CN1068300A

CN1068300A - Have pressurization air-sprung ship

Info

Publication number: CN1068300A
Application number: CN92105569A
Authority: CN
Inventors: 唐纳德E·伯格
Original assignee: Individual
Current assignee: Individual
Priority date: 1991-07-10
Filing date: 1992-07-10
Publication date: 1993-01-27
Anticipated expiration: 2007-07-10
Also published as: TW221399B; JPH06508804A; AU2303092A; FI940076A0; MY107994A; FI940076A; EP0592592A1; SG46712A1; AU654040B2; NO940067D0; IL102341A; MX9204028A; NZ243473A; CN1034115C; WO1993001082A1; NO940067L; BR9206261A; EP0592592A4

Abstract

A kind of seagoing vessel that improves performance comprises the compression support air cushion that is arranged in the multihull (normally twin boat type broadside boat body), and this pressurization air cushion is supporting most of weight of ship under sail.The present invention adopts thin and long sharp fore twin boat type broadside boat body, it and hull connection structure mechanical connection.It is wideer, dark that topside hull air-sprung lateral wall cans be compared to madial wall most.Its air cushion sidewall is in advance with than flat surface arbitrarily at angle, carries out the transition to crooked shape to stern then.Central fore is set, to improve the stability of in billow, travelling between the topside hull.Fixing and/or movable sealing member is arranged in the dimple of topside hull.

Description

Have pressurization air-sprung ship

The present invention relates to marine vessel,, make the running efficiency of ship higher by using the compression support air cushion that in the dimple of hull bottom surface, is provided with.

The present invention is the further perfect of some inventions that the applicant (is called " air regulation hull ") in early days in this respect usually.All these inventions all require pressurized air is introduced in the dimple of hull bottom surface, to increase route speed, improve carrying capacity, and improve stability.This improvement is because the air cushion that pressurizes is as a rule supporting the weight of about 80%～90% ship.The efficient that has improved in running at high speed mainly is owing to reduced the area of wetted surface resistance, compares with the hull of common form, can reduce several magnitude usually.

The early stage patent of the present invention and applicant is compared, and the viewpoint of a plurality of from using, almost parallel and hull wide freight space has tangible progress.This effect is exactly: with common air cushion supporting navigation device for example water activity ship (SES) compare, changed in many cases and the stability of having improved ship and resistance to motion and various performance characteristic.The water activity ship (SES) of prior art has thin parallel topside hull, and this hull laterally connects from the beginning to the end with full span flexible seals, and the space of Xing Chenging charges into pressurized air thus, to produce big hoisting force.Like this, can see that this ship has the quite wide rectangle coverage of a kind of single-piece on the water surface.

United States Navy in investment research at the beginning of the eighties a kind of ship that adopts twin boat type broadside boat body, each topside hull is a common SES, as previously mentioned, common SES is a kind of compressed-air actuated air cushion vehicle that adds, and its front and back (fore, stern) is equipped with full span flexible seals between parallel topside hull.In the conception of naval, double-type common SES topside hull is separated and is connected by cross-over connection deck or immersion base arrangement.Their topside hull is not only parallel, and each topside hull all has laminal and extends to the side at immersion base plate place fully, the immersion base plate reality that stretches out has formed the upper surface of gas-pressurized dimple, this point can be found out from Fig. 2 of people's such as F.W.Wilson article " evaluation of water activity catamaran-design progress ", " naval engineering teacher magazine " P301 in May nineteen eighty-three～311 that the publication of this piece article is published in American Society Of Naval Engineers.This article has been summarized the catamaran topside hull air-sprung design plan of naval in detail.For simplicity, this paper below will be abbreviated as the design plan of naval the abbreviation of SECAT(" water activity catamaran ").

The notion of SECAT is: the flexible fore sealing member of each topside hull will contact wave, and as long as the height of wave can not touch dimple immersion base plate, they just can waltz through the dimple of topside hull.Although the analysis of SECAT and model investigation are also underway, as if do not remake lasting research for the full-scale ship or the prototype ship of reality.SECAT also requires to tall and thin cantilevered topside ship hull plate with extra structural weight, and it is very poor from the pad performance.It seems that problem recited above adds that in the dimple of each side hull very high and narrow and flexible seals that be difficult to keep in repair causes the surprising increase of area of wetted surface resistance when travelling in great waves, may hamper proceeding of above-mentioned research.Because, to compare with common single cabin SES, the additional up-and-down movement of this flexible seals on the ship inboard of each topside hull can cause the increase of area of wetted surface.

U.S. Patent No. 1,307,135 have adopted two air cushion buoyancy aids, and its buoyancy aid is gas filed by the waste gas of a driving engine.The performance that a kind of device improves hydroairplane is made in mainly being intended that of this patent, and this hydroairplane can be realized water sailing or aerial navigation.The 2nd page of 96～106 row according to this patent specification is described, " and; also can recognize; when hydroairplane aloft flies; between hydrofoil and the bearing pressure corresponding transmitting effect will take place; (bearing pressure is that the exhaust gas pressure source provides), in the case the friction drag that is produced to reduce will be significantly because it is relatively lighter to enter the density of the elastic fluid between hydrofoil and the air pressure ".This point is in U.S. Patent No. 1,307, and 135 Instructions Page 2 22～24 row have further been set forth, and it is said: " on behalf of the wing of supporting device, buoyancy aid represent by 10 just as with pole 9 supporting fuselages 8 ".Described supporting device 10 is actually the wing of aircraft.

U.S. Patent No. 4,393,802 disclose a kind of single hull, and it has a central authorities pressurizations air cushion and dual outer dimple, and this dimple is unlimited at the tail end of magnetic tape trailer portion sealing mechanism not, so that the pressure in the constrained side air cushion.U.S. Patent No. 3,191,572; 3,606,857; With 4,031,841 have proposed the air lubrication multihull of various remodeling.But all these all exist at their tail ends can not the osed top air layer, because they do not have afterbody cushion seal spare.Therefore they can not seal hole or the interior air pressure of dimple under the topside hull.They adopt the air of piston or Air compressor compression to lubricate the bottom of side of a ship hull simply, or adopt a kind of the device to quicken the opening discharge of current from the topside hull bottom rear end of air lubrication.Because they are the mechanism of air-cushion pressure in the topside hull dimple without limits all, so can not support most hull weight with the pressurization air cushion.

The objective of the invention is to develop the advantage of previous " air regulation hull " invention, and further improve the stability and the performance of ship simultaneously.

In order to realize above-mentioned purpose of the present invention, the invention provides a kind of supporting air-sprung ship that is arranged in the twin boat type broadside boat body that has, described twin boat type broadside boat body and hull connection structure mechanical connection, described supporting air cushion is supplied with gas-pressurized by gas compression mechanism, it is characterized in that each twin-hull ship type topside hull has a dimple, this dimple limits the pressurization air cushion at least in part, each described twin-hull ship type topside hull has madial wall and lateral wall, if and on the level immersion plane of described ship, look, in at least one above-mentioned twin boat type broadside boat body, above-mentioned dimple carries out the transition to from the front at it that width strengthens at least a portion length of longitudinal length of stern, when above-mentioned ship when ash breeze travels with the speed more than 25 nautical miles/hour, air cushion is pressurized to the most of weight that is enough to supporting ship.

