Abstract:
A system for providing mechanical and electrical power in a vehicle or other engine-driven platform includes a first engine having a first power rating and a second engine having a second power rating that is less than the first power rating. The system further includes a first generator (for example, an alternator) for generating electrical power for a load operation (such as vehicle propulsion), and a second generator (for example, a DFIG) for generating fixed frequency electrical power; both generators are operatively connected to and powered by the first and/or second engines. The first and/or second engines may be selected to power the first generator for generating power for vehicle propulsion or another load operation depending upon situational power requirements of the engine-driven platform.
Abstract:
A method and a system for controlling operation of a propulsion system of a waterborne vessel, comprising adjusting recovery of energy generated from the propulsion system to maintain position of the waterborne vessel in response to at least an indication of vessel position. The concepts herein can be applied to a first vessel being moved/positioned by a second vessel such as a tug boat.
Abstract:
An anchor handling/tug/supply (AHTS ) vessel is employed to engage conductor casings with the seafloor. The conductor casings initially penetrate the seafloor to a first depth under their own weight. The conductor casings may optimally be further engaged with the seafloor to a second depth by the application of suction to the interiors thereof or by the use of a drop hammer. The conductor casings are driven to grade by a hydraulic pile driving hammer deployed from the deck of the AHTS vessel the previously deployed conductor casings to grade before being recovered to the desk of the AHTS vessels.
Abstract:
A two-part vessel for use in oil transport in waters where ice may occur comprises a first part in the form of a barge part (41) containing a number of loading tanks (14) and having a bow portion (43) having a submerged receiving space (5) for a mooring and loading buoy, and a second part in the form of a propulsion part (42) having a stern portion (54) which is designed for breaking of ice, the second part (42) with its forward end (48) being arranged for connection to the stern portion (44) of the barge part (41). The propulsion part (42) preferably is provided with propulsion equipment which is suitable for operation of the propulsion part in pulling as well as pushing mode. Further, both the forward end (48) of the propulsion part (42) and the bow portion (43) of the barge part (41) preferably are designed for breaking of ice.
Abstract:
Изобретение относится к области судостроения, в частности к судам для сборки загрязнения с поверхности воды. Заявляемое судно- док включает буксирное (5) отделение для размещения судов буксиров (1 1) и технологическое (4) отделение. Технологическое (4) отделение выполнено в виде ангара, в нижней части которого расположен центральный (17) канал, по его верхним границам с симметричным расположением вправо и влево в сторону корпуса (1) расположены полки-уступы (8), на которых размещено технологическое оборудование для переработки водно-нефтяной эмульсии. Между бортами корпуса су дна- дока и боковыми (15) стенками центрального (17) канала размещены емкости для сбора нефтяной эмульсии. Центральный (17) канал технологического отделения снабжен, по меньшей мере, двумя переборками (10), в которых выполнены герметично закрывающиеся отверстия, расположенные на разных уровнях. Заграждение выполнено в виде секционного сетного (22) рукава, заполненного эластичным пористым адсорбентом, и снабженного положительной (24) плавучестью в верхней кромке сложенного вдвое сетного полотна, за счет чего образуется сетной рукав, и отрицательной (25) плавучестью в нижней его кромке. Судно-док может использоваться для сбора нефти в открытом море, оно не только оперативно перемещает средства для сбора нефти, но и принимает на себя значительное количество нефти.
Abstract:
A method and device for coupling a vessel with a structure or another vessel, typically for coupling a powered propelling vessel with a barge, in which at least one coupling half on one of the vessels is brought together with and releasably coupled to a complementary coupling half on the other vessel. The coupling half is made to follow the movements of the complementary coupling half by subjecting the movable coupling half to a limited force directed towards the complementary coupling half, in a way such that the movable coupling half yields to a greater contact force between the coupling halves, whereupon the movable coupling half is still subjected to a limited force that is varied in opposite phase to the intermovement of the vessels, and which is increased until the intermovement of the vessels has been reduced to an acceptable magnitude, or possibly to zero.
Abstract:
A marine craft for surface level operation comprises a body, at least one propulsion drive coupled to the body and a controller carried by the body and configured to control operation of the at least one propulsion drive. The marine craft further comprises a wireless transceiver communicably coupled to the controller to facilitate wireless communication between the controller and a remote computing device and at least one coupler to removably couple the craft to a vessel, wherein the marine craft is configured for unmanned surface level operation to couple to the vessel and decouple from the vessel under control of the controller.
Abstract:
A hybrid propulsion and energy management system for use in marine vessels and other variable demand propulsion applications monitors and draws energy from various energy sources dynamically to implement multiple operating modes and provide efficient system operation across a range of propulsive demands, altering the operation and output of various energy sources in response to propulsive load demands, hotel loads and auxiliary energy demands. The propulsion system incorporates at least two propulsive sources, including at least one main propulsive engine and at least one motor-generator unit arranged to drive a common output shaft, and the energy management system dynamically shifts operation of each of the two sources to satisfy propulsive demands. The main propulsive engine and the motor-generator unit are capable of driving the common output shaft both independently and simultaneously. The motor-generator unit(s) are available to operate either as a motor driving the output shaft or as a generator supplying energy to the energy distribution system.