• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Cooling system for landing craft (1), which cools the at least one engine (4) of the landing craft (1) and which comprises a series of conduits (5) circulation of the coolant and at least one pump (6), and which additionally comprises: - at least one aft intake (7) of coolant inlet, located at the stern (2) of the landing craft (1), - at least one side intake (8) of coolant inlet located on each side (3, 3 ') of the landing craft (1), and - at least one valve (9) allowing the passage of the coolant from at least one aft intake (7), from at least one side intake (8), or from at least one aft intake (7) and at minus one side shot (8) simultaneously. (Machine-translation by Google Translate, not legally binding)
    公开号:ES2645503A1
    申请号:ES201630750
    申请日:2016-06-03
    公开日:2017-12-05
    发明作者:José Luis Fernández González；Arturo MARTÍNEZ GONZÁLEZ
    申请人:Navantia S A；NAVANTIA SA；
    IPC主号:
    专利说明:

    Landing boat cooling system Field of the Invention The present invention relates to a cooling system for landing craft, especially for a boat used in amphibious operations carried out on the beaches for the landing of troops and equipment. 5
    Background of the invention
    The applicant has developed and manufactured several amphibious landing craft of mechanized means (“Landing Craft Mechanized”, LCM), whose main mission is to place troops and landing material on the beach from amphibious assault ships. An example of these landing craft is the LCM-1E, which improved the characteristics of traditional LCM-8 boats in terms of speed, low-speed maneuverability, cargo deck space and ease of handling, among others.
    The LCM-1E are landing boats of high performance, mainly oriented to offer high speed, great maneuverability, high load capacity and a large capacity for vehicle transfer. These boats broke with the philosophy existing until then of landing operations, so it had to face a new scenario of design of the boats. The high power required by the new boat to meet the operational requirements should therefore be compatible with amphibious operations (beach operations).
    A fundamental element to consider in landing craft and in the 20 amphibious vehicles is the cooling system used for engines.
    Document ES 2289280 T3 ("Refrigeration systems for amphibious vehicles") discloses a cooling system comprising coolant pipes for the circulation of the coolant around the engine, an air inlet, a first heat exchanger connected to the ducts and arranged to allow the passage of air 25 through the air inlet through the first exchanger to cool the coolant circulating around the engine, a water inlet on the bottom side of the hull, and a second heat exchanger connected to the ducts and arranged to allow the passage of external water through the entry of water from the outside of the helmet into the interior of the helmet
    and from there through the second exchanger to cool the refrigerant, the water inlet being located within the two rear thirds of the hull length. This document thus discloses a double amphibious vehicle cooling system, with a water inlet and another air inlet.
    Document US4767367A discloses a vessel with a series of elements that ensure cooling water intake even in cases where it is sailing at high speed. For this, structural elements are arranged around the drive axes, and two different water intakes are included. These water intakes are controlled by valves, and ensure a continuous supply of cooling water, since each of them acts according to the direction in which the vessel moves.
    Document US4579090A discloses a typical amphibious vehicle cooling system, especially those whose greatest movement is overland. The cooling system consists of an air-cooled radiator. When the vehicle moves through the water, the fan associated with the cooling system is disconnected and it becomes cooled by water from a tank and a water intake by filter.
    Document KR20130109797A discloses a refrigeration system based on seawater used in a vessel. The system incorporates a pressure sensor and a temperature sensor to keep the seawater pressure refrigerated and measure its temperature. The objective is to keep the load cooling parameters constant and thus optimize the cooling system.
    Document US6808430B1 discloses a small capacity amphibious vehicle that moves preferably on land. Its cooling is done by a radiator mounted on the front, with a cooling inlet and a cooling outlet. There is a passage through which cooling water circulates as a cold focus of the system. 25
    Document US5690046A is an example of a small capacity amphibious vehicle that has an ambient air cooling system when the vehicle moves on land, and an external water cooling system when the vehicle moves through water.
    JPH04321412A discloses a cooling system for an amphibious vehicle whose engine cooling system is based on an exchanger with seawater.
    The high propulsive power installed in the boats requires a high cooling flow, which is reduced when amphibious operations are carried out on the beach, due to the shallow water depth and the amount of sand in suspension. 5
    Therefore, there is a need to find a solution to the problems of lack of cooling when the landing craft is on the beach.
    Summary of the invention
    Thus, the object of the present invention is to provide a cooling system for a landing craft that resolves the aforementioned drawbacks, providing a sufficient amount of water to the cooling system that allows continuous cooling of the engines.