The topside hull preferably is common ship shape basically, if see that it is actually sharp prow shape on the plane of running through the ash breeze waterline that ship runs at high speed.The topside hull can be symmetry or asymmetric.And the wetted surface of the sidewall of one or two topside hulls can be dispersed, so that air cushion is widened from fore to stern.The wetted surface of the sidewall of a topside hull can be in the past towards outside disperse, and make at least a portion at its rear portion become parallel.The lateral wall wetted surface of topside hull can than the madial wall of this topside hull immersion face width some.And, the side of a ship that the wetted surface of the sidewall of topside hull is preferably more straight, perhaps the front is more smooth, becomes the comparison bending to the back.Moreover, the lower surface of topside hull madial wall, on average, it highly is higher than the lower surface of the external sidewall of this ship board.And the topside hull can stretch out outside the main hull structure forward.Can also use central fore form, in the case, this central fore has increased the stability of forward andor aft, and the area of wetted surface of the base plate that reduces to soak, and is particularly when ship travels in billow, all the more so.It is external that central authorities' fore can stretch out ship board forward.Central authorities' fore can be made difformity, for example, and preferably dark V-arrangement, inverted V-shaped etc.Can also make is vertical step haply, the bath vertically water area of topside hull when travelling in great waves in order to reduce ship.Ambient air charges into downwards in the vertical step.Perpendicular steps can tilt, thus water not only outside the topside hull rushes at, and rush at down, thereby increase lift to the topside hull.The shape of topside hull can make before the perpendicular steps that face width is a little, and the back is narrower, thereby reduces impulsive force that topside hull step is sprayed rearwards.The topside hull can be full duration under the step part that narrows down, thereby forms the full duration air cushion, and forms a full duration lifting surface, still keeps again along the advantage of the tapered ship board body sidewall of vertically disposed ventilation step simultaneously.Can load onto an air turbulence producer in the bottom surface of immersion base plate,, thereby below the immersion base plate, form pneumostatic voltage rise power with the air-flow under the restriction immersion base plate.Can load onto the dynamic seal of fore and/or dimple, they are mobilizable with respect to the topside hull.Movable fore sealing member can combine application with its fwd point fore shape, thereby obtains the fore that cleaves of the simple fixation that cost is low and outward appearance is tempting.Movable fore design of rubber seal comprises a series of sealing members or part, and each sealing member can both be kept afloat, thereby forms the actv. air seal.The fore sealing member is self sealss from the side preferably, and the sealing member of back helps the sealing at they fwd sealing members.Movable fore sealing member preferably has crooked or moves into the tail surface of an angle with the corresponding positions of back face seal, thereby makes the sealing of the good gas-pressurized of formation in the air cushion.Dynamic seal is preferably made with the high material of structural strength as far as possible, because this dynamic seal does not need to make with flexible material.The advantage of the sealing member of voluntary activity is that dynamic seal can be connected on the hull with hinge or other simple mechanisms.The fore sealing member of voluntary activity is preferably made the lower surface of shaping, and inverted V-shaped preferably for example so that good water surface track to be provided, and reduces the impact load of cleaving.In the air cushion dimple, can load onto auxiliary camber member, helping the stability that improves hull, and help to break through when in great waves, travelling the wave under the hull.Above-mentioned auxiliary camber member can be made inverted V-shaped, and its underpart places the side near the topside hull, thereby increases the stability of hull in waving, and reduces the dimple internal surface area of inverted V-shaped sealing member following current immersion.One be contained between the front and back topside hull supercharging air cushion by the dynamic seal of downward power bias voltage.This sealing member can be made a plurality of immersion sledge type parts.May be subjected to bias voltage in the auxiliary camber member of dimple, perhaps, the outboard side of dimple is lower than the ship inboard, thereby further improves the stability of waving of ship.Complete and failure-free stern fixing seals can optionally be connected with the stern seal of activity on the structure, this helps air seal, the control hull balance, and/or current are rushed at be positioned at the propelling unit of stern dynamic seal back.The fixing seals of stern can have a lower surface, and the previous section of this fixed type stern seal of this surface ratio is more smooth a little, and this just provides slipsurface efficiently for the tail end of vessel.Stern seal can have one low wave impact force is arranged, and is the lower surface of inverted V-shaped (look or look from flake from a underway baseplane) to small part.Stern seal can embed an abaculus, to reduce the area of wetted surface of stern seal high-drag.This abaculus in the stern seal can charge into gas-pressurized.The fixing structure division of stern seal can enlarge, and the mathematics summation according to its each several part can surpass the more than half of dimple width.Look from the vertical transverse plane of hull, the fixed sturcture part of stern seal can be angled with horizontal surface on the major part of their width, to reduce the wave impact force in very high sea.The gaseous tension control mechanism can pack in order to regulate at least at dimple gaseous tension partly.The gaseous tension of regulating this dimple part helps to keep hull best balance in billow.Can control the action of air pressure control mechanism with controller, thus the air pressure in the control dimple.Above-mentioned controller can be accepted the incoming signal of force value in relevant hull direction and the hull dimple.

According to most preferred embodiment of the present invention, separate the tall and thin shape air cushion hull of broad, synthetically say to have the feature that has significantly reduced low speed or " peak value " speed resistance than the wide air cushion hull of mono-.And the large-scale wide air cushion hull of single air-sprung that has has less resistance usually under very high-speed.That is partly owing to increased required extra sidewall on the ship inboard of the twin boat type broadside boat body that separates, and the area of wetted surface resistance is increased.The present invention has done the influence that some effort reduce the sort of area of wetted surface, and its method is to have used the new ideas that step vertically is set, and preferably the air on surface is introduced in the vertically disposed step downwards.Preferably its sidewall along vertically at the ship rear to inwards cone-shaped gradually, to reduce because the spray impacts the resistance that causes to step.

Because the present invention has adopted the topside hull that comes down to ship shape in its most preferred embodiment, so finished above-mentioned design plan with its best state, described topside hull, if a dynamic water plane from the immersion of hull has a common sharp fore and the stern shape of truncation.Have at least a topside hull keel plate back on the bow outwards to disperse, become substantially parallel in the major part of face length degree thereafter then.In most preferred embodiment, the topside hull is symmetrical, and still, asymmetric topside hull also can be used.Fixing and/or movable sealing member can be used in the pressurization gas dimple of topside hull, also can be used in the place near topside hull dimple.

Another embodiment of the present invention has adopted the ship madial wall narrower than outboard sidewall on twin-hull ship type air cushion topside hull.Its reason is that the horizontal transient force of stablizing hull is provided by the outboard sidewall mostly, because they are more much bigger apart from the distance on hull vertical center line plane.Therefore,, adopt wide ship madial wall extremely limited, adopt narrower ship madial wall then can produce lower submerged hull resistance the raising of stability from the viewpoint of lateral stability.

