Water-jet propeller |
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IPC classes for russian patent Water-jet propeller (RU 2455191):
 Method and device to move in gases or fluids / 2453474
Flow is turned on propeller blade periphery to create flow tangential to blade so that rarefaction zone is formed to eject extra flow formed by blade in azimuthal and axial directions therein. Moving airflow is directed onto stationary wings. Flow is turned on periphery of the latter to create tangential airflow with speed exceeding that of approach flow to create rarefaction zone to eject outer airflow therein. Transport facility comprises airframe with top, lateral and bottom surfaces, propellers with vanes and fixed wings. Propellers are arranged atop front surface of apparatus. Set of sections with elements is arranged on vane peripheral surfaces and fixed wing peripheral surfaces. Sections of elements in front edge structure are directed along approach flow while their rear edges are directed flatly along wings. Elements of section structure on blade front edge are oriented fanlike.
 Venturi system with multiple guide nozzles for vessel / 2429160
First and second elements include two or more spacers in the form of ribs that connect circular elements and cover and separate the structural circular element and two or more circular guide nozzles making an integral whole with them. These elements additionally comprise the upper assembly plate and the lower assembly plate, covering and separating the structural circular element and two or more circular guide nozzles and making an integral whole with them. The system of nozzles has a skeg barrier attached with the possibility of disconnection to any available skeg, including a broken skeg, comprising the upper part and the lower part. The lower part is fixed with the possibility of disconnection to the lower assembly plate of both elements. The system of nozzles has one or more rear safety rings, which comprise the upper plate for fixation of the safety ring and the lower plate for fixation of the safety ring. The upper and lower plates for fixation ensure attachment of one or more safety rings with the possibility of disconnection to the system of nozzles.
 Screw with cumulative effect / 2405713
Invention can be used as propulsion units of whatever water transport facility. Proposed screw comprises lines of vanes separated and fixed by shell rings. Said screw represents a cone with its apex being a screw hub. Shell rings and vanes represent concave elements. Concave vanes are directed in lines to the side of rotation. Note here that the number of vane lines, that of vanes in a line and vane angle of attack, angular, liner and radial sizes of the screw and its elements are subject to output power and rpm of the screw. Cumulative screw aerodynamics is identical to its hydrodynamics.
Water transport facility / 2402452
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.
 Propulsor / 2391249
Invention relates to ship building, particularly to ship propulsors. Proposed propulsor comprises cylinder with blades limited by side disks, water intake, water baffle, straightening device, water intake grid. Cylinder is fitted on drive shaft fitted perpendicular to ship motion direction and runs in bearings of stern platform support. Propulsor blades are fitted all along the cylinder parallel to the shaft and bent arc wise opposite the propulsor rotation. Stiffening ribs, attached to blades and cylinder, are arranged on suction side of propeller cylinder blades between and parallel with disks. Straightening device is arranged behind propeller cylinder, consisting of horizontal plates secured to stern platform vertical walls. Water accelerates in direct-flow channel formed by water intake and propeller cylinder arranged so that water intake top plane is located at the level of propeller cylinder lower line.
 Extra drive for ships / 2379212
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.
 Propulsion-steering complex / 2374126
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.
 Marine engine with body, installed under hull / 2372246
Invention relates to ship propulsion system. Ship propulsion system contains at least one body, geared together to bearing post, installed under hull, and marine propeller, located behind body. Additionally marine propeller allows at least two blades and powered into rotation by connected shaft, connected to motor. Additionally to body there are fixed three guide vanes, forming row, perpendicular to longitudinal axis of body. On body it is located nozzle, which at least partially envelopes marine propeller and row of guide blades. Each blade allows extremity with edge, passing close to inner wall of nozzle, so that marine propeller forms rotor of screw pump, and row is located in area, located between central part of bearing post and marine propeller.
 Blade propeller system / 2362706
Said utility invention relates to the ship building industry, in particular to designs of double-stage marine blade propeller systems. A blade propeller system comprising a propeller and a counterpropeller coaxially installed behind it, which has variable pitch blades, a mechanism for the rotation of the latter about the vertical axis, and a counterpropeller hub stopping mechanism. Each of the counterpropeller blades is curvilinear and curved in such a manner that its suction or pressure surface at the blade end portion faces the outer surface of the counterpropeller hub.
 Rotor mast / 2359862
Invention relates to ship rotor masts. The rotor mast has a boss joined to blades which have a profile, formed by intersection of two parabolas, mated in the region of the rear edge with a semicircle, which enters the boss. The front edge is rounded. The end of the blade is bent at an angle β≥30°. In the blade near the boss, there are ventilation openings. Lateral sides of the blades are closed by a ring.
