SU1705185A1 - Water-jet propulsion unit - Google Patents

Abstract

FIELD OF THE INVENTION The invention relates to shipbuilding, in particular to designs of jet propulsion units. The purpose of the invention is to increase the efficiency of the engine and simplify its design. The propeller contains a drive having a drive disk 8 whose diameter is equal to the width of channel 1. The disk is placed in the front part of the upper wall of the channel for rotation in the plane of this wall, and to the edge of the disk by means of the upper face of the axis 11 located in the front part of the plate 10 The plate 10 is hingedly attached. In the side walls there are slit holes and rotary shutters 4 and 5 of different shoulders. 2 ill.

Description

FIELD OF THE INVENTION The invention relates to shipbuilding, in particular to designs of jet propulsion units.

The purpose of the invention is to simplify the design and increase the efficiency of the engine.

FIG. 1 shows a jet propulsion unit, top view: FIG. 2 is a section A-A in FIG. one.

The jet propulsion unit comprises a straight channel of 1 rectangular cross section. This channel has a similar opening 2 and is divided by an outlet opening 3. In the side walls of channel 1 there are slotted holes and penetrating flaps 4 and 5, which can turn their rear ends into the inside of duct 1 around OCO 6 and 7. dividing these flaps on a smaller middle and larger back. In front of the upper wall, channel 1, there is a drive disk 8 having an axis of drive 0. This disk has the ability to rotate n the plane of the upper wall of channel 1 and its diameter is equal to the width of the cantilever. To the edge of the disk 8 pivotally krenits profiled plate

10 by means of an axle 11 perpendicular to its upper face located in the front of this plate.

The mover works as follows.

The plate 10 located in the channel 1 is driven by the disk 8. When this disk is joined, the plate 10 moves between the side walls of the channel 1 by the front end, which then describes an elliptical pattern. The front end moves the plate 10 by dividing this plate by axis 11 into smaller front and larger rear parts. Therefore, the amplification created by the rotating disk 8 is transformed into the water in channel 1 with a pressure inversely proportional to the lateral surface area of these parts. It follows that the pressure force of the front end of the asti 10 PL, which occurs when this plate moves in channel 1, causes its movement by the front end, T1 when plate 10 moves to the opposite wall of channel 1, its front

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the end produces a plunger stroke-capture of the flow stream 1 flowing through the inlet 2 of the channel 1. At the same time, there is a dusting of the bottom through the outlet opening 3 with simultaneous suction of the external flow through the entrance opening 2. Having reached the front end of the opposite wall, the plate 10 continues its movement to this side with its rear end. This continues the process of ejecting water through the exit section 3 and removing the external flow B channel 1 through the inlet 2 and the gaps formed at the ends of the turned sash 5 around the axis 7 behind the moving rear part of the plate 10 under the action of the external flow to the large rear part of this sash. Upon further rotation of the disk 8, the plate 10 is fully pressed against the wall. Thereafter, the reverse movement of the plate 10 begins. It is accompanied by a smooth ejection of water through the outlet 3 and the external flow is drawn in through the inlet opening -2. In this case, the overpressure created in the canal. 1 returns the valve 5 to its original position, and the gaps at its ends disappear. When the front end of the plate 10 reaches the opposite wall, the movement of its rear end begins. This continues the process of discharging water through the outlet 3 while simultaneously drawing in the external flow through the inlet 2 and the gap formed at the ends of the turned sash 4 around the axis 6 behind the moving rear part of the plate 10 under the external flow to the large rear part of this sash. Upon further rotation of the disk 8, the plate 10, being pressed fully against the side wall of the channel 1, returns to its original position.

The technical and economic efficiency of the proposed jet propulsion is that the drive plate of this

the mover is able to develop large

momentum, gives the opportunity to refuse

a separate drive for the rear end, and

also make fuller use of the elastic properties of this plate and free the channel from the pushers. The drive of the proposed water jet engine makes it convenient to attach it to the driving engine, for example, to the outboard boat motor.

instead of its propeller.

The inventive vodbmet propulsion unit contains a rectangular rectangular channel, in the walls of which slit openings are made and rotary doors are installed, a profiled plate placed inside this channel and mounted on an axis, as well as an oscillatory movement drive of a profiled plate that differs the fact that, in order to simplify the design and increase the efficiency of the propeller, the oscillatory motion of the profiled plate is made with

a disc whose diameter is equal to the width of the channel placed in the nose of the upper wall of the channel and mounted rotatably in the plane of this wall, and said axis is attached to

the edge of the disk is perpendicular to its surface, while the profiled plate is placed perpendicular to the surface of the driving disk and is connected to the specified axis in its nose.

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Claims (2)

Claim A water-jet propulsion device containing a direct-flow channel of rectangular cross-section, in the walls of which slotted holes are made and pivoting doors are installed, a profiled plate is placed in the external flow through the inlet 2. At the same time, the excess pressure created in the cana. Le 1 returns the leaf 5 to its original position, and the cracks at its ends disappear. After the front end of the plate 10 reaches the opposite wall, the movement of its rear end begins. At the same time, the process of ejection of water 30 through the outlet 3 continues while simultaneously pulling the external flow through the inlet 2 and the resulting gaps at the ends of the turned leaf 4 around the axis 6 behind the moving rear part 35 of the plate 10 under the action of the external flow on the large back part of this leaf. With further rotation of the disk 8, the plate 10, pressing completely against the side wall inside this channel, and mounted on the axis, as well as the drive of the oscillatory movement of the profiled plate, which means that, in order to simplify the design and increase the efficiency of the propulsion, the drive the vibrational movement of the profiled plate is made with a drive disk, the diameter of which is equal to the width of the channel, placed in the bow of the upper wall of the channel and mounted to rotate in the plane of this wall, and the said axis is attached and to the edge of the disk perpendicular to its surface, with the profiled plate placed perpendicular to the surface of the drive disk and connected with the specified axis in its nose. FIG. 2