Diverse Engine Means Patents (Class 440/3)
  • Patent number: 10892700
    Abstract: The present disclosure is directed to an electric generator and motor transmission system that is capable of operating with high energy, wide operating range and extremely variable torque and RPM conditions. In accordance with various embodiments, the disclosed system is operable to: dynamically change the output “size” of the motor/generator by modularly engaging and disengaging rotor/stator sets as power demands increase or decrease; activate one stator or another within the rotor/stator sets as torque/RPM or amperage/voltage requirements change; and/or change from parallel to series winding configurations or the reverse through sets of 2, 4, 6 or more parallel, three-phase, non-twisted coil windings with switchable separated center tap to efficiently meet torque/RPM or amperage/voltage requirements.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: January 12, 2021
    Assignee: Falcon Power, LLC
    Inventors: James L. Bailey, Harley C. McDonald
  • Patent number: 10879828
    Abstract: A motor/generator/transmission system includes: an axle; a stator ring having a plurality of stator coils disposed around the periphery of the stator ring, wherein each phase of the plurality of stator coils includes a respective set of multiple parallel non-twisted wires separated at the center tap with electronic switches for connecting the parallel non-twisted wires of each phase of the stator coils all in series, all in parallel, or in a combination of series and parallel; a rotor support structure coupled to the axle; a first rotor ring and a second rotor ring each having an axis of rotation coincident with the axis of rotation of the axle, at least one of the first rotor ring or the second rotor ring being slidably coupled to the rotor support structure and configured to translate along the rotor support structure in a first axial direction or in a second axial direction.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: December 29, 2020
    Assignee: Falcon Power, LLC
    Inventors: Harley C. McDonald, James L. Bailey, Matthew C. McDonald
  • Patent number: 10833619
    Abstract: A motor/generator/transmission system includes: an axle; a stator ring having a plurality of stator coils disposed around the periphery of the stator ring, wherein each phase of the plurality of stator coils includes a respective set of multiple parallel non-twisted wires separated at the center tap with electronic switches for connecting the parallel non-twisted wires of each phase of the stator coils all in series, all in parallel, or in a combination of series and parallel; a rotor support structure coupled to the axle; a first rotor ring and a second rotor ring each having an axis of rotation coincident with the axis of rotation of the axle, at least one of the first rotor ring or the second rotor ring being slidably coupled to the rotor support structure and configured to translate along the rotor support structure in a first axial direction or in a second axial direction.
    Type: Grant
    Filed: August 22, 2018
    Date of Patent: November 10, 2020
    Assignee: Falcon Power, LLC
    Inventors: Harley C. McDonald, James L. Bailey, Matthew C. McDonald
  • Patent number: 10833618
    Abstract: The present disclosure is directed to an electric generator and motor transmission system that is capable of operating with high energy, wide operating range and extremely variable torque and RPM conditions. In accordance with various embodiments, the disclosed system is operable to: dynamically change the output “size” of the motor/generator by modularly engaging and disengaging rotor/stator sets as power demands increase or decrease; activate one stator or another within the rotor/stator sets as torque/RPM or amperage/voltage requirements change; and/or change from parallel to series winding configurations or the reverse through sets of 2, 4, 6 or more parallel, three-phase, non-twisted coil windings with switchable separated center tap to efficiently meet torque/RPM or amperage/voltage requirements.
    Type: Grant
    Filed: July 2, 2018
    Date of Patent: November 10, 2020
    Assignee: Falcon Power, LLC
    Inventors: James L. Bailey, Harley C. McDonald
  • Patent number: 10780963
    Abstract: A thruster for propelling a watercraft comprises at least one propeller on a rotatable propeller shaft and a motor for driving the propeller shaft through a drive arrangement, particularly a drive arrangement comprising a rotatable drive shaft and a coupling arrangement arranged between the drive shaft and an output shaft of the motor for coupling the drive shaft to the output shaft of the motor. The motor is a permanent magnet motor, the stator body of the motor being provided with a recess surrounding at least a part of the output shaft of the motor, and the coupling arrangement being at least partially located inside the recess so that a configuration having minimal constructional height is obtained.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: September 22, 2020
    Assignee: VETH PROPULSION B.V.