 Inertial engine by bogdanov / 2449170
Inertial engine comprises at least one system with a propeller and a flywheel with a working medium. Around the flywheel there is a turbine, and the flywheel is made as capable to supply working medium to the inner working surface of the turbine. In another version around the flywheel there is a spiral or a ring with a chute on the inner surface facing the axis of the flywheel rotation, and at the outlet from the spiral or ring there is a hole with the possibility of discharge of the accelerated working medium from the hole.
 Water-jet propeller / 2427498
Invention relates to ship building. Proposed propelled comprises vane wheel rotor 2 with vaned hub 3 fitted on the shaft in water duct 1. Cavity 5 is made in rotor vane body peripheral section to extend over vane width. Said cavity communicates with incident flow via inlet channels 7 with water intake holes 8 made in vane body. Said holes are made in vane pressure surface 6. Said cavity has gap nozzle 9 extending over vane width and arranged on vane peripheral section to be oriented towards said pressure surface. Note here that said water intake channels are arranged over vane width at vane relative radius equal to 0.55-0.8 of propeller axle. Inlet sections of vane water intake holes are oriented along propeller rotation.
 High-speed gliding boat / 2387569
Boat with air cavity in its bottom and half-tunnel board channels-waterducts has main marine engines, propeller shafts, brackets, propeller screws, ring packings of screws and rudders. Two main engines with propeller shafts are installed on boat by boards at angles to in vertical and horizontal planes. Channel-waterduct is located in quarter at each board and has at its top the shape close to circumference with radius R=0.5D+(0.02÷0.03) m, where D - diametre of propeller screw, and cambered walls limiting channel-waterduct in vertical plane. Upper part of channel-waterduct from point on transom with height from the main plane H=D+(0.1÷0.2) m to point on the main plane at distance L=(2.5÷3.5)D m from transom passes into hull skeg and changes by parabolic relation, in quarter near transom is separated by projection formed by inner board wall of channel-waterduct and board plane which projection is limited from below by inclined section located at an angle of 5-10° to the main plane. Ring packing is located in the zone of propeller screw and rigidly connected with hull. Axis of this packing lays in the plane parallel to diametrical plane of hull. Propeller shaft goes at angles to the main plane and diametrical plane with such location of propeller screw on it that in the top point screw blades are in the plane of rear edge of ring packing.
 Ship propulsor / 2381953
Proposed propulsor represents a blower consisting of hollow fair with inlet and outlet holes arranged in rotor chambers, and drive. Propulsor comprises partition dividing fair chamber into two parts, each allowing rotors to run at equal/different rpm. Flat/wedge-like partition supports fixed elements to accommodate ends of aforesaid rotors.
 Method to convert centrifugal force into driving force / 2381952
Proposed method comprises feeding fluid into dynamically and statically balanced hollow solid body, placed in atmosphere (air) with density considerably smaller than that of water, at the point of rotational axis, or at a distance from it. Said fluid is revolved together with said body to move, by centrifugal force, along preset trajectory limited by physical obstacles, from rotational axis towards hollow solid body outer side. Fluid pour-out direction is also limited by physical obstacles and directed towards rotational axis of working reactive body.
 Air cavity ship with water jet propeller / 2381131
Proposed ship comprises a hull with bottom air cavity, power plant and propulsion plant consisting of two waterjets furnished with steering and reversing mechanisms. To allow operation at full speed on shallow water areas, each waterjet incorporates water duct with enlarged water intake consisting of two intake sections, one being mounted on cavity wider skeg and another being fitted on ship side. To reduce hull sticking to basin bottom, the side intake section should exceed two to three times that of the bottom. To prevent ingress of outside air into waterjet, top edge of air intake side intake section can be arranged below water line by some 250 to 300 mm at cruising speed.
 Two-mode water intake of hydrojet propeller of vessel / 2360832
Two-mode water intake comprises flow pipeline, cylinders with horizontal axis of rotation, which is perpendicular to diametrical plane of vessel. Cylinders are pairwise cinematically connected with closed flexible tape that envelopes then with artificial roughness. Cylinders are installed along length (height) of pipeline in rectangular niches of fore body and stern parts of internal cladding of flow pipeline. Surface of flexible belts is located in single plane with internal cladding of pipeline. Cylinders have possibility of reverse motion.
 Hydrojet propeller / 2357891
Invention is related to facilities for creation of traction for ship movement, in particular to hydrojet marine propeller. Hydrojet propeller with overhung impeller is arranged in the form of demountable structurally completed module, such as solid of revolution. Module consists of leak-tight vessel, for instance pipe, with driving shaft with bearings installed in it. At that vessel crosses wall of water-diversion channel with clearance fit, and with its other end it is connected via pylons with impeller shell coupled with back cut of water-diversion channel with clearance fit. Nozzle is coupled with back cut of impeller shell with clearance fit and is fixed with locks.