    The present invention provides a cooling system for landing craft, which cools the at least one driving motor of the landing craft and which comprises a series of coolant circulation lines and at least one pump and, in addition:
    - at least one intake stern of coolant, located at the stern of the landing craft,
    - at least one inlet side of coolant located on each side of the landing craft, and 20
    - at least one valve that allows the coolant to pass from at least one stern socket, from at least one side outlet or from at least one stern socket and at least one side outlet simultaneously.
    By means of the cooling system of the invention, a correct cooling of the engines in the landing operations is achieved, even when there is strong swell. 25
    In addition, the refrigeration system of the invention allows controlling the sockets that are desired to be open in order to be able to perform the desired operations in each situation with the landing craft guaranteeing proper cooling.
    Brief description of the drawings
    The object of the present invention will be illustrated in a non-limiting manner, with reference to the accompanying drawings, in which:
    Figure 1 shows a partial diagram of the cooling system of the landing craft of the invention.
    Figure 2 shows a cross section of the landing craft of the invention.
    Figure 3 shows an enlarged detail of Figure 2, with a sea outlet sideways. 10
    Figure 4 shows an exploded view of a side sea tap.
    Figure 5 shows an aft sea tap.
    Detailed description of the invention
    In order to achieve greater operability in the operations of beached, the sea intakes of the cooling service of the main engines 4 have been located on the sides 3, 15 3 'instead of the funds. With this new configuration, the entry effect into the sand / sludge circuit existing on the beach is minimized when the vessel maneuvers in beached operations.
    In order to be operative in high-speed navigations, the suction sockets 11 have been installed with suction means 11 in order to favor aspiration. 20 In addition, they have a suitable grid that minimizes the aspirations of sand or mud in beach operations.
    Additionally and for greater safety, additional shots have been incorporated in stern 2, the area of greater draft, to operate with them alternately in beached with bad sea.
    This location has proved to be ideal in the successive tests carried out, given the small proportion of sand and sludge in its vicinity.
    In beached operations, phenomena of aspiration of stones occur through the conduits of the waterjets, which occasionally make the thrusters inoperative.
    To minimize these phenomena, grilles have been installed in the waterjets' ducts, 5 which make it impossible for stones to access the thrusters, but which somewhat penalize the speed of the boat. This decrease in speed is due to a lower performance of the thrusters caused by the alteration of the flow inside the duct, which the said grid causes.
    Stern sea intakes present difficulties in these operations: 10
    - Landing with waves, since the valleys of the waves expose the sea intakes, and
    - High speed navigation, since the flow of water makes a “spoon” aft that empties the stern and therefore leaves the sea intakes in the air.
    These situations would leave the engines 4 without cooling, causing their immediate stop 15.
    The impossibility of finding an effective means for all the operations forced to look for individual solutions and to operate them from the bridge of government in function of the operative necessity.
    The solutions were: 20
    a) High speed navigation - sea side with suction “shell” to prevent high speed from lowering the cooling system
    b) Amphibious operations on the beach - sea stern aft with wave compensation tank.
    c) System integration - panel in the bridge that allows the cooling system to change depending on the external and operating conditions.
    In figure 1 a landing craft 1 and the cooling system of the invention are partially and schematically depicted. The figure partially represents a side 3 and the stern 2 of the landing craft 1. In said figure 1 a propellant motor 4 is observed which is cooled by the cooling system of the invention. A series of ducts 5 contain the coolant, which circulates inside it, and which is driven by a pump 6.
    A stern 7 of coolant inlet is observed, which comprises a coolant accumulator tank 10, also called a 10 stern compensation tank.
    There is also a side intake 8 of the coolant inlet and a valve 9 that allows the coolant to pass from the stern socket 7, from the side socket 8, or from the stern socket 7 and the side socket 8 simultaneously.
    The continuation from the bottom of Figure 1 could be basically symmetrical to said figure 15, with a side socket 8 and a stern socket 7 located symmetrically.
    Figure 2 shows a cross-section of the landing craft 1, where the sides 3, 3 ’, the side shots 8 and, inside, the propeller engines 4 are appreciated.
    Figure 3 shows a side shot 8 of Figure 2 in an enlarged view in greater detail. It is noted that it comprises a suction means 11 of the coolant which, in said embodiment, can take the form of a suction shell, shown in greater detail in Figure 4. These suction shells 11 for high speed in the side intakes 8 are illustrated in Figure 4, and comprise a front closure cover 14 and a lower closure lid 15. The assembly can also comprise a perforated sheet 16, and a synthetic gasket 17 and a support frame 18, for fix it to the corresponding side.
