Rotary vane water jet
(57) Abstract:The invention relates to the field of shipbuilding, in particular for propulsion underwater and surface vessels. Rotary vane water jet contains vodoprovodny channel having the form of flat gap, a cylindrical recess in one side vodoprovodnogo channel, a rotor mounted in the cylindrical recess and photoproton channel, and at least one plate that is installed in the rotor. The rotor plate is installed overlapping vodoprovodny channel. The rotor is installed with the minimum technological gap to the wall vodoprovodnogo channel, opposite the cylindrical recess. The rotor is made of a longitudinal slot. Plate mounted for movement in the slots of the rotor. Swept surface formed by the longitudinal edges of the plate when the rotor has such a geometry that the length of the chord passing through the axis of rotation of the rotor equal to the width of the plate. Swept surface equidistant the cylindrical wall niches and to have minimal technological gap. Reduced energy consumption by creating a driving force. 2 Il. The invention relates to the field of shipbuilding, and more particularly to the far East the surrounding devices, help reduce energy costs while creating a driving force to the vehicle.Known rotary vane water jet (see U.S. patent N 4030442, published in 1977), containing vodoprovodny channel having the form of flat gap, a cylindrical recess in one side vodoprovodnogo channel, a rotor mounted in the cylindrical recess and photoproton channel, and at least one plate mounted in the rotor, the rotor plate mounted overlying vodoprovodny channel. This unit is adopted as a prototype.As follows from the description of the invention the prior art, when the rotor plate is held in photoprotons channel moves the water, whereby the water is sucked through the inlet channel and is forced through the hole, creating a driving force on the vehicle. In the prototype flow in the channel is created at the moment of passing the plate in vodoprochnoi part of the channel. At the same time while passing the plate in a cylindrical recess of work to create flow in the channel are not made, although it takes power to overcome the resistance forces of interaction of the plate with water in cylindrically on the vehicle by creating a thread in photoprotons channel through the plate, interacting with water in a cylindrical recess during rotation of the rotor.The goal is achieved in that the rotary vane jet-propulsion engine containing vodoprovodny channel having the form of flat gap, a cylindrical recess in one side vodoprovodnogo channel, a rotor mounted in the cylindrical recess and photoproton channel, and at least one plate mounted in the rotor, the rotor plate mounted overlying vodoprovodny channel, according to the proposed technical solution the rotor is installed with the minimum technological gap to the wall vodoprovodnogo channel, opposite the cylindrical recess in the rotor is made of a longitudinal slot, and a plate mounted for movement in the slots of the rotor, and the swept surface, formed by the longitudinal edges of the plate when the rotor has such a geometry that the length of its chord passing through the axis of rotation of the rotor equal to the width of the plate, and she swept surface equidistant the cylindrical wall niches and to have minimal technological gap.The invention is illustrated by drawings, where:
Fig. 1 is a longitudinal section of the rotary vane vodopia the movement of the plate.Rotary vane water jet contains vodoprovodny channel 1, which has the form of a flat slit (Fig. 1). In one of the walls of the channel 1 is cylindrical niche 2. In channel 1 and the recess 2 has a rotor 3 of circular cross section. The rotor 3 is installed with the minimum technological gappto the channel wall 1 opposite to the recess 2. The rotor 3 is made of a longitudinal slot 4. In slot 4 set plate 5 can move in the slots 4. The rotor 3 with the plate 5 are overlapped vodoprovodny channel 1. When the rotor 3 of the longitudinal edges of the plate 5 form a swept surface 6 (dashed line in Fig. 1). The length of the chord swept surface 6, passing through the axis of rotation of the rotor 3, the width of the plate 5. Swept surface 6 equidistant wall niches 2 and has the minimum technological gap p.