As for further reducing hull resistance, originally studies show that: adopt the front to have straight or more definite ship side and the back has than the curved sidewall shape and can be beneficial to.The more straight ship side in front can bring in very high sea better stable, and then tail will produce than slight drag than the curved sidewall shape.Stern curved sidewall shape is circular arc normally.

The height of the lower surface of ship madial wall preferably is higher than the lower surface of outboard sidewall, and its effect is to reduce hull resistance, because the position that the ship madial wall is soaked in water is less.This is possible, because the ship madial wall is nearer apart from hull vertical center line plane, therefore, waves in the process at hull, and it stands less vertical displacement.

As mentioned above, in most preferred embodiment, the topside hull has and roughly becomes fore pointed, that can adopt shallow dimple, because the fore of this point can separate oncoming wave, make them fling the both sides of topside hull, and do not allow their all dimples by the topside hull.The topside hull has quite like the sharp fore of ship shape and the stern of truncation, and the outline line of the horizontal waterline cross-sectional plane of the topside hull that this point can be from its most preferred embodiment is found out.This can compare with SECAT, and in SECAT, the topside hull of each SECAT has the protection face of rectangle on the water surface, and P306 is shown in Figure 11 in the SECAT article as mentioned above.And the most preferred embodiment that has perpendicular steps in the topside hull will be limited in the outside of topside hull when navigating by water in the billow or the increase of sea side area of wetted surface resistance greatly.Which bar of advantage recited above can not reduce performance yet, and the performance of quite good common twin-hull ship type hull can be provided when pressure charging system is closed really at least.This be because more shallow air cushion and arbitrarily dimple sealing member two air cushions that can form than SECAT design much more hull under water.This is because the dimple of the full degree of depth has been adopted in the design of SECAT to the immersion base plate of fore stern, and have a flexible seals of the full degree of depth, parallel thin side hull is adopted in this design, and extends to the immersion base plate from the beginning to the end, and forms each side of twin boat type broadside boat body.Be easy to see that when turning off supercharger, the design-calculated function of SECAT is necessarily the spitting image of the floating leaf of a leaf lily.

Adopt sealing member that dimple is separated several parts and also be beneficial to, the pocket surface area of immersion in the time of can reducing in billow, to travel.Especially all the more so when the inverted V-shaped seal designs that adopts according to qualifications, because such design shape has nadir on the ship board body sidewall, thereby the dimple vertical surface in inverted V-shaped sealing member downstream is left in the following current of guiding wave.The dimple sealing member also forms several less dimples that can be pressurizeed respectively in front and back, so that help hull balance.The pressure-gradient control valve that employing is handled by the controller on the ship divides other pressurization, and described controller can show the course of hull and the pressure in the dimple.

Under the air-sprung situation that separate front and back in adopting the topside hull is opened, originally studies show that the sealing member that needs an activity, the optimum structure form of sealing part is spring or other afterburning member biased downward, and is installed between two air cushions, so dynamic seal can be kept afloat effectively.When being subjected to the bigger pressure of air cushion than the rear portion, the air cushion of front just sealing member is applied downward power.Need the reason of dynamic seal to be, the wave pattern is being followed in the front-end and back-end of topside hull, has then experienced the rise in the air cushion and the wave pattern of landing near the centre portion of topside hull.

In most preferred embodiment, the central fore that is arranged on the inside (usually partly in its front) of topside hull is of great benefit to.At first, in appearance,, see or from profile, quite as the sharp fore of a yacht from end face if central fore extends forward; The second, can be provided at riding stationarity good when navigating by water in the billow, fore in very high sea is downward-sloping because central fore helps to prevent ship; The 3rd, central fore helps to prevent that ship from navigating by water that time immersion base plate is fiercelyed attack in fierce wave, because when run into billow, it can mention the previous section of ship, guides wave then and breaks away from the base plate that soaks.

Below in conjunction with description of drawings the present invention, in the accompanying drawing:

Fig. 1 is the right side view according to ship of the present invention;

Fig. 2 is the flat sheet of the bottom view of ship shown in Figure 1;

Fig. 3 is a ship shown in Figure 1 right side view when travelling in billow, and its fore is inclined upwardly shown in the figure;

Fig. 4 is the centerline sectional view along 4-4 line among Fig. 2;

Fig. 5 is the cutaway view along 5-5 line among Fig. 2;

Fig. 6 is the cutaway view along 6-6 line among Fig. 2;

Fig. 7 is the top plan view after ship shown in Figure 1 removes the deck;

Fig. 8 is the cutaway view along the 8-8 line of Fig. 4;

Fig. 9 is the front elevation of ship shown in Figure 1;

Figure 10 is the back view of ship shown in Figure 1;

Figure 11 is the cutaway view along the 11-11 line among Fig. 2,5,6,7;

Figure 12 is the cutaway view along the 12-12 line among Fig. 2,5,6,7;

Figure 13 is the cutaway view along the 13-13 line of Fig. 2;

Figure 14 is the transparent view of the sealing mechanism shown in Figure 13;

Figure 15 is the cutaway view of the intermediate active sealing mechanism of starboard side hull along the 15-15 line of Fig. 2;

Figure 16 is the cutaway view along the 16-16 line of Fig. 2;

Figure 17 is the cutaway view along the 17-17 line of Fig. 2;

Figure 18 is the cutaway view along the 18-18 line of Fig. 2;

Figure 19 is the right side view of the ship of another embodiment of the present invention, and this ship has the head of topside hull very long, that extend forward;

Figure 20 is the flat sheet of the bottom view of ship shown in Figure 19;

Figure 21 is the cutaway view along the 21-21 line of Figure 20;

Figure 22 is the cutaway view along the 22-22 line of Figure 20;

Figure 23 is the cutaway view along the 23-23 line of Figure 20;

Figure 24 is the cutaway view along the 24-24 line of Figure 20;

Figure 25 is the cutaway view along the 25-25 line of Figure 20;

Figure 26 is the cutaway view along the 26-26 line of Figure 20;

Figure 27 is the cutaway view along the 27-27 line of Figure 20;

Figure 28 is the cutaway view along the 28-28 line of Figure 20;

Figure 29 is the cutaway view along the 29-29 line of Figure 20;

Figure 30 is the transparent view of some representative type intermediate active sealing members and a hinge pin;

Figure 31 is the transparent view of a mid seal and actuator.

