WO1990014976A1 - Rigid air-cushion seals for surface action vessels - Google Patents

Rigid air-cushion seals for surface action vessels Download PDF

Info

Publication number
WO1990014976A1
WO1990014976A1 PCT/FR1990/000345 FR9000345W WO9014976A1 WO 1990014976 A1 WO1990014976 A1 WO 1990014976A1 FR 9000345 W FR9000345 W FR 9000345W WO 9014976 A1 WO9014976 A1 WO 9014976A1
Authority
WO
WIPO (PCT)
Prior art keywords
air
hull
closures
surface action
cushion
Prior art date
Application number
PCT/FR1990/000345
Other languages
French (fr)
Inventor
Nguyen Manh Khanh
Original Assignee
Nguyen Manh Khanh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Nguyen Manh Khanh filed Critical Nguyen Manh Khanh
Publication of WO1990014976A1 publication Critical patent/WO1990014976A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60V—AIR-CUSHION VEHICLES
    • B60V3/00—Land vehicles, waterborne vessels, or aircraft, adapted or modified to travel on air cushions
    • B60V3/06—Waterborne vessels
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60V—AIR-CUSHION VEHICLES
    • B60V1/00—Air-cushion
    • B60V1/16—Flexible skirts

Definitions

  • the present invention relates to rigid air suspension closures for surface effect ships.
  • the object of the present invention is to remedy these drawbacks by rigid closures, offering good resistance to impacts, provided with an adjustable pneumatic suspension system which allows them, on the one hand to follow the undulations of the waves, and on the other hand to correct the attitude of the ship according to the centering of the masses.
  • the air cushion is closed at the front and at the rear by rigid rectangular flaps, the upper front edge of which is fixed to the hull of the ship by a hinge, and of which the rotation is dependent on a deformable chamber maintained under air pressure in an autonomous manner. It is the air suspension chamber.
  • the rear edge of the flap is retained at the hull by an articulated panel covering the entire width between the interior walls of the side pins.
  • the room is made up of the space under the hull between the interior walls of the side skittles, between the flap and the hinged panel which serves as its suspension arm.
  • the edges of the shutter and of the panel which come flush with the inner walls of the side pins are provided with sealing tongues which are pressed against these walls under the effect of pressure.
  • the pressurization in the chamber deploys the articulated panel and maintains the flap in a position of equilibrium with the external forces including those exerted by the hydrostatic and dynamic lift.
  • the variation of the pressure in the fore and aft chambers modifies the position of the flaps and makes it possible to adjust the trim of the ship.
  • the chamber compresses on a ridge or relaxes on a hollow, lets the shutter constantly follow the wave with a minimum of air cushion leakage.
  • the closures are made up of multiple elements juxtaposed one beside the other and provided at their common edges with tongues which are pressed together by pressure and seal the air cushion.
  • FIG. 1 shows a longitudinal section of a surface effect ship provided with closures according to the invention.
  • FIG. 4 shows a section of the front closure.
  • FIG. 5 shows a section of the rear closure.
  • FIG. 6 shows a front view of a variant of the closures.
  • the ship comprises between the side keels (2), an air cushion (10), closed at the front and at the rear by rigid rectangular flaps (3av ) and (3ar), the upper front edge of which is fixed to the hull (1) of the ship by a hinge (5'av) and (3'ar).
  • the flaps are retained in the hull by the panels (Aav) and (4ar) articulated around the hinges (5av) and (5ar) covering the entire width between the interior walls of the side keels.
  • the air suspension chamber (11) and (12) is formed by the space, between the hull and the side pins, between the flap and the articulated panel which serves as its arm suspension.
  • the pressure in the chambers is maintained autonomously by the regulation valves (6av) and (6ar) from the compression system (7).
  • the edges of the flap and of the panel which come flush with the walls of the side pins are provided with sealing tongues (8) which are pressed against these walls under the effect of pressure.
  • the hinges are provided with sealing tongues (8).
  • FIG. 6 shows a variant of the closures which consist of multiple elements (3 "av) juxtaposed one beside the other and provided at their common edges with tabs (8") which are pressed together by pressure and seal the air cushion.
  • the air suspension closures according to the invention are particularly intended for high performance surface effect vessels.

Abstract

Rigid air-cushion seals in surface action vessels comprising rigid flaps (3av, 3ar) retained against the hull by an air-cushion chamber (11av, 11ar) for correcting the trim of the vessel and continuously sealing the air cushion to the waves. The air-cushioned seals of the invention are intended in particular for high-performance surface action vessels.