Schematic diagram of the device, providing the movement of the longitudinal edges of the plate 5 along the trajectory swept surface 6 shown in Fig. 2. Plate 5 at each end rigidly attached to the rod 7. The rod 7 has two wheel 8, which have the ability to our teams on the rim 9. Rim 9 equidistance swept surface 6.Arrows U p the th n - the direction of movement of the plate 5 with the rod 7 in the slot 4 when the rotor 3.Rotary vane water jet works in the following way. To create a translational motion of the vehicle drive (drawings not shown) rotates the rotor 3 in the direction of the arrow (Fig. 1). When the rotor 3, the plate 5 is rotated together with the rotor 3, and is moved in the slot 4 in the direction n. The longitudinal edges of the plate 5, moving form a swept surface 6. Moreover, when the rotor 3 cyclically one part of the plate 5 extends from the rotor 3 in the cylindrical recess 2, while its other part at the wall vodoprovodnogo channel 1, the opposite recess 2, is removed in the slot 4.Schematic diagram of the operation of the device, providing the movement of the longitudinal edges of the plate 5 on the swept surface 6 during rotation of the rotor 3 shown in Fig. 2. This is achieved by a rigid connection plate 5 at each end with the rods 7, each of which by means of two wheels 8 rolls on the rim 9, the equidistant path swept surface 6.Serving plate 5 of the rotor 3 in the cylindrical recess 2 in its movement interacts with the - otrejenie, creating a pressure drop. Thus, water is sucked through the inlet channel 1 and is pumped through the outlet channel 1. Formed thread in photoprotons channel 1, shown by arrows U in Fig. 1, implements the driving force on the vehicle.You must ensure that when the rotor 3 both longitudinal edges of the plate 5 would be moved by one and the same trajectory swept surface 6. Therefore, the length of the chord swept surface 6, passing through the axis of rotation of the rotor 3 will be equal to the width of the plate 5. And for effective pressure difference, it is necessary that the trajectory swept surface 6 and the cylindrical wall niches 2 would be equidistantly and would have minimal technological gapp. Minimum technological gappbetween the longitudinal edges of the plate 5, which is moving on the trajectory swept surface 6, and a cylindrical wall niches 2 will minimize losses to create a pressure drop in the channel 1 from the flowing water in the gappbetween the longitudinal edges of the plate 5 and the wall 2 niches that will allow you to create a driving force on the vehicle with minimum energy consumption.In the proposed rotary vane water jet due to the effective pressure difference in photoprotons channel 1 will allow you to receive driving force on the vehicle with minimum energy consumption the channel, having the form of flat gap, a cylindrical recess in one side vodoprovodnogo channel, a rotor mounted in the cylindrical recess and photoproton channel, and at least one plate mounted in the rotor, the rotor plate mounted overlying vodoprovodny channel, characterized in that the rotor is installed with the minimum technological gap to the wall vodoprovodnogo channel, opposite the cylindrical recess in the rotor is made of a longitudinal slot, and a plate mounted for movement in the slots of the rotor, and swept the surface formed by the longitudinal edges of the plate when the rotor has such a geometry that the length of its chord, passing through the axis of rotation of the rotor equal to the width of the plate, and she swept surface equidistant the cylindrical wall niches and to have minimal technological gap.
FIELD: shipbuilding; designing transom of river ship with reversible steering box with steering gear of water-jet engine inside.
SUBSTANCE: proposed reversible steering gear has delivery branch pipe, water passages, deflectors, rudder stocks located in reversible steering box which is part of transom bulkhead. Astern running water passages are communicated with reversible steering box; they are formed by flat sheets and are rectangular in shape. One wall of water conduit is formed by vertical wall and opposite wall is formed by transom bulkhead. Reversible steering box has balancing dampers and semi-balancing deflectors.
EFFECT: ease of assembly; facilitated procedure of assembly; enhanced maneuverability of ship.
3 cl, 3 dwg
FIELD: shipbuilding; designing water-jet propellers with reversible steering complexes.