Referring to accompanying drawing, Fig. 1 particularly.Fig. 1 shows a ship 37 that travels on the sea of the calmness shown in sea waterline 34.Near the propelling unit 131(figure that there is shown starboard side hull 95, starboard side hull lateral wall 113, topside hull ship side 42, main body ship side 72, main body central authorities fore 38, deck line 46, stern framing 97, are arranged in the hull water surface 36 are a water surface propeller actuators) and be positioned at ventilation staged watertight compartment 47 on the vertical direction.In most preferred embodiments more of the present invention, vertically disposed ventilation staged watertight compartment 47 comprises the type conical bench 49 on angled oblique line 48 and the vertical direction.Vertically disposed step ventilation watertight compartment 47 can reduce the area of wetted surface (with sea level waterline 34 in scheming as test stone) of starboard side hull 95.When ship travels in billow, the reduction of area of wetted surface will be more obvious.

Fig. 2 shows the flat sheet of the bottom view of ship 37, and it shows the structure 99 that connects hull, below structure 99 is being the immersion base plate 41 that has an air turbulence producer 39.In most preferred embodiment of the present invention, the structure 99 that connects hull generally is connected with central fore 38, port side hull 96 and starboard side hull 95 with mechanical way.In the present embodiment, the immersion base plate 41 also with stern framing 97, main body on the side of a ship 72 be connected with 73.Central authorities' fore 38 is preferably with the vertical center line planes 32 of the ship centering that is as the criterion, but also can adopt more than one central fore 38 and central fore 38 also can be with the vertical center line plane 32 of ship centering.Ship 37 has a vertical center line plane 32, the vertical center line plane 33 of a port side hull and the vertical center line plane 98 of a starboard side hull.Also show preceding dimple 58, middle dimple 59 and the afterbody dimple 60 of deck line 46, propelling unit 131, the external ship side 42 of ship board and interior ship side 43, the external keel plate 44 of ship board and keelson plate 45 port side hull madial walls 110, port side hull lateral wall 111, starboard side hull madial wall 112, starboard side hull lateral wall 113, pressurized gas source pipeline 84 and topside hull among the figure.It should be noted that no matter be the dimple (from 1 to a lot of) that

topside hull

95 or 96 all can be provided with any amount; And for example central hull 38 of other hull structural member also can be provided with the pressurization air drain when needing.

As can be seen from Figure 2, the port side hull is provided with fixing inverted v-shaped dimple sealing member, and the side hull is provided with that to contain with respect to hull be the movable sealing member and the comprehensive sealing mechanism of fixing seals astarboard.In general, the shape of the sealing member on the hull of both sides is preferably identical, and still, composite type sealing mechanism as shown in the figure then is very practicable.Fixing seals has preceding sealing member 90, mid seal 89 and stern seal 88.As can be seen, the seal section 100 at oblique angle is lower to the position and seal section 101 comparison level is similar from a vertical cross section of ship.When ship travels in great waves, use in front bevelled surface 100 more can provide good riding stationarity comparatively the lower surface 101 of level higher aerodynamic efficiency then is provided, therefore, this compages are rational.Port quarter sealing member 88 contains an abaculus 93, affact on the abaculus 93 by the pressurization gas of sending here via conduit 94 from dimple 60 or other sources of the gas, so that on abaculus 93, form a gas blanket, thereby reduced the area of wetted surface of stern seal 88, thereby also reduced the resistance of area of wetted surface.

The random sealing mechanism of starboard side hull 95 is to be positioned at fwd

dynamic seal

51,52,53 and 54; Intermediate

active sealing member

55 and 56 and stern dynamic seal 91.Basically be that vertical (or paralleling) topside hull inside face is adjacent with dynamic seal usually, and this parallel topside hull inside face 57 can become divergent shape at the afterbody place of contiguous

dynamic seal

51,52,53,54,55 and/or 56.The function of these dynamic seal will further be set forth below, and still, their main purpose provides the better air seal of fixing seals on this port side hull.

The front end of starboard side hull 95 can cut out and form as shown in the figure the hull that does not have most advanced and sophisticated fore.The fore that a kind of any embodiment of the present invention is the topside hull can partly be clipped and make dynamic seal 51 ship board body before form a central fore that has only a bit or be provided with the tip.

The profile of starboard side hull when Fig. 3 shows ship 37 and travels in the billow shown in sea waterline 34.In the present embodiment, central fore 38 is inclined upwardly.As can be seen,

dynamic seal

51,52 and 53 fwd starboard side hulls 95 extend downward the following of keel line 44 so that help the sealing pressurization gas.

Fig. 4 show the immersion base plate 41 of central fore 38 back vertical sectional view (central fore 38 help to prevent wave fiercely attack the immersion base plate 41).Immersion base plate 41 is actually below hull connection structure 99.Air turbulence producer 39 also is shown and to the influence (shown in airflow arrows 40) of windstream among the figure.Thereby the turbulent flow that is produced has reduced the area of windstream and has increased air turbulence producer 39 fwd static air pressure power, and the result has improved the lift that acts on the immersion base plate 41.Certainly, this effect has also improved the net effciency of ship 37.Also show horizontal preceding pressurized air stream pipeline 82 and back pressurized air stream pipeline 83 among Fig. 4.

Fig. 5 shows work and other features of the gas pressurization system of port side hull 96.Gas pressurization system shown in the present embodiment contains a gas pressurized device or blwr CD-ROM drive motor 69, preceding blwr 67, preceding control damper 75, air inlet pipe 86, freeing pipe 85, back blwr 68 and back control damper 76.In the present embodiment, preceding blwr 67 dimple 58 and middle dimple 59 supply pressurization gas blwr 68 dimple 60 supply pressurization gas backward then forward.

Owing to might regulate air pressure in dimple 58,59 and 60 by

control damper

75 and 76, therefore improved significantly ship 37 pitching, wave and the heave and set characteristic.The work of these valves is usually by controller 79 controls, the dimple pressure data from pressure sensor 87 that controller 79 receives as incoming signal by adaptor union 92.Controller 79 also receive usually from the gyrostabilizer (not shown) hull bearing data (pitching is waved and the data of going off course) and from the force of inertia acceleration information that normally is installed in controller 79 in-to-in accelerometer (not shown).79 pairs of above-mentioned information of controller are handled and successively control signal are delivered in control damper 75 and 76.The work of controller 79 is such, if the state of fore is downward-sloping, the air-flow in the control damper 76 of back was flow through in control damper 75 and restriction before then controller 79 will all be opened.Thereby air pressure before this effect will increase in dimple 58 and the middle dimple 59 and the air pressure that reduces in the dimple 60 of back have been got back on the normal more balance position ship 37.Should be noted that if necessary, control damper can be arranged between

blwr

67,68 and the

dimple

58,59,60.Control damper also can be provided with the pressure that reduces in dimple 58,59 and 60 so that adjust the position of hull, but this design does not have above-mentioned design effective like that, because it will waste the power of blwr.

The abaculus 93 that embeds stern fixing seals 88 also is shown among Fig. 5, and sealing member 88 has the lower surface 101 of comparison level, just acts on this surface from the pressurization gas of back dimple 60.Also show center fixed sealing member 89 and preceding fixing seals 90 and bevelled sealing surfaces 100 more among the figure.Air-flow is represented with airflow arrows 74.