    The compensation tanks 10 in stern 2 of Figure 5 are designed so that the potential wave energy will fill it with sufficient capacity to give the necessary cooling of the motors 4 to the next wave train.
    The valve 9 can be a remote control valve from the steering bridge that allows the change between: 5
    a) Stern cooling
    b) Cooling on the side
    c) Combined cooling
    All depending on the external operating conditions.
    Although embodiments of the invention have been described and represented, it is clear that modifications within its scope can be introduced therein, which should not be considered limited to said embodiments, but only to the content of the following claims.
    权利要求:
    Claims (8)
    [1]
    1.- Cooling system for landing craft (1), which cools the at least one driving motor (4) of the landing craft (1) and comprising a series of conduits (5) for the circulation of the cooling liquid and at the less a pump (6), characterized in that it additionally comprises: 5
    - at least one stern intake (7) of the coolant inlet, located at the stern (2) of the landing craft (1),
    - at least one side intake (8) of the coolant inlet located on each side (3, 3 ’) of the landing craft (1), and
    - at least one valve (9) allowing the passage of the coolant from at least 10 a stern socket (7), from at least one side outlet (8), or from at least one stern socket (7) and at least one side outlet (8) simultaneously.
    [2]
    2. Cooling system for landing craft (1), according to claim 1, wherein the at least one stern intake (7) comprises an accumulator tank (10) of cooling liquid. fifteen
    [3]
    3. Cooling system for landing craft (1), according to any of the preceding claims, wherein each side outlet (8) comprises a suction means (11) of the cooling liquid.
    [4]
    4. Cooling system for landing craft (1), according to any of the preceding claims, wherein each side outlet (8) comprises a rack. twenty
    [5]
    5. Cooling system for landing craft (1), according to any of the preceding claims, wherein the coolant circulation lines (5) incorporate grilles.
    [6]
    6. Cooling system for landing craft (1), according to any of the preceding claims, wherein the valve (9) is a remote control valve. 25
    [7]
    7. Cooling system for landing craft (1), according to any of the preceding claims, wherein the coolant is seawater.
    [8]
    8. Landing craft (1), comprising a cooling system of any of claims 1 to 7.
     5
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3466731B1|2020-02-12|
    EP3466731A1|2019-04-10|
    WO2017207854A1|2017-12-07|
    ES2791354T3|2020-11-04|
    PT3466731T|2020-05-18|
    ES2645503B2|2018-06-08|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US2390557A|1944-03-15|1945-12-11|Arthur J Scaife|Waterproofed combat vehicle|
    US3266591A|1963-07-17|1966-08-16|Kaiser Jeep Corp|Military vehicle|
    AU9006691A|1990-12-28|1992-07-02|Isuzu Motors Limited|Amphibian motor vehicle|
    WO2005115774A2|2004-05-24|2005-12-08|Gibbs Technologies Limited|A cooling system of an amphibious vehicle|
    IT245868Y1|1998-07-09|2002-03-26|Aris Spa|AUXILIARY GROUP OF FLOATING, PROPULSION AND GOVERNMENT GROUND TRUCK AND / OR ROTATED PERVEICLES, PARTICULARLY VEHICLES|
    US6808430B1|2003-04-11|2004-10-26|J. David March|Amphibious vehicle|
    US7168382B2|2004-07-07|2007-01-30|Burg Donald E|Beachable high speed marine vehicle|
    法律状态:
    2018-06-08| FG2A| Definitive protection|Ref document number: 2645503 Country of ref document: ES Kind code of ref document: B2 Effective date: 20180608 |
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    优先权:
    申请号 | 申请日 | 专利标题
    ES201630750A|ES2645503B2|2016-06-03|2016-06-03|Landing boat cooling system|ES201630750A| ES2645503B2|2016-06-03|2016-06-03|Landing boat cooling system|
    EP17734377.9A| EP3466731B1|2016-06-03|2017-05-31|Coolant system for landing craft|
    ES17734377T| ES2791354T3|2016-06-03|2017-05-31|Landing craft cooling system|
    PCT/ES2017/070382| WO2017207854A1|2016-06-03|2017-05-31|Coolant system for landing craft|
    PT177343779T| PT3466731T|2016-06-03|2017-05-31|Coolant system for landing craft|
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