system;
6 - cover of propulsion;
7 - zone propulsion;
8 - shaft propulsion.
The proposed auxiliary propulsion system swimming means consists of a propulsion 2, accommodated in the housing 1. Idle mover is in zone 7, which is closed by the shield-recession 4 and the lid 6 of the propulsion device, arranged flush with the shell plating. Translation auxiliary propulsion complex in a working state using system 3 extension propulsion of the body. Shield-recess 4 kinematically associated with the additional extension system 5 located inside the housing 1 swimming facilities.
Auxiliary propulsion system operates as follows. In the off position the mover 2 is in zone 7, which is closed by a cover 6 propulsion and shield-recession 4. When you receive the command to translate complex in its working position the shield recess 4 is shifted by means of the optional system extensions 5 and propulsion 2 extension system 3 displays the I in the stream. Further, the shield-recess 4 additional extension system 5 is returned to its original position, leaving open only the location of the output shaft 8 of the housing 1. After work the mover 2 is removed in zone 7 in reverse order: extended shield-recess 4 additional extension system 5, the mover 2 extension system 3 is returned to the zone 7 and the shield-recess using the system 5 is installed flush with the surface 1 swimming facilities.
When using the supporting ring complexes propulsion to reduce the amount of area 7 may optionally be entered rotator. In this case, in the off position the mover 2 is placed horizontally, not vertically, parallel to the direction of motion of swimming facilities. For other types of propulsion their promotion of the hull vessels can occur without rotation of the propeller, which will be located in the housing vertically.
The use of the proposed solution can significantly reduce the hydraulic resistance of the auxiliary propulsion complex and thus increase its total thrust.
Auxiliary propulsion system swimming facilities, consisting of a propulsion system extension propulsion of the hull swimming among the STV and shield-recess, characterized in that it is provided with an additional extension system, kinematically connected with the shield-recession and located inside swimming facilities.
SUBSTANCE: invention relates to ship building, particularly, to ship after equipped with propulsive-steering gear arranged outside the ship hull. Ship after is equipped with crinoline. Crinoline deck has opening closed by detachable platform for propulsive-steering gear to be secured thereat. Guide posts are arranged along the edges of said opening with their top ends rigidly coupled with the bracket attached at ship hull.
EFFECT: improved operating and servicing conditions.
2 cl, 4 dwg
SUBSTANCE: method of manufacturing water vessel with improved characteristics of penetration into ice includes hull (1) with the first end (2) and the second end (3), which is provided with engine assembly creating main vessel propellent traction while vessel is moving with any end being forward. Engine assembly comprises at least three engine devices of which at least majority is antitorque propeller rotor devices (4) and located on at least two different distances from the second end (3) of vessel so that when the vessel is moving in ice or in ice formations with its second end (3) being forward, propeller rotor with one or more engine devices installed near the second end (3) of the vessel is positioned so that it breaks ice. Propeller rotor with one or more engine devices located further from the second end (3) of the vessel is positioned so that it moves broken ice or pieces of ice further from ice formations. Water vessel with improved characteristics of penetration into ice includes engine assembly with at least three engine devices of which at least majority is antitorque propeller rotor devices (4) and which are located on at least two different distances from the second end (3) of vessel so that when the vessel is moving in ice or in ice formations with its second end (3) being forward, propeller rotor with one or more engine devices installed near the second end (3) of the vessel is positioned so that it breaks ice.
EFFECT: vessel is capable to effectively break ice and move in heavy ice conditions.
11 cl, 2 dwg
SUBSTANCE: invention relates to ship building, particularly to water vehicles with screw propellers. Water vehicle comprises hull, drive tractor propeller that form foam. Said drive incorporates semisubmersible screw propeller that entraps air from ambient medium.
EFFECT: reduced drag, higher efficiency.
FIELD: ship building.
SUBSTANCE: one or several propulsion units (11, 12) are used as both auxiliary lateral thrust device and propulsion unit and arranged to displace in various position within the limits of ship cross section line.
EFFECT: manoeuvring in shallow waters.
11 cl, 3 dwg
FIELD: aircraft engineering.