Fig. 6 shows the cutaway view of ship 37 navigation in the very high sea shown in sea waterline 34, and at this moment, its fore is on the acclivitous position.So far, the preceding

sealing member

51,52,53 of employing activity and 54 advantage are just clearer, because this sealing member has limited the air leakage of middle dimple 59 when hull surfaces.As can be seen, in this embodiment, thereby having exposed sea 34, preceding dimple 58 lost its pressurization gas, till it reenters in the water.Also show the intermediate

active sealing member

55 and 56 that is positioned in the present embodiment on the dimple waterline 35 among Fig. 6.As can be seen, on the line of centers section-drawing of this topside hull, has only the hinge pin 50 of having obtained dynamic seal on dynamic seal 51 and 55.Fig. 6 also shows the back dynamic seal 91 by actuator 62 its positions of control.In the present embodiment, back dynamic seal 91 can help to control the horizontal surface in the dimple 60 of back and assist current are guided on the water surface propeller propelling unit 131.

Fig. 6 also shows gas boosting and control system.It comprises blwr CD-ROM drive motor 61, preceding blwr 67, preceding control damper 77, back blwr 68, back control damper 78, air inlet pipe 86, freeing pipe 85, airflow arrows 74, pressure sensor 87, controller 79 and adaptor union 92.The work of this gas pressurization system is identical with the explanation of Fig. 5 basically with function, so can be with reference to top explanation.But the controller 79 of Fig. 6 also can be controlled for example motion of back dynamic seal 91 of dynamic seal by the work of control actuator 62.Also show main CD-ROM drive motor 130, central fore 38 and deck line 46 among Fig. 6.

Fig. 7 shows a kind of gas pressurization system design-calculated planar view of the best.In this system, port side blwr 65 and 66 is driven by port side blwr motor 61, and the air-flow that enters in the blwr is controlled by control damper 75 and 76.Starboard side blwr 67 and 68 is driven by blwr CD-ROM drive motor 69, and the air-flow that enters blwr is by

control damper

77 and 78 controls.The

conduit

82 and 83 that interconnects in addition, just in case larboard blwr motor 61 lost efficacy, they can guarantee that also pressurization gas flows in the port side hull 96, perhaps, just in case the blwr motor 69 of starboard side lost efficacy, and flowed in the starboard side hull then can guarantee pressurization gas.Valve 80 and 81 is usually located in interconnected conduit 82 and 83.

Control damper

75,76,78,79,82 and 83 usefulness controllers 79 are by adaptor union 92 co-operative controls.

Fig. 8 shows the work that is similar to the ventilation staged watertight compartment 47 on the vertical direction shown in Fig. 1,3 and 4 the section-drawing.These staged watertight compartments 47 can reduce the area of wetted surface (the perhaps area of wetted surface of one-sided hull) of topside hull significantly, thereby have reduced the area of wetted surface total drag of hull.As can be seen from the figure, the port side hull is arranged essentially parallel to the vertical line of centers section 33 of port side hull along the ship madial wall (downside among Fig. 8) of vertically disposed ventilation staged watertight compartment 47, and the lateral wall of ship (upside of Fig. 8) the then stern framing 97 of past more stern is oblique inward towards vertical center line plane 33 more.This sidewall bevelled reason inwards is that it can reduce or eliminate water (horizontal surface with the water surface 36 that the is close to hull is represented) resistance backward that vertically disposed step 49 impacts cause from previous vertically disposed step to the next one.Certainly, the either side or the both sides that tilt can be arranged on hull inwards of vertically disposed staged watertight compartment 47 and/or sidewall, and, if applicable, also can be arranged on other positions of central fore.

From Fig. 8 also as can be seen, in most preferred embodiment of the present invention, it is substantially parallel with interior ship side 43 that outer ship side 42 still keeps, and they all are arranged essentially parallel to vertical center line plane 33.From Fig. 1,3,4 as can be seen, in most preferred embodiment of the present invention, vertically disposed staged ventilation watertight compartment 47 is actually and ends at (or terminate in be higher than)

ship side

42 and 43 places, therefore, can provide wideer, more effective air cushion and/or the area coverage of hull structure on the water surface.

Fig. 9 is the fore view of ship 37, it show gear of the present invention have very high, from the sea 34 distances to the eliminating wave that immerses 41 of base plates.

Figure 10 and 11 further shows the water spray pattern that leaves hull when running at high speed on the sea of ship at no stormy waves.

Figure 11 is the typical cutaway view by back blwr 66 and 68.There is shown blwr freeing pipe 85, interconnected airflow duct 83, interconnected valve 81 and airflow arrows 74.

It is reverse V-shaped dynamic seal 55 that Figure 11 also shows starboard side hull 95 bottoms.Usually be action between the parallel or vertical inside face 57 basically at two, as shown in starboard side hull 95.The bottom surface (being its partial-length at least) of wishing dynamic seal usually has certain shape, so that the riding stationarity when travelling among the good Yu Shutao is provided.As can be seen, the upper surface of back dimple 60 has best inverted v-shaped from port side hull 96.In this most preferred embodiment, the surperficial biased outboard side that makes of dimple is occupied bigger surface than ship inboard, the purpose of doing like this is actually when ship contacts with water, because this skew meeting gives ship with bigger lift on the side overboard, thereby what increased ship waves stability (just, the lift of outboard side more strengthens the lift difference with 32 places, vertical center line plane of ship, and the result just can obtain the bigger moment of flexure of waving).

Figure 12 is the section-drawing by preceding control damper 75 and 77.Figure 12 also is the situation of expression foot in very high sea, the dimple 58 of its port side hull 96 surfaces, therefore, pressurization gas is drained, and the dimple of starboard side hull 95 still keeps its air pressure, because its dynamic seal 52 extends downwardly under

keel

44 and 45, therefore have at least the part sealing can prevent gas leakage.In most preferred embodiment of the present invention, preceding dynamic seal 52 is 57 actions of inside face of parallel topside hull at two basically, as shown in present embodiment starboard side hull 95.

Figure 12 also shows to exist on the upper surface of dimple 58 of port side hull 96 and is similar to the same bias voltage shown in Figure 11.Notice that for function of the present invention, dimple surface does not need outside bias voltage can adopt the dimple surface of symmetry, when perhaps needing really, can adopt to the inboard out-of-position dimple surface of the ship of dimple yet.And, play a role in order to make the present invention, be best although do like this with their vertical center line plane one-tenth symmetry the both sides of topside hull, be not necessary.

