Ships – Submersible device – Having attitude control
Patent
1996-04-16
1998-02-03
Avila, Stephen
Ships
Submersible device
Having attitude control
114333, 114338, B63G 800
Patent
active
057132992
DESCRIPTION:
BRIEF SUMMARY
OBJECT OF THE INVENTION
The present invention relates to a submersible boat, in other words an aquatic vehicle capable of navigating both on the water surface and submerged and therefore, in addition to offering a performance similar to that of a conventional submarine, when used as a surface boat, its cabin for occupants lies entirely above the water as a classic boat.
BACKGROUND OF THE INVENTION
The very applicants hold a U.S. Pat. No. 8,703,322 disclosing a two-level mobile land-sea crawler capable of travelling on both dry land and in water, and when in water both on the surface and submerged, a fundamental characteristic in the latter respect being that diving was achieved dynamically with the assistance of fins which were suitably directed to force the mobile vehicle to dive due to its forward speed.
Whilst perfectly valid from a theoretical viewpoint, the solution used was in practice inconvenient in a number of ways, as follows:
The fact that the mobile vehicle is capable of diving only dynamically prevents the body from remaining static underwater, which could often be interesting or necessary.
The dynamic diving effect as such means that the diving effort required is substantial and that the energy consumed in so diving is therefore also substantial.
The very presence of the fins used to steer the mobile vehicle, projecting sideways from the same, poses difficulties.
Lastly, having been conceived as a vehicle capable of travelling on dry land, the mobile vehicle has a number of structural and design limitations that are far more significant than the scarce advantages derived from such possibility, for use of the mobile vehicle to travel on land is expected to be rare, almost negligible, as compared with its use in water.
SUMMARY OF THE INVENTION
Bearing in mind the above, the submersible boat subject of the present invention has been deprived of the possibility of travelling on land which has concurrently considerably enhanced its performance over that of the mobile vehicle subject of U.S. Pat. No. 8,703,322.
More specifically, in order to achieve the above, and in accordance with one of the characteristics of the invention, the submersible boat is structured as a submersible catamaran and therefore when it navigates as a surface boat, the cabin for occupants lies entirely above water, as on a conventional catamaran, and unlike conventional submarines where the cabin for occupants is submerged at all times, even when it does not navigate underwater.
In accordance with another characteristic of the invention, the two side floats of the boat which support the cabin aforesaid not only serve such purpose and house certain of the boat's accessories, as described further on, but carry a number of ballast tanks serving a twofold purpose, namely on the one hand approximating the boat's buoyancy rate to almost zero at the time of diving and thereby expediting this operation, in other words enabling diving to be quicker and dynamic, and on the other hand suitably increasing the ballast after the dive in order that the boat may stop its forward travel and remain stable at the selected depth.
In accordance with another characteristic of the invention, the boat steering fins are arranged between and below its two floats, which expedites docking operations since they do not constitute prominent members with respect to the overall geometry of the boat. These fins have moreover been designed to be laterally split into two halves in order not only to allow the boat to be controlled during dynamic diving and rising but further to serve as members controlling rolling and pitching.
Other characteristics of the invention lie in the boat's propulsion system, cooling system, ballast system, emergency and service pneumatic system and steering system as detailed hereinafter and in accordance with the contents of the attached set of claims.
DESCRIPTION OF THE DRAWINGS
In order to provide a fuller description and contribute to the complete understanding of the characteristics of this invention, a set of drawings
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Gabler, Ulrich "Construccion De Submarinos", 1982, Ed. S. Martin. Madrid-Espana, pp. 65-77, 87-93, 100.
A Group of Authorities, "Marine Eng.", 1971, Ed. Sname; New York, p. 698.
Lopez Ibor Alino Jose
Perez Sobrino Mariano
Roy Couto Javier
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