CN1303802A

CN1303802A - Redderless point jet ship

Info

Publication number: CN1303802A
Application number: CN 00101519
Authority: CN
Inventors: 潘成旭
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-01-08
Filing date: 2000-01-08
Publication date: 2001-07-18

Abstract

A water jet boat is characterized by that the head portion of body is made into the form os arrow, its front portion is heavy and rear portion is light in weight, its center of gravity is positioned on the barycentric line vertically extended upward from boat cone, its lower portion is made into the form of inverted triangle, two sides of its rear portion are rear fins, and the interior of boat body is equipped with a "S" type diversion pipe whose opening is positioned at boat cone portion, on the water jet pipe connected by pipe tee, a paired screw propeller is mounted, and the tail portion of said water jet pipe is connected by three-way valve, and outward-bent into curved steering pipe whose included angle is beta, and the upward rake angle is alpha. Besides, the said water jet boad also contains engine for providing power and water tank. It possesses the advantages of novel and reasonable dosign, simple structure, low cost, small boat resistance, flexible steering, and high speed.

Description

Redderless point jet ship

The present invention relates to Redderless point jet ship.

Boats and ships advance in water, must possess propulsive mechanism.The prior art steamer adopts some thrust of afterbody, and directivity is not strong, in case will produce the nose phenomenon at a high speed, excessive with the area of contact of water in addition, under cliding friction, water is excessive to the resistance of hull bottom." rudderless vessel is with hanging oar " of application number 92218990.0 is to utilize the driving power of mechanical drive as propeller, a secondary worm and gear that interrelates with mechanical drive and bearing circle are formed the course control mechanism, and the bearing circle interlock by sprocket wheel chain and worm screw change screw propeller push away the water direction." marine propuision system and the boats and ships thereof " of another kind of application number 98110697.8 are by horizontal internal combustion engine and push away the propulsion system that water piston formula propelling unit combines and realize that boats and ships advance, and above-mentioned two kinds of complex structures, cost height and ship's speed are subjected to the hull shape restriction and can't raise speed.

The objective of the invention is to overcome the defective of prior art and provide a kind of simple in structure, cost is low, the ship resistance is little, turn to flexibly, Redderless point jet ship that ship's speed is high.

According to above-mentioned purpose, design of the present invention is to improve the hull shape structure, adopt the waterjet propulsion mode, its embodiment is: be provided with in hull by rotating screw propeller of engine drive and not case of cooling, it is characterized in that described hull head is flechette-type, light configuration before and after the weight, center of gravity is on the center of gravity line that ship awl P point extends vertically upward, the hull bottom is a del, and respectively there is an empennage both sides, rear portion; Be provided with " S " type aqueduct that connects ship awl P point and fix in the hull with sidewall, the water jet standpipe that aqueduct is connected bilateral symmetry extension rearward and fixed along the two side by threeway, symmetrical double-type screw propeller is set on the water jet standpipe of both sides, screw propeller provides rotary motive power by engine-driven hydraulic pressure high pressure pump, oil return enters fuel tank, the water jet standpipe afterbody is by the three arc steering tubes that can gate valves to connect outwardly-bent one-tenth angle be β, and the upper uplifting angle of steering tube is α and fixes with empennage.

The present invention make a big improvement to the hull shape structure, has adopted many oars of pipe scheme again, and thrust direction is concentrated, and it is parallel with the boats and ships longitudinal axis, no matter add energetically, make the thrust aspect consistent all the time with direct of travel, can not produce the nose phenomenon, so can run at high speed, the design's advantage is rationally novel in design, and simple in structure, the ship resistance is little, turn to flexibly the ship's speed height.

Description of drawings

Fig. 1 is a construction profile scheme drawing of the present invention;

Fig. 2 is the birds-eye view of Fig. 1.

To be described as follows again by the embodiment of above-mentioned accompanying drawing below the present invention.

Referring to Fig. 1-2, the hull of Redderless point jet ship (1) head is flechette-type, the light configuration in heavy back before the weight, and center of gravity is on the center of gravity line (12) that ship awl P point extends vertically upward, and the hull bottom is a del, and respectively there is an empennage (13) both sides, rear portion.The empennage effect is to avoid hull to run at high speed in the process and touches the problem of the balance and stability difference that water causes because of ship awl single-point, because empennage is parallel with the hull longitudinal axis, run at high speed and lift or press down the reaction force acts that all can be subjected to the direct of travel overdraught on the afterbody, make the hull longitudinal axis parallel all the time with horizontal surface; Another effect is to increase the afterbody windage, makes under the light situation in the preceding heavy back of hull to keep arrow to advance state.

