Method of operating submerged submarines and submarine

Details Method of operating submerged submarines and submarine Method of operating submerged submarines and submarine

1990-11-15

1992-09-01

Basinger, Sherman

Ships

Warships

Concealment

114270, 114312, 367 1, B63G 834

Patent

active

051430070

DESCRIPTION:

BRIEF SUMMARY
The invention relates to a method to operate submerged submarines, wherein cooling water is heated up during operation and emitted to the surrounding sea.
The invention is further related to a submarine heating cooling water during operation and emitting it to the surrounding sea.
This application is related to the following co-pending U.S. applications Ser. Nos. filed Nov. 15, 1990: SOURCE, IN PARTICULAR OF A SUBMERGED SUBMARINE, AND SUBMARINE", Ser. No. 614,300, filed Nov. 15, 1990, corresponding to International Application PCT/DE 90/00197; ACOUSTIC EMISSION FROM SUBMERGED SUBMARINES", Ser. No. 602,310, filed Nov. 15, 1990, corresponding to International Application PCT/DE 90/00192; SUBMARINES", Ser. No. 615,423, filed Nov. 15, 1990, corresponding to International Application PCT/DE 90/00193; OPTICAL OBSERVATION SYSTEM", Ser. No. 602,319 filed Nov. 15, 1990, corresponding to International Application PCT/DE 90/00196; ACOUSTIC EMISSION FROM SUBMERGED SUBMARINES", Ser. No. 614,200, filed Nov. 15, 1990, corresponding to International Application PCT/DE 90/00195; and OPERATING SUBMERGED SUBMARINES".
In particular, the submarines should be camouflaged using the invention.
It is known in the art, to locate submerged submarines in different ways. In doing this, one distinguishes between so-called "active" and "passive" localization methods. In the "active localization methods", a search signal is emitted from on board the searching vehicle, for example a frigate, e.g. an ultrasonic signal and the presence as well as, if need be, the position of the submerged submarine is detected using the signals reflected by the submarine. On the other hand, the "passive" localization methods use a perturbation of the environment which is caused by the submarine in its surroundings. For example, this perturbation of the environment can consist of a perturbation of the earth's magnetic field or in superposition of the natural environmental noise upon noise characteristic of the submarine.
Each of the localization methods mentioned above has its own specific disadvantages. A common disadvantage of these methods is the fact that localizing submerged submarines becomes more difficult the larger the distance between submarine and search vehicle. It is well known in the art, to locate submarines from on board aircraft by towing an extremely sensitive magnetic probe (nuclear magnetic probe) on a long line behind the aircraft, whereby the perturbations of the earth's magnetic field caused by the submarine are detected. However, also this localization method soon reaches its limits, actually all the more, the more modern submarines of non-magnetic steel are manufactured. Moreover, a reasonably precise localization of the submerged submarine is also only possible with this method after flying several times cross-wise over a certain region of the sea.
Since submarines are driven by motors, a certain amount of lost heat is always produced, whose amount depends on the type of propulsion of the submarine and on the propulsion power actually used, and so on.
In general, in order to cool the drive system, submarines are equipped with a cooling system whereby the lost heat of the drive system is emitted to the surrounding sea water. For example, it is known in the art, to direct conduits of an internal cooling circuit of the drive along outside the outer hull of the submarine, in order that during navigating the submarine the surrounding cold sea water sweeps along these conduits and draws heat off these conduits.
Moreover, other elements of the submarine, in particular an indoor heating and such, produce a considerable heat loss which is given off via the entire outer hull of the submarine to the surrounding sea water.
A small submarine produces, for example, at cruising speed heat loss on the order of 100 kW, so that about 2 cubic meters of warm cooling water are generated per hour if a temperature increase of 50 degrees Centigrade in the cooling water is tolerated. In large submarines, in particular in those with nuclear propulsion, the h

REFERENCES:
patent: 2395944 (1946-03-01), Smith
patent: 3483132 (1969-12-01), Bernd
patent: 3507086 (1970-04-01), McGann et al.
patent: 3771115 (1973-11-01), McLinden
patent: 3841219 (1974-10-01), Schillreff
patent: 4969399 (1990-11-01), Kish

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