SUBSTANCE: invention relates to outboard propulsion-steering complexes of watercrafts, mainly hydroplanes and amphibians. Proposed complex consists of power drive and full-rotary column with water propeller arranged in guide nozzle to move out, into transport position, and in. Full-rotary pivot-type column comprises upper angular reduction gear and lower angular reduction gear. Propulsion-steering complex is provided with mechanism transmitting rotation from power drive to water propeller and consisting of driven shaft and toothed coupling. Aforesaid mechanism consists of two parts, i.e. drive and driven. Mechanism drive part accommodates toothed coupling drive part, while driven part of the mechanism accommodates toothed coupling driven part. Propulsion-steering is furnished with fairing arranged on watercraft stern.
EFFECT: improved performances.
FIELD: shipping industry.
SUBSTANCE: invention refers to water equipment and can be used for spatial movement of the object on the surface or inside fluid medium and simultaneously providing the possibility of changing the direction of such movement. Rudder propeller is an electrically driven propulsion device of the floating object and includes screw blades, bladed propeller, and synchronous motor with constant magnets on the rotor. Synchronous motor stator can be rotated about vertical axis by means of other shaftless synchronous motors thus fixing the required position.
EFFECT: eliminating mechanical transmitting links, reducing consumption of materials, and improving manoeuvrability of movement and economy of useful energy conversion.
FIELD: shipbuilding; multi-purpose dry cargo vessels for carrying cargoes in water areas covered with ice and not covered with ice.
SUBSTANCE: proposed multi-purpose dry cargo vessel has hull with fore and aft extremities and sides provided with ice strengthening members. Hull bottom in aft extremity has inclined surface. Extent of cargo holds is no less than half length of vessel and maximum breadth is no less than ¾ of ship's extreme breadth. Main propulsion plant with propulsor is swivel in construction. Slewing axis of main propulsion plant is deflected at angle α from vertical in CL or in plane parallel to CL. Axis of thrust vector is also inclined at angle α from normal relative to slewing axis of main propulsion plant. Angle satisfies condition 0<α≤β/2, where β is angle whose magnitude is equal to magnitude of average angle of inclination of ship's bottom surface in aft extremity relative to ship's waterplane on inclined section of bottom located below level of point of intersection of main propulsion plant slewing axis with propulsor thrust vector axis.
EFFECT: reduced usage of material; enhanced survivability and durability of vessel.
15 cl, 4 dwg
FIELD: shipbuilding; carrying liquid cargo in water areas free from ice and in water areas covered with ice.
SUBSTANCE: proposed ship has fore and aft extremities of hull with main engine plant and propeller; engine plant is preferably mounted in aft extremity and is turnable relative to axis deflected from vertical in CL or in plane parallel to it. When running in water area covered with ice, ship moves with her aft extremity forward and vector of propeller thrust is directed at angle relative to plane of waterline contour upward away from center in ship's length, mainly in parallel with average angle of inclination of lower section of ship's bottom near main engine plant. When running in water area free from ice, ship moves with her fore extremity forward and vector of propeller thrust is directed in parallel with plane of waterline contour towards center in ship's length. Direction of propeller thrust vector is changed by turning the main engine plant around inclined axis which is deflected through angle α; vector of engine thrust of main engine plant is also deflected from normal to slewing axis of main engine plant through angle which satisfies the condition 0<α<β/2, where β is angle equal to average angle of inclination of bottom surface to respective extremity of ship in plane of waterline contour at inclined section of bottom located below point of intersection of slewing axis of main engine plant with axis of propeller thrust vector.
EFFECT: enhanced economical and operational efficiency; improved sea-going qualities in water area covered with ice.
24 cl, 7 dwg
FIELD: shipbuilding; methods of transportation of liquid cargoes in bulk by means of tankers.
SUBSTANCE: proposed method includes loading of cargoes on board the tanker or unloading them from tanker, motion of tanker in open water area or in water area covered with ice to point of delivery with the aid of main propulsive plant provided with swivel axle which is deflected from vertical in tanker CL and propeller with thrust vector axis also deflected from normal towards swivel axle of main propulsive plant. During navigation in ice-covered area, tanker moves with its aft extremity forward; in this case, thrust vector of propeller is directed at angle relative to waterplane contour upward in parallel relative to inclination of lower section of tanker bottom surface at area where propulsive plant is installed. During navigation in open water area, tanker runs with its fore extremity forward and propeller thrust vector is directed in parallel with waterplane contour.
EFFECT: enhanced operational and economical efficiency.
25 cl, 7 dwg
FIELD: the invention refers to shipbuilding.