As can be seen, the degree of depth that the average depth of dimple (topside hull keel 44 and 45 above distances) is higher than than immersion base plate 41 on the keel 44 and 45 of topside hull is much smaller from Fig. 5,6,11 and 12.This is the crucial feature that the present invention compares with this specification sheets front described SECAT of background parts, the degree of depth of the latter's immersion base plate and the deep equality of dimple.SECAT adopts the flexible seals of the full degree of depth in each topside hull dimple of front and back, so that allow wave substantially all to waltz through, as long as the height of the aspect ratio of wave immersion base plate is low.In most preferred embodiment of the present invention, wave separately guides them to leave dimple by the ship point as bow on each topside hull front end.Therefore, the present invention can adopt and have only soak half of the base plate degree of depth or the average dimple degree of depth still less.In fact, under a lot of situations of the present invention, can think that the dimple degree of depth is suitable and practicable numerical value for 25% of the immersion base plate degree of depth.The present invention adopts the more shallow dimple degree of depth that following several advantage is arranged: (1) when turning off blwr, draft is more shallow; (2) be a kind of intrinsic stronger and lighter structure; Have riding stationarity and driving performance preferably when (3) turning off blwr.

The preceding

dynamic seal

51,52,53 and 54 that Figure 13 shows starboard side hull 95 be in downward extension and with sea waterline 34 contacted positions on.In the present embodiment, these preceding sealing

members

51,52,53 and 54 are fixed in the dimple structure 58 of topside hull by hinge pin 50.The hinge pin 50 of the most preceding dynamic seal 51 only is shown, because other hinge pin 50 does not pass through the line of centers of the topside hull of this structure among the figure.As can be seen from the figure, the work of dynamic seal 54 is in the present embodiment by actuator 62 controls (although not necessarily will finish this control with actuator) before last, also can adopt (not shown) such as spring bias mechanism, energy disperser to come to provide recuperability to one or whole dynamic seal.

Sealing

member

51,52,53 and 54 was in the position that they are return before Figure 14 illustrated.Shown in this most preferred embodiment, these dynamic seal not only forward lap, and their both sides also overlap each other, and this is a kind of position of the best, because it can prevent when dimple surfaces that air-flow from spilling from the both sides of dimple.Figure 14 also clearly show that the hinge pin 50 formula bindiny mechanisms of dynamic seal.It should be noted that in the present embodiment hinge pin 50 does not penetrate sealing

member

52,53 and 54, because do the motion that can hinder sealing

member

52,53 and 54 like this.

Figure 15 shows the intermediate active sealing

member

55 and 56 of putting into back dimple 60.In this case,

dynamic seal

55 and 56 is immediately following after dimple waterline 35, and

dynamic seal

55 and 56 is return.Also show the hinge pin 50 of dynamic seal among the figure.Contain foam stuffing 70 of a kind of osed top born of the same parents shape and exterior skin 71 in these back

dynamic seal

55 and 56 the structure.This method for making provides a kind of weight the extremely light and higher movable sealing structure of intensity, and in most preferred embodiment of the present invention, this structure is damp-proof, because it has adopted a kind of osed top born of the same parents shape plastic foam filler 70.Preferably all dynamic seal are all made in this way, and still, the method for other manufacturing sealing member (comprise and adopt flexible sealing material) also can be used.

Figure 16 shows and is used for the driving device 62 of the back dynamic seal 91 in the position right topside hull 95.As can be seen, in this special embodiment, adopted the back dynamic seal 91 of certain shape.

Figure 17 shows dynamic seal 91 behind a kind of optional buffer or energy disperser 63 and the starboard side hull.Certain shape is made to be reduced in the impact load of water in the great waves in bottom in back dynamic seal 91.It should be noted that can use a kind of simple spring (not shown) or other bias mechanism with shown in buffer 63 link together or replace it.

Figure 18 shows the most preferred embodiment of a kind of back dynamic seal 91, and it adopts a kind of gas spring pressure-bearing bellows 64 to control the position of the back sealing member of starboard side hull 95.In most preferred embodiment of the present invention, the member that contacts with water is actually the tabular component of a glass fibre or other material.Adopt the advantage of gas spring bellows to be: (1) just has been loaded with pressurized gas source aboard ship; (2) the air pressure bellows not only can be used as buffer component, and can position the back dynamic seal; (3) position of back dynamic seal 91 can be controlled by the output signal of the controller shown in Fig. 5,6,7 at an easy rate, and controller is regulated the air pressure valve (not shown), and air pressure valve is then regulated the pressure in the gas spring bellows 64.

Figure 19～29 show a kind of embodiment shown in starboard side hull 95, that have the ship 37 of topside hull extremely elongation, that extend forward that has.Riding stationarity that this gear has the advantage of more effective long topside hull and better travels in billow advances because the fore of its topside hull is actually that plough the waves rather than unrestrained more.In this embodiment, the ship side 42(of topside hull is commonly referred to the straight side of a ship) end near the middle part of ship.This is because in this embodiment of the invention, the more flat surface of the front end of the lateral wall 113 of wall sided ship body they to the midship transition after synthetic one comparatively smooth and than curved surface.This transition will make fore place, front produce better stable and locate to have reduced resistance on the quarter.

Figure 20 is the flat sheet of the bottom view of the ship 37 of Figure 19.Dimple 58 and back dimple 60 were separated by the dynamic seal 103～108 that is limited on the hinge pin 50 between the dimple of front and back before port side hull 96 and starboard side hull 95 boths had.Pressurization gas is injected in the preceding dimple 58 by the airflow arrows 74 of deflation hole 84 by the direction of expression air-flow.The air cushion at sealing member lower surface 88 places is by

inclined surface

115 and 116 guiding behind the topside hull.The inside 43 of topside hull and keelson plate 45 are adjacent with starboard side hull madial wall 112 and starboard side hull lateral wall 113.In this most preferred embodiment and since sidewall during transition be backward by flat become crooked, so ship side just cannot see when advance in the rear portion of midship.As for port side hull madial wall 110 and lateral wall 111, situation also is the same.

Figure 20 also shows waterjet inlet 102, and as can be seen from Figure 20, the gentle pulvilliform shape of topside hull is asymmetric, and the

madial wall

110 and 112 of port side and starboard side hull then is straight basically.Though the design (as top shown in Figure 2) of topside hull fore of symmetry is best, if applicable, also can adopt any symmetry and asymmetric ship board shape.This because of the shape of the topside hull of symmetry or part symmetry with part wave local derviation each side to topside hull fore tip, asymmetric topside hull shown in Figure 20 then with all waves all local derviation to the outside.Has best riding stationarity when therefore, Dui Cheng topside hull travels in billow.

It is downward-sloping and enter in the wave on sea 34 that Figure 21 shows the fore of topside hull.As can be seen from the figure, pointed topside hull has entered in the wave rather than has crossed it, thereby has than pulsation-free and take performance.When ship is in graphic downward-sloping state, preceding air cushion with follow-up pressure and greater than back air-sprung pressure so that ship is corrected on the position of level.At this moment, aport before the port forward riding quality control cock 75 of blwr 65 air feed will automatically all open, aport afterwards the port aft riding quality control cock 76 of blwr 65 air feed is then closed to small part.The air cushion of dimple 58 obtained maximum pressure and makes the air-sprung pressure of back dimple 60 then reduce to minimum before this program will make, thereby ship 37 is returned on the position of level more.