Description

Fermetures rigides à suspension pneumatique pour les navires à effet de surface.  Rigid air suspension closures for surface effect vessels.
La présente invention concerne des fermetures rigides à suspension pneumatique pour les navires à effet de surface. The present invention relates to rigid air suspension closures for surface effect ships.
Les navires à effet de surface traditionnels sont très sensibles au centrage des masses. En effet, les variations du centre de gravité provoquent des changements d'assiettes importants qui nuisent gravement aux performances. Par ailleurs, au-dessus du clapot, les fuites d'air sous les jupes, particulièrement les jupes avant, provoquent de rapides pertes de pression du coussin d'air et par conséquent la retombée brutale du navire au grand détriment de la structure et du cenfort des passagers. Enfin, par gros temps, les jupes flexibles résistent mal aux impacts des vagues.  Traditional surface effect vessels are very sensitive to mass balance. Indeed, variations in the center of gravity cause significant changes in attitude which seriously affect performance. In addition, above the chop, the air leaks under the skirts, particularly the front skirts, cause rapid pressure losses of the air cushion and consequently the sudden fall of the ship to the great detriment of the structure and the comfort of passengers. Finally, in heavy weather, flexible skirts resist the impact of waves badly.
L'objet de la présente invention est de remédier à ces inconvénients par des fermetures rigides, offrant une bonne résistance aux impacts, dotées d'un système de suspension pneumatique réglable qui leur permette, d'une part de suivre les ondulations des vagues, et d'autre part de corriger l'assiette du navire en fonction du centrage des masses.  The object of the present invention is to remedy these drawbacks by rigid closures, offering good resistance to impacts, provided with an adjustable pneumatic suspension system which allows them, on the one hand to follow the undulations of the waves, and on the other hand to correct the attitude of the ship according to the centering of the masses.
Selon l'invention, entre les quilles latérales, le coussin d'air est fermé à l'avant et à l'arrière par des volets rigides rectangulaires, dont le bord supérieur avant est fixé à la coque du navire par une charnière, et dont la rotation est dépendante d'une chambre déformable maintenue sous pression d'air d'une manière autonome. C'est la chambre de suspension pneumatique.  According to the invention, between the side keels, the air cushion is closed at the front and at the rear by rigid rectangular flaps, the upper front edge of which is fixed to the hull of the ship by a hinge, and of which the rotation is dependent on a deformable chamber maintained under air pressure in an autonomous manner. It is the air suspension chamber.
Selon une forme de réalisation préférentielle le bord arrière du volet est retenu à la coque par un panneau articulé couvrant toute la largeur entre les paroies intérieures des quilles latérales. La chambre est constituée par l'espace, sous la coque, entre les paroies intérieures des quilles latérales, comprise entre le volet et le panneau articulé qui lui sert de bras de suspension. Les bords du volet et du panneau qui viennent affleurer les paroies intérieures des quilles latérales sont munis de languettes d'étanchéité qui sont plaquées sur ces paroies sous l'effet de la pression. La mise en pression dans la chambre déploie le panneau articulé et maintient le volet dans une position d'équilibre avec les forces extérieures dont celles exercées par la portance hydrostatique et dynamique. La variation de la pression dans les chambres avant et arrière modifie la position des volets et permet de régler l'assiette du navire. Sur le clapot, la chambre se comprime sur une crête ou se détend sur un creux, laisse le volet suivre constamment la vague avec un minimum de fuite du coussin d'air. According to a preferred embodiment the rear edge of the flap is retained at the hull by an articulated panel covering the entire width between the interior walls of the side pins. The room is made up of the space under the hull between the interior walls of the side skittles, between the flap and the hinged panel which serves as its suspension arm. The edges of the shutter and of the panel which come flush with the inner walls of the side pins are provided with sealing tongues which are pressed against these walls under the effect of pressure. The pressurization in the chamber deploys the articulated panel and maintains the flap in a position of equilibrium with the external forces including those exerted by the hydrostatic and dynamic lift. The variation of the pressure in the fore and aft chambers modifies the position of the flaps and makes it possible to adjust the trim of the ship. On the chop, the chamber compresses on a ridge or relaxes on a hollow, lets the shutter constantly follow the wave with a minimum of air cushion leakage.
Selon une première variante, les fermetures sont constituées d'éléments multiples juxtaposées les unes à côté des autres et munis à leurs bords communs de languettes qui sont plaquées entre elles par la pression et assurent l'étanchéité du coussin d'air.  According to a first variant, the closures are made up of multiple elements juxtaposed one beside the other and provided at their common edges with tongues which are pressed together by pressure and seal the air cushion.
Les dessins annexés illustrent l'invention :  The accompanying drawings illustrate the invention:
- La figure 1 représente une coupe longitudinale d'un navire à effet de surface muni de fermetures selon l'invention.  - Figure 1 shows a longitudinal section of a surface effect ship provided with closures according to the invention.
- La f igure 2 représente une vue frontale de ce navire .  - F igure 2 shows a front view of this ship.
- La figure 3 représente une vue arrière de ce navire.  - Figure 3 shows a rear view of this ship.
- La figure 4 représente une coupe de la fermeture avant.  - Figure 4 shows a section of the front closure.
- La figure 5 représente une coupe de la fermeture arrière.  - Figure 5 shows a section of the rear closure.
- La figure 6 représente une vue frontale d'une variante des fermetures.  - Figure 6 shows a front view of a variant of the closures.
Sur les figures 1, 2, 3, 4, 5, le navire comporte entre les quilles latérales (2), un coussin d'air (10), fermé à l'avant et à l'arrière par des volets rigides rectangulaires (3av) et (3ar), dont le bord supérieur avant est fixé à la coque (1) du navire par une charnière (5'av) et (3'ar). Les volets sont retenus à la coque par les panneaux (Aav) et (4ar) articulés autour des charnières (5av) et (5ar) couvrant toute la largeur entre les paroies intérieures des quilles latérales. A l'avant et à l'arriére, la chambre de suspension pneumatique (11) et (12) est constituée par l'espace, entre la coque et les quilles latérales, comprise entre le volet et le panneau articulé qui lui sert de bras de suspension. La pression dans les chambres est maintenue d'une manière autonome par les valves de régularisation (6av) et (6ar) à partir du système de compression (7). Les bords du volet et du panneau qui viennent affleurer les paroies des quilles latérales sont munis de languettes d'étanchéité (8) qui sont plaquées sur ces paroies sous l'effet de la pression. De même, les charnières sont munies de languettes d'étanchéité (8).  In FIGS. 1, 2, 3, 4, 5, the ship comprises between the side keels (2), an air cushion (10), closed at the front and at the rear by rigid rectangular flaps (3av ) and (3ar), the upper front edge of which is fixed to the hull (1) of the ship by a hinge (5'av) and (3'ar). The flaps are retained in the hull by the panels (Aav) and (4ar) articulated around the hinges (5av) and (5ar) covering the entire width between the interior walls of the side keels. At the front and at the rear, the air suspension chamber (11) and (12) is formed by the space, between the hull and the side pins, between the flap and the articulated panel which serves as its arm suspension. The pressure in the chambers is maintained autonomously by the regulation valves (6av) and (6ar) from the compression system (7). The edges of the flap and of the panel which come flush with the walls of the side pins are provided with sealing tongues (8) which are pressed against these walls under the effect of pressure. Likewise, the hinges are provided with sealing tongues (8).
La figure 6 montre une variante des fermetures qui sont constituées d'éléments multiples (3"av) juxtaposés les uns à côté des autres et munis à leurs bords communs de languettes (8") qui sont plaquées entre elles par la pression et assurent l'étanchéité du coussin d'air. FIG. 6 shows a variant of the closures which consist of multiple elements (3 "av) juxtaposed one beside the other and provided at their common edges with tabs (8") which are pressed together by pressure and seal the air cushion.
Les fermetures à suspension pneumatique selon l'invention sont particulièrement destinées aux navires à effet de surface à hautes performances.  The air suspension closures according to the invention are particularly intended for high performance surface effect vessels.