SUBSTANCE: proposed complex includes water conduit, water intake, impeller with fairing of hub mounted on shaft, nozzle with circular inlet section, straightening unit including hydrodynamic streamlined profiled stanchions used for securing the hub fairing to nozzle and reversible steering gear consisting of swivel deflector located behind nozzle; lower portion of water intake is made in form of semi-circular profiled attachment. Cross sections of nozzle have form of circle segments after its inlet circular section at each section along axis downward of flow. Longitudinal section of walls of semi-circular part of water intake and lower parts of nozzle which is extension of water intake have hydrodynamically streamlined shape in form of wing profile whose rectilinear side is directed inside water conduit. Straightening unit is formed by walls of propeller nozzle, said fairing and profiled stanchions. Reversible steering gear is equipped with bounding plate located horizontally immediately after nozzle exit section at level of its upper wall. Free edges of said plate adjoin inner surface of swivel deflector. Reversible steering gear is provided with at least two rudders provided with drives and located vertically on either side within width of nozzle outlet section; rudders are located under bounding plate on which their stocks are installed.
EFFECT: reduction of mass and overall dimensions; reduced amount of water in propulsor; extended field of application.
FIELD: water-jet propellers.
SUBSTANCE: proposed water-jet propeller includes water duct, impeller mounted on propeller shaft and enclosed in shell; hub of this impeller is made in form of body of revolution at lesser diameter at impeller inlet as compared with diameter at impeller outlet; impeller blades have curvilinear profile in cylindrical sections. Diameters of hub and water duct at inlet and outlet sections of blade system are selected from the following condition: where Fin and Fout are areas of hydraulic section of flow part bounded by hub and water duct walls at inlet and outlet of blade system; αin.tang. and αout.tang. are angles of inclination to plane of impeller disk which are tangential to center line of profile of blade cylindrical section passed through leading and trailing edges of blade. Such construction of propeller excludes abrupt reduction of thrust at development of cavitation on impeller blades and ensures stable operation at entrained air in hydraulic section of impeller.
EFFECT: enhanced efficiency.
FIELD: the invention refers to shipbuilding and applies to construction of water-jet propellers of river boats exploited in conditions of shallow-water rivers and basins with a clogged fairway.
SUBSTANCE: the water-jet propeller has a water canal with a receiving tunnel, a rotor placed in a body and connected with a propeller shaft aligning an apparatus installed in a nozzle and a shaft bearing installed in the aligning apparatus behind the rotor. In the body of the rotor there is behind the rotor one hatch with a cover covering the whole plate of the rotor for assembly and disassembly of the rotor afloat, inspection and cleaning the grate of the water inlet of the tunnel. At that the fore flange of the rotor's body is fulfilled tapered for providing possibility for recovery of that body for its replacement and repair. In the water canal before the body of the rotor a refrigerator of the type " liquid-liquid" is installed. It is designed for cooling an engine putting the rotor into rotation. The shaft bearing may be fulfilled rubber-metal.
EFFECT: such fulfillment of the propeller provides simplicity of manufacturing technology, exploitation and maintenance and also increases effectiveness of its work, decreases labor consumption at carrying prophylactic and repair works, improves exploitation characteristics and increases reliability of work.
1 cl, 1 dwg
FIELD: mechanical engineering.
SUBSTANCE: invention can be used ion designing of hydraulic machines for delivery of liquids to consumers, in form of hydraulic motor, hydraulic propulsor and also as turbine and active emulgator. Proposed rotary hydraulic machine has housing with axial inlet and peripheral outlet branch pipes and rotor in form of solid of revolution with hydraulic channels in form of multistart screw spirals installed on shaft. Rotor is made in form of hemisphere or truncated cone and it contains intake chamber in narrow part of rotor from which hydraulic channels are laid inside rotor volume. Outputs of hydraulic channels are located on periphery in wide part of rotor or on its end face. Hydraulic channels are made with pitch from 0.5 to 1.0 of rotor height along its axis, and intake chamber in made on form of truncated cone.
EFFECT: enlarged sphere of application, reduced losses, provision of operation without cavitation.
2 cl, 1 dwg
FIELD: engines and pumps.
SUBSTANCE: 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.
EFFECT: downsizing of a device while maintaining its hydrodynamic characteristics.
5 cl, 4 dwg