Preferably will float over or be attached between the air cushion of forward and

backward dimple

58,60 that dynamic seal (dynamic seal 106 as shown) on the air cushion water surface 35 is arranged on the topside hull.Usually must be provided with and a kind ofly can force the downward mechanism of dynamic seal, for example spring 109, so that can guarantee that dynamic seal still rests on its position when preceding dimple 58 air-sprung pressure are higher than the air cushion of back dimple 60.Also should remind a bit, if necessary, also additional air cushion dimple can be set on the topside hull of any side.

Figure 22 shows the cutaway view of port side hull 95 and starboard side hull 96 front ends.As can be seen from the figure, its lower surface and horizontal angle are less than the angle of upper surface and horizontal surface.Therefore can obtain greater than the lift of going into waterpower, thereby after the fore of ship 37 is downward-sloping, can assist to recover its horizontality.

Figure 23 shows ship 37 fwd shapes, comprises the front end of the optional central fore 38 of the topside hull front end that is positioned at the progressive flooding base plate.Notice that in this most preferred embodiment, the position of these front ends of the lateral wall 111,113 of port side and starboard side hull has the straight outer side of a ship 42 and the more flat surface that is connected with the external keel plate 44 of ship board.The inside face of port side and starboard side hull 110,1,120 minutes is narrow, preferably is the water of cutting as a blade basically, so that make resistance reduce to minimum.

Figure 24 show behind port side and the

starboard side blwr

66 and 68 and they be how pressurization gas to be delivered to dynamic seal 103～108.Dynamic seal 103～108 normally is fixed on the hull 37 with hinge pin 50.Air is discharged by back

blwr

66,68 superchargings and according to the direction shown in the airflow arrows 74 then by the

control damper

76,78 that enters into port side and starboard side shown in the airflow arrows 40.In the present embodiment,, ship 37 travels on the sea of calmness owing to being expressed, therefore, and dynamic seal 103～108th, level, and float on the air cushion water surface 35.They are normally vertical adjacent with the dynamic seal surface 57 of hull basically.

Again referring to Figure 24, it should be noted that the lower shape of port side and starboard

side hull sidewall

111 and 113 is preferably made more crooked more than the shape of the leading portion shown in Figure 22 and Figure 23 below.This method than curved surface that carries out the transition to the back from the more flat inclination surface of fwd or straight side of a ship sidewall surfaces makes fore have good tilt stability and makes stern have good aerodynamic efficiency.Also as can be seen, the lateral wall 111,113 of port side and starboard side hull is wideer, darker than the madial wall 110,112 of port side and starboard side hull from figure.Therefore can obtain the highest lateral stability and minimum resistance.

Figure 25 is the section-drawing the same with Figure 24, but in Figure 25, ship 37 topside to the right waves.At this moment, dynamic seal 103～108 is angled because they follow the tracks of the air cushion water surface 35.Preferably the port side hull of dynamic seal (not being fixing seals) shown in Fig. 2 and Fig. 5 embodiment is the same between topside hull air cushion, because they can float on the inboard or the air cushion water surface 35 of topside hull, fixing seals then can not, other members shown in Figure 25 identical with shown in top Figure 24 that had just introduced in detail is so just no longer repeated.

Figure 26 is the cross sectional drawing of most preferred embodiment typical case hull, and it shows the fore cutaway view that has just surfaced, and any intermediate active sealing member identical with shown in Figure 24 and 25 all.In this most preferred embodiment, air cushion and back air cushion before the topside hull only has, dynamic seal preferably be positioned near the of topside hull waterline length mid point or the waterline length mid point partially before on any position.

The fact below understanding is crucial, the madial wall 110,112 that is port side and starboard side hull is narrower than the lateral wall 111,113 of port side and starboard side hull, and the terminal point of the lower surface that they contact with water is also than latter height, so its dynam resistance is minimum and wave stable maximum.This effect will be below to further discussing in the explanation of Figure 27.

As can be seen from Figure 26, in most preferred embodiment of the present invention, the inside face 115 of topside hull and outside face 116 are inwardly angled.

Figure 27 is the cutaway view the same with Figure 26, just this moment ship or hull 37 to the right topside wave.The fact is very important below understanding, and promptly in this most preferred embodiment, the lower surface that the madial wall of topside hull is narrower than lateral wall and they contact with water is also than latter height, and therefore, the madial wall resistance of hull is less.As can be seen from Figure 27, be under this condition of waving at ship, the port side dimple air-sprung water surface 35 is basically by interior and

lateral wall

110 and 111 restrictions of port side hull double altitudes.It is also important that in front elevation, the starboard side hull air-sprung water surface 35 is lower, therefore under higher pressure, can make the starboard side hull obtain the lifting moment that maximum correction is waved, because the air-cushion pressure of starboard side hull is higher at this moment.

Figure 28 shows best inverted v-shaped stern seal.Notice that the inside and outside inclined surface 115,116 of dimple and the angle of horizontal surface are bigger, and these surfaces 115,116 extend upward at the place, summit of the inverted v-shaped of the best to be converged.Can think that feature of the present invention just is this inverted v-shaped, that is to say that the inclined surface 115,116 of dimple directly or prolong ground (as shown in the figure) and 114 converge and form an inverted v-shaped on the summit.Preferably this summit is positioned under the deck line 46 of hull 37, and is more much higher than the shape of back sealing member at least, because just can form a best inverted v-shaped sealing member that can obtain riding stationarity good, that travel in very high sea like this.

Figure 29 shows the cutaway view of the seals of stern dimple.As can be seen from the figure it to have developed into almost be the horizontal surface 88 of full span, but still have little inverted v-shaped position, a place, the summit is 114.Under the low resistance shape of the best, what span was helped in then further differentiation is flat stern sealing surfaces 88 basically, as shown in Figure 20.From making the resistance of running at high speed reduce to minimum viewpoint, also wish in inwall 110, the 112 fusions sealing surfaces 88 herein of port side and starboard side.

Figure 30 shows the hinge pin 50 of some representative type intermediate active sealing member 106,107,108 and sealing member.In the present embodiment, the bottom surface of dynamic seal can be on the various height, just as they float over the water surface of fluctuation.In Figure 30, for simplicity, downward power-assisted member (spring as shown in top Figure 21) is not shown.

Figure 31 shows a single sealing member 106 and hinge pin 50, and it carries out bias voltage and buffering by force by spring 109 and the energy disperser or the buffer 63 that are fixed on the hull 37.Energy disperser 63 and spring 109(independent or as shown in the figure comprehensive) be a kind of good mechanism that can produce additional downward pressure to dynamic seal 106, other mechanism also can use, and includes, but is not limited to the device of the generation power shown in front Figure 16,17,18.

Claims

1, a kind of supporting air-sprung ship that is arranged in the twin boat type broadside boat body that has, described twin boat type broadside boat body and hull connection structure are mechanically coupled together, described supporting air cushion is supplied with pressurization gas by gas boosting mechanism, it is characterized in that a dimple is arranged in each twin boat type broadside boat body, this dimple is limiting the pressurization air cushion at least in part, in each above-mentioned twin boat type broadside boat body has, lateral wall, if on the level immersion plane of this ship, look, dimple at least one above-mentioned twin boat type broadside boat body is its width widen at least a portion length of the longitudinal length that carries out the transition to its rear portion from its front part, when above-mentioned ship at ash breeze when travelling greater than 25 nautical miles/hour speed, its air cushion is pressurized to the most of weight that is enough to supporting ship.