Claims

REVENDICATIONS
1- Fermetures du coussin d'air de navire à effet de surface caractérisées en ce qu'elles comportent des volets rigides avant (3av) et arrière (3ar) dont les bords arrières sont retenus à la coque par des panneaux articulés (4av) et (4ar) couvrant toute la largeur entre les paroies intérieures des quilles latérales, refermant ainsi les chambres de suspension pneumatique (llav) et (llar) derrière les volets, sous la coque et entre les paroies des quilles latérales. Les bords des volets et des panneaux qui viennent affleurer les paroies intérieures des quilles latérales, ainsi que les charnières sont munis de languettes d'étanchéité (8) et (8'). 1- Closures of the surface effect ship air cushion, characterized in that they comprise rigid front (3av) and rear (3ar) flaps, the rear edges of which are retained by the hull by hinged panels (4av) and (4ar) covering the entire width between the inner walls of the side skittles, thus closing the air suspension chambers (llav) and (llar) behind the flaps, under the hull and between the walls of the side skittles. The edges of the shutters and panels which are flush with the interior walls of the side skittles, as well as the hinges are provided with sealing tongues (8) and (8 ').
2- Fermetures selon la revendication 1 caractérisées en ce qu'elles sont constituées d'éléments multiples juxtaposés les uns à côté des autres et munis à leurs bords communs de languettes d'étanchéité (8") qui sont plaquées entre elles par la pression.  2- Closures according to claim 1 characterized in that they consist of multiple elements juxtaposed one next to the other and provided at their common edges with sealing tongues (8 ") which are pressed together by pressure.
PCT/FR1990/000345 1989-06-02 1990-05-16 Rigid air-cushion seals for surface action vessels WO1990014976A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR89/07352 1989-06-02
FR8907352A FR2647742B1 (en) 1989-06-02 1989-06-02 RIGID AIR SUSPENSION CLOSURES FOR SURFACE-EFFECT VESSELS