SUBSTANCE: the ship's propulsor-rudder complex has a tube firmly connected with the hull of the ship and also fixed in the tube on radial and axial bearings a rotary propulsive block with a capsule in the upper part and a propulsor in the lower part. The radial bearings are located along the height of the tube and the axial bearing is installed on the upper end of the tube. The rotary ring of the axial bearing is firmly connected with the capsule with the aid of strengthening parts and fulfilled with possibility of application to the ring of rotation force from the mechanism for turning the block.
EFFECT: such fulfillment of the complex allows to simplify its construction and increase reliability of work.
1 cl, 3 dwg
FIELD: ferries for rivers of limited navigation.
SUBSTANCE: proposed ferry is provided with pontoons which are spaced apart in width and are made from different materials; cargo and passenger deck is secured on pontoons at two levels. Ferry is also provided with propulsion plant. Upper surface of cargo deck rising above water during operation is located in center plane of cylindrical pontoons; lower part of cargo deck which possesses positive buoyancy is immersed in water. Middle cylindrical part of each pontoon is made from non-metallic materials and is connected with metal end units by means of flanged joint located inside pontoon. Propulsion plant consists of two portable units mounted turnably on cargo deck for control of heading; these units are spaced apart along longitudinal axis of symmetry on edges of cargo deck.
EFFECT: increased capacity of ferry at shallow draft.
4 cl, 9 dwg
FIELD: shipbuilding; building of submersible vehicles for study of sea depth.
SUBSTANCE: proposed submersible vehicle has hull and aft propulsion plant which includes two reversible cruise propulsors mounted in horizontal plane at angle to submersible vehicle axis on both sides from axis. Propulsion plant of submersible vehicle is additionally provided with rudder stock mounted in horizontal plane perpendicularly to longitudinal axis of submersible vehicle; rudder stock is provided with reversible drive for performing reciprocating motion relative to longitudinal axis. Reversible cruise propulsors are immovably mounted on rudder stock. Proposed submersible vehicle possesses high maneuverability in vertical plane (in depth) over entire range of working speeds which is necessary for passing round obstacles in conducting TV survey near water area bottom.
EFFECT: enhanced efficiency of control of submersible vehicle.
SUBSTANCE: propeller screw assembly comprises two propeller screws running in opposite directions. One propeller screw features smaller diameter but runs at higher angular velocity and has larger number of blades.
EFFECT: higher efficiency, lower noise.
FIELD: water transport facilities.
SUBSTANCE: proposed sea-going ice-breaking transport vessel has hull with keel, forecastle with deck house, fore pointed extremity, aft convex cochleariform lines, aft deck and propulsion-and-steering gears. Hull is additionally provided with flat bulb considerably projecting beyond fore perpendicular. Fore lines are made with U-shaped frames over entire height of side including forecastle superstructure with streamlined deck house; keel is rising in sternpost area; when it is stowed, its lower aft wedge-shaped edge projects beyond sternpost line. Aft cochleariform lines form section of deck which is oval in plan with transom inclined at angle of 45 deg. In underwater portion, lines smoothly change into side bulges-sponsons provided with passageways with longitudinal slots in their bottom part for motion of propulsion-and-steering gears over them. Side bulges-sponsons terminate in falling-out side on external side and falling-home side in their fore part so that line of maximum breadths in this area directed upward and sternward should cross the waterline at angle of 3-6 deg. Extreme breadth of hull over bulges-sponsons in the waterline area exceeds midship breadth. Bottom part of passageway has horizontal or slightly deadrise surface in cross-sections which passes to stern at angle of 1-3 deg. relative to waterline and extends to deck at angle of 45 deg. On both sides of its oval section made in form of shoulder perpendicular to hull CL. Propulsion-and-steering gear includes two all-moving struts with nacelles located in aft section of ship, motors in nacelles for rotating the propellers and load-bearing service lines running to struts from power module of vessel. Struts with nacelles are located on both parts of stern in bulges-sponsons. Each strut with nacelle has streamlined guide stud in form of spherical segment with base directed upward which is equipped with circular thrust sliding bearing over its perimeter; each strut has vertical shaft which is coaxial with segment and is rotated by motor in radial-thrust bearing of carriage located in passageway of bulge-sponson and driven by means of load-bearing service lines on four bevel gear wheels connected in pairs by means of transversal hydraulic cylinders of carriage and driven by hydraulic motors built in them; hydraulic motors are thrown into engagement with inclined toothed racks laid on either side from slot in bottom part of passageway. Width of this slot is equal to diameter of vertical shaft.
EFFECT: enhanced ice passability of vessel.
3 cl, 7 dwg