The hull front middle part is provided with driving engine (4), by engine-driven hydraulic pressure high pressure pump (5), both are connected by transmission shaft, the hydraulic pressure high pressure pump is imported each propeller with the pressure oil in the fuel tank (11) by the input high pressure fuel pipe (14) that bilateral symmetry is provided with, and oil return enters fuel tank by output low pressure pipe (15).Be provided with power cut valve (7) between hydraulic pressure high pressure pump and the fuel tank, so that cut off hydraulic oil output when engine starting, guaranteeing brings to does not shut down.Provide the water tank (2) of cooling water expansion tank to be located at the place ahead to driving engine, play the counterweight effect simultaneously.

Be provided with in the hull and connect ship awl P point and be " S " type aqueduct (3), be fixed on the sidewall with the two S templates in front and back with sidewall is fixed.Aqueduct is connected the water jet standpipe (6) of bilateral symmetry extension rearward by the threeway (not shown), water jet standpipe is fixed on the two side, be fixedly linked by bolt and clip with the shipboard welding, symmetrical double-type propeller (8) is set on the water jet standpipe of both sides, propeller provides rotary motive power by engine-driven hydraulic pressure high pressure pump, propeller is to be provided with 2-3 to being advisable, and present embodiment is provided with 3 pairs, to improve the efficient of driving engine as far as possible.It is 50 °-70 ° arc steering tube (9) that the afterbody of water jet standpipe connects outwardly-bent one-tenth β by treble ported slide valve (10), and the upper uplifting angle α of steering tube is 10 °-30 ° and fixes with empennage.Aqueduct, water jet standpipe, steering tube add that specific ship shape structure formed the propulsive mechanism of hull.It is to make ship can strengthen flooding quantity when running at high speed that aqueduct adopts the purpose of " S " type, also in order to make water jet standpipe lengthening as far as possible, so that more propeller is set, thereby further improves the power of driving engine on water jet standpipe.

Ship in motion, by ship awl P point opening water is sucked, through " S " type aqueduct person who lives in exile top, through a minute current direction both sides water jet standpipe, current are quickened and spray at a high speed by propeller from afterbody, produces promotion hull power to overtake, keeping hull constantly advances, and floating line constantly drops to M-M, makes the area of contact of hull bottom and water be reduced to minimum, and the resistance of water trends towards zero.Aqueduct and water jet standpipe join in the H point, and the water spray arm of force of ship is HP, i.e. hull progradation power is exerted oneself forward, so hull can nose when high speed in ship awl upper end.Ship is when berthing, and the bottom del is owing to precedingly gently be embedded in fully in the water after heavy, and floating line upwards moves to N-N.

The two sides of tail steering tube is controlled by treble ported slide valve, and the treble ported slide valve pull-up is opened, and water directly from the ejection of water jet standpipe rear portion, is pushed ahead hull; Treble ported slide valve puts down closes, and water sprays from steering tube, and hull can turn to, and puts down as the right side, and water is from the ejection of right hand steering pipe, and hull can be turned right; Otherwise put down in the left side, and water is from the ejection of left side steering tube, and hull can turn left; When the both sides gate valve puts down when closing simultaneously, hull is opened backward.

Claims

1, a kind of Redderless point jet ship, in hull (1), be provided with propeller (8) and cooling water case (2) by driving engine (4) driving rotational, it is characterized in that described hull head is flechette-type, the light configuration in heavy back before the weight, center of gravity is on the center of gravity line (12) that ship awl P point extends vertically upward, the hull bottom is a del, and respectively there is an empennage (13) both sides, rear portion; Be provided with in the hull and connect ship awl P point and be " S " type water pipe (3) with sidewall is fixed, aqueduct connect by threeway that bilateral symmetry is rearward extended and along the two side fixing spray (no matter 6), symmetrical double-type propeller (8) is set on the water jet standpipe of both sides, propeller provides rotary motive power by engine-driven hydraulic pressure high pressure pump (5), oil return enters fuel tank (11), the water jet standpipe afterbody is by treble ported slide valve (10) the arc steering tube (9) that to connect outwardly-bent one-tenth angle be β, and the upper uplifting angle of steering tube is α and fixes with empennage.

2, the Redderless point jet ship of asking as claim 1 is characterized in that being provided with power cut valve (7) between described hydraulic pressure high pressure pump (5) and the fuel tank (11).

3, Redderless point jet ship as claimed in claim 1 is characterized in that described propeller (8) is to be provided with 2-3 to for good.

4, Redderless point jet ship as claimed in claim 1, the upper uplifting angle α that it is characterized in that the steering tube (9) of institute's art are 10 °-30 °.

5, Redderless point jet ship as claimed in claim 1 is characterized in that described steering tube (9) is that outwardly-bent one-tenth angle β is 50 °-70 ° an arc pipe.