 Water-jet propeller reverse-and-rudder control device / 2330785
Water-jet propeller reverse-and-rudder control device incorporates a jet guide box arranged behind the nozzle and furnished with inlet and outlet branch pipes, side reverse ducts and rudder mechanism mounted nearby the outlet branch pipe. The rudder mechanism is made up of several parallel rotary blades, their total area being equal to that of the outlet branch pipe. Every blade is provided with a rotation drive dependent or partially dependent upon other blades.
 Reversible steering device of hydrojet engine / 2324621
Pivotal nozzle is made with two running channels located one above another, the said channels are formed with nozzle contour walls from exterior side and from interior side they are formed by walls of a fixed cone of a propeller hub and its guiding poles, the form of which is being transformed from one cross section to another along the nozzle axis into a predominantly horizontally elongated form of channels at the output cross section. Dimensions of channels of the said cross section are determined by the condition according to which the sum of areas of output cross sections of both channels must be less than the area of the open flow cross section of a circular channel of a water passage directly behind the propeller of the nozzle. There are cavities in the cone and poles of the propeller which are opened from the side of the output cross section of the nozzle. A reversible steering device is equipped with the second shutter of the working stroke, at that both shutters are assembled on horizontal axes located in the nozzle case and are able to rotate around axes to shut down the output cross sections of the open flow channels of the nozzle and to direct their output jets into the cavities of the propeller cone and its poles; they are complemented with at least one channel of a reverse movement designed to alter a direction of surge of nozzle jets while reversing and located along side poles of the reversible nozzle. Input zones of the said channels are communicated with the cavities of the propeller and poles through apertures, formed in the exterior side walls of the nozzle, while their output zones communicate with environment and are oriented predominantly against an outer flow.
 Hydro-jet / 2452654
Hydro-jet comprises combustion chamber, expansion (hydraulic) chamber, hydraulic valve and nozzle assembly. Expansion chamber is arranged below water level. Combustion and expansion chambers are communicated via one or several valves.
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FIELD: transport. SUBSTANCE: invention relates to railroad transport. Proposed propulsor consists of profiled water conduit 2 and propeller 3. Propeller is arranged at conduit inlet. Conduits integrity is broken by water intake circuit 4 at definite distance behind propeller. EFFECT: increased propulsion, higher efficiency and expanded applications. 1 dwg
Known water jet, whose driving force is created squeezing from it a stream of water. The propulsor is a shaped water-piping pipe in which the water flow is accelerated propeller screw, set in the input part and providing a directional emission of jets (see, for example, Polytechnical dictionary. - M.: Publishing house "Soviet encyclopedia", 1977, s/. The disadvantages of jet propulsion are of limited value in the driving force, explain the real dimension and dynamics of the concept of cannon, and, consequently, limited in scope. This shallow vessels or thrusters to improve powertrust vessels. Poor and limited efficiency of propulsion for the same reason. The objective of the proposed technical solution is the significant reduction of these shortcomings. The solution of this problem is achieved in that the water jet, representing shaped water-piping pipe containing the input part of the propeller equipped with a closed water circuit located after the propeller. The novelty of the invention is to increase the driving force of the jet pump by increasing the mass of the propelling jet and a corresponding decrease its acceleration on the ode, i.e. to increase the massiveness at a constant expenditure of energy. According to the patent and scientific and technical information of the claimed design is not detected, which allows to judge about the inventive step of the proposed solution. Industrial applicability is due to expanding the use of jet propulsion. On the drawing /Figure 1/ presents a schematic diagram of jet propulsion, which is arranged as follows. In hull boats 1 fixed shaped water-piping pipe 2, is oriented with its longitudinal axis along the longitudinal axis of the craft. At the beginning of the pipe 2 is blade mechanism - propeller 3 to eject the output received in the pipe 2 water. At a certain distance along the longitudinal axis of the screw 3 the integrity of the pipe 2 is interrupted by a closed water circuit 4 for collection of additional portions of water. Further development of the circuit 4 again is a pipe 5 for transporting the total mass of water until its exit from the nozzle 6. Does water jet as follows. During the rotation of the propeller 3 accelerated in its motion, the water reaches the intake path 4 and the swelling due to an incident in the path of water flow from the outside and its suction, increases its massiveness, as under the previous energy mind is neetsa acceleration increased mass of water. This effect of repulsion /driving force from the more massive of the environment is higher than in the case of the prototype. Thus, the question of increasing the driving force of the economy and the scope of application of the water jet-propulsion. For the implementation of the invention will require turning, milling and grinding machines with the goal of cutting in the prototype intake path. Water jet, representing shaped water-piping pipe containing the input part of the propeller, characterized in that at a certain distance after the propeller integrity of the pipe is interrupted water supply circuit.
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