Publications (1)

Publication Number Publication Date
WO1990014976A1 true WO1990014976A1 (en) 1990-12-13

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Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FR1990/000345 WO1990014976A1 (en) 1989-06-02 1990-05-16 Rigid air-cushion seals for surface action vessels

Country Status (5)

Country Link
EP (1) EP0474715A1 (en)
JP (1) JPH04505434A (en)
AU (1) AU5742890A (en)
FR (1) FR2647742B1 (en)
WO (1) WO1990014976A1 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5222974A (en) * 1991-11-08 1993-06-29 Kensey Nash Corporation Hemostatic puncture closure system and method of use
US6090130A (en) * 1991-11-08 2000-07-18 Kensey Nash Corporation Hemostatic puncture closure system including blood vessel locator and method of use

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2696705A1 (en) * 1992-10-13 1994-04-15 De Bourbon Michel Pneumatic buoyancy structure for multi-hulled vessel - comprises three inflatable compartments of neoprene or PVC-coated fabric situated lengthwise in space between hulls
PL2915735T3 (en) * 2014-03-05 2017-01-31 Silverstream Technologies B.V. Air lubrication system and vessel comprising such a system.
NO347054B1 (en) * 2021-10-18 2023-05-02 Ses X Marine Tech As A flap damper device for damping of motions of a vessel flap relative to a hull of an air supported vessel, and a vessel with such a flap damper device

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146752A (en) * 1962-08-28 1964-09-01 Allen G Ford Captured air bubble vehicle
US4137987A (en) * 1975-11-17 1979-02-06 Rohr Industries, Inc. Stay supported membrane planing seal
US4422517A (en) * 1977-05-04 1983-12-27 Hammerschlag Peter G Bag-positioned hinged seals for air cushion vehicles
US4469334A (en) * 1982-07-13 1984-09-04 Le-Comte Holland B.V. Sealing system for the air cushion of an air-cushion vessel
FR2554403A1 (en) * 1983-11-07 1985-05-10 Textron Inc AIR CUSHION SEAL SYSTEM FOR SURFACE EFFECT VESSEL AND SHIP PROVIDED WITH SUCH A SEAL
GB2203109A (en) * 1987-03-23 1988-10-12 Textron Inc Air cushion vehicle stern seal

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3146752A (en) * 1962-08-28 1964-09-01 Allen G Ford Captured air bubble vehicle
US4137987A (en) * 1975-11-17 1979-02-06 Rohr Industries, Inc. Stay supported membrane planing seal
US4422517A (en) * 1977-05-04 1983-12-27 Hammerschlag Peter G Bag-positioned hinged seals for air cushion vehicles
US4469334A (en) * 1982-07-13 1984-09-04 Le-Comte Holland B.V. Sealing system for the air cushion of an air-cushion vessel
FR2554403A1 (en) * 1983-11-07 1985-05-10 Textron Inc AIR CUSHION SEAL SYSTEM FOR SURFACE EFFECT VESSEL AND SHIP PROVIDED WITH SUCH A SEAL
GB2203109A (en) * 1987-03-23 1988-10-12 Textron Inc Air cushion vehicle stern seal

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5222974A (en) * 1991-11-08 1993-06-29 Kensey Nash Corporation Hemostatic puncture closure system and method of use
US6090130A (en) * 1991-11-08 2000-07-18 Kensey Nash Corporation Hemostatic puncture closure system including blood vessel locator and method of use

Also Published As

Publication number Publication date
AU5742890A (en) 1991-01-07
JPH04505434A (en) 1992-09-24
FR2647742B1 (en) 1991-09-13
EP0474715A1 (en) 1992-03-18
FR2647742A1 (en) 1990-12-07

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