According to the ship of claim 1, it is characterized in that 2, described dimple in a twin boat type broadside boat body widens earlier then that width becomes comparatively constant at least a portion length of longitudinal length.

According to the ship of claim 1 or 2, it is characterized in that 3, described dimple in an above-mentioned twin-hull ship type topside hull widens 25% at least from the front to the back head width.

According to claim 1,2 or 3 ship, it is characterized in that 4, if look, at least one above-mentioned dimple is asymmetric at least in part on the level immersion plane of above-mentioned ship.

According to each ship of claim 1 to 4, it is characterized in that 5, the inside and outside sidewall of the topside hull that at least one is above-mentioned has outer immersion surface, this surface is asymmetric mutually at least in part.

6, according to each ship in the claim 1 to 5, it is characterized in that the center-line-average of at least one described dimple more than the lowermost portion of twin-hull ship type topside hull keel is 50% also littler than the distance from the lowermost portion of twin-hull ship type topside hull keel to the immersion base plate of above-mentioned ship.

According to each ship in the claim 1 to 6, it is characterized in that 7, central fore mechanically is connected with above-mentioned hull bindiny mechanism.

8, according to each ship in the claim 1 to 7, it is characterized in that, at least one basically the sealing member of rigidity be arranged at least in part near an above-mentioned twin boat type broadside boat body dimple place, the bottom surface of the sealing member of described rigidity basically, if at least one vertical horizontal section of ship, look, comprise some surfaces, this surface on most of width of described sealing member with horizontal surface at angle.

9, ship according to Claim 8 is characterized in that, the sealing member of above-mentioned rigidity basically is asymmetric at least in part.

10, according to Claim 8 or 9 ship, it is characterized in that, the sealing member of above-mentioned rigidity basically comprises some lower seals surface at least in part, if on a vertical transverse section of ship, look, the sealing member of the rigidity basically that this surface ratio is above-mentioned near and on above-mentioned fwd surface, lower seal surface roughly level is a little more.

11, according to each ship in the claim 1 to 10, it is characterized in that, the ventilation step vertically is set on the side of at least one above-mentioned twin boat type broadside boat body.

12, according to the ship of claim 11, it is characterized in that, if on a horizontal surface of above-mentioned ship, see, at least a portion of above-mentioned vertically disposed ventilation step, the above-mentioned side surface of above-mentioned twin boat type broadside boat body, the rear portion span is than narrower near anterior span.

13, according to each ship in the claim 1 to 12, it is characterized in that, first preceding dynamic seal is arranged on the previous section near an above-mentioned twin boat type broadside boat body dimple, and at this place, the first above-mentioned preceding dynamic seal is movable with respect to ship.

According to each ship in the claim 1 to 13, it is characterized in that 14, an intermediate active sealing member is installed at least in part near a twin boat type broadside boat body dimple place, this intermediate active sealing member is movable with respect to ship.

According to the ship of claim 14, it is characterized in that 15, described intermediate active sealing member mechanically is connected with a kind of pressure mechanism that it is applied downward power.

According to the ship of claim 15, it is characterized in that 16, above-mentioned press is, is resilient to small part.

17, according to claim 14,15 or 16 ship, it is characterized in that above-mentioned intermediate active sealing member is made up of a plurality of independently parts.

18, according to each ship in the claim 1 to 17, it is characterized in that first dimple and second dimple are arranged at least one twin boat type broadside boat body.

According to the ship of claim 18, it is characterized in that 19, gas boosting mechanism can be with different pressure to described first dimple and the second dimple air feed.

20, according to each ship in the claim 1 to 19, it is characterized in that if look, when the ship on even keel travelled, the above-mentioned lateral wall of above-mentioned catamaran type topside hull on average, roughly was lower than its madial wall at least one vertical transverse section of ship.

21, according to each ship in the claim 1 to 20, it is characterized in that, the madial wall of above-mentioned twin boat type broadside boat body, on average, roughly narrower than its lateral wall.

22, according to each ship in the claim 1 to 21, it is characterized in that the above-mentioned lateral wall of above-mentioned twin-hull ship type topside hull has some lower surfaces, these surfaces comprise the inclination surface of front and back than curved surface.

23, a kind of supporting air-sprung ship that is arranged in the twin-hull ship type topside hull that has, this twin-hull ship type topside hull and hull connection structure mechanical connection, described supporting air cushion is supplied with pressure gas by gas boosting mechanism, it is characterized in that, dimple before in each twin-hull ship type topside hull, having one, this dimple limits the supercharging air cushion at least in part, one back dimple is arranged in each twin-hull ship type topside hull, this dimple limits the supercharging air cushion at least in part, this dimple is arranged on the rear portion that has at least major part to be positioned at above-mentioned preceding dimple, above-mentioned preceding dimple and back dimple separate at least in part, and gas boosting mechanism can be with different pressure to dimple before described and back dimple air feed.

According to the ship of claim 23, it is characterized in that 24, the preceding dimple at least one above-mentioned twin boat type broadside boat body is if see its width widen at least a portion length of its longitudinal length on a horizontal wetted surface of above-mentioned ship.

25, according to the ship of claim 23 or 24, it is characterized in that, at least one basically the sealing member of rigidity be at least partially disposed near an above-mentioned twin boat type broadside boat body dimple place, the bottom surface of the sealing member of above-mentioned rigidity basically, if at least one vertical Transverse plane of ship, see, comprise some surfaces, these surfaces on the major part of the width of above-mentioned sealing member with horizontal surface at angle.

26, according to claim 23,24 or 25 ship, it is characterized in that on a side surface of at least one above-mentioned twin boat type broadside boat body, vertically disposed ventilation step being arranged.

According to each ship in the claim 23 to 26, it is characterized in that 27, a dynamic seal is arranged on (at least in part) dimple near an above-mentioned twin boat type broadside boat body, at this place, above-mentioned dynamic seal is movable with respect to ship.

28, according to the ship of claim 27, it is characterized in that: above-mentioned dynamic seal and a kind of pressure mechanism mechanical connection that can apply downward power it.

According to the ship of claim 27 or 28, it is characterized in that 29, above-mentioned dynamic seal is made up of a plurality of independently parts.

30, according to each ship in the claim 23 to 29, it is characterized in that on average, its madial wall is narrower than lateral wall, this lateral wall is adjacent with at least one above-mentioned dimple at least in part.

31, according to each ship in the claim 23 to 30, it is characterized in that on average, its madial wall is in height than lateral wall height, if see on one of ship vertical Transverse plane, above-mentioned lateral wall is adjacent with at least one above-mentioned dimple at least in part.