    Inventors: Teunis Terlouw, Marco Gerritt Huisman, Hendrik Alexander Veth
  • Patent number: 10723425
    Abstract: A submarine drive system of a submarine, having a drive shaft, a drive propeller coupled to the drive shaft (2), and an electric motor for driving the drive shaft. A main drive having at least one first electric motor is designed for full-load operation and is or can be coupled to the drive shaft on the drive side, and an additional drive having at least one second electric motor is designed for part-load operation for creep operation or submerged operation of the submarine and likewise is or can be coupled to the drive shaft on the drive side.
    Type: Grant
    Filed: April 11, 2017
    Date of Patent: July 28, 2020
    Assignee: RENK Aktiengesellschaft
    Inventors: Burkhard Pinnekamp, Dietrich Wittekind, Thomas Schmidbauer, Bernhard Vollmer, Tobias Kleinheinz, Franz Hoppe
  • Patent number: 10661875
    Abstract: Hybrid boat comprising an internal combustion engine provided with a reversing device to allow at least one condition of forward movement and one of reverse movement of the boat, transmission means connected between said reversing device and a propeller or impeller, wherein said transmission means comprise a transfer box having a first inlet, a second inlet and a single outlet, and a first drive shaft interposed between said reversing device and said first inlet and a second drive shaft interposed between said single outlet and said propeller or impeller, and an electric motor operatively connected with said second inlet, wherein said transfer box comprises means for selectively connecting said internal combustion engine and/or said electric motor with said single outlet.
    Type: Grant
    Filed: July 11, 2017
    Date of Patent: May 26, 2020
    Assignee: FPT INDUSTRIAL S.P.A.
    Inventors: Francesco Bellio, Massimiliano Modica, Roberto Rossi, Alessandro Bernardini
  • Patent number: 10472037
    Abstract: Disclosed is a method of decreasing pressure fluctuation induced on a surface of a hull due to propeller cavitation by adjusting a relative rotation angle of propellers of a twin-propeller ship.
    Type: Grant
    Filed: July 3, 2017
    Date of Patent: November 12, 2019
    Assignee: KOREA INSTITUTE OF OCEAN SCIENCE & TECHNOLOGY
    Inventors: Cheol Soo Park, Gun Do Kim, Youngha Park
  • Patent number: 10046651
    Abstract: An energy management strategy for boats and ships is provided. The aforementioned strategy comprises a strategy for low-load conditions and a strategy for high-load conditions, specifically for the sailing conditions of boats and ships. The output and distribution of energy are dynamically adjusted in accordance with commands, tides, time, locations, weather, hydrologic conditions and other factors may impact the sailing, in order to optimize the energy efficiency of boats and ships.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: August 14, 2018
    Assignee: SHIP AND OCEAN INDUSTRIES R&D CENTER
    Inventors: Chih-Hung Lin, Hung-Hsi Lin, Sheng-Hua Chen, Jen-Fu Tsai, Hsiao-Yu Hsu, Shean-Kwang Chou, Kai-Ping Hsu
  • Patent number: 9550556
    Abstract: A power system for dynamic positioning of a vessel. The power system reduces fuel consumption, carbon buildup deposits and the risk of cylinder bore glazing while in combustion engine driven generators and provides an adequate protection against blackouts. The power system includes first and second combustion engine driven generators, a battery unit, and a converter unit arranged to provide power to the vessel from the battery unit. A first operational state of the power system in which the first combustion engine driven generator is arranged to deliver power to the vessel, and a second operational state, in which the first generator is subject to a fault, the second combustion engine driven generator arranged to deliver power to the vessel, and the converter unit is arranged to deliver power to the vessel during transition between the states.
    Type: Grant
    Filed: January 15, 2014
    Date of Patent: January 24, 2017
    Assignee: ABB AS
    Inventor: Louis Kennedy
  • Patent number: 9315274
    Abstract: A method to optimize resources needed to continue flight if at least one main engine is lost, by relieving a propulsion system that has remained operative of all or some of non-propulsive energy demands, by additional generation of non-propulsive power, operating continuously. The method uses a GPP unit that operates constantly in flight while taking up some of nominal total non-propulsive power of the aircraft, to supply increased non-propulsive power almost instantaneously, based on at least three respective emergency regimes at a time of engine failure. A control and monitoring function of the GPP calculates elapsed time for each emergency regime, and informs a data processing unit thereof, while emitting an alarm if operating periods allocated to each emergency regime are exceeded, and the emergency function adjusts non-propulsive power demands made by the aircraft between main engines and the unit GPP either automatically or on orders of a pilot.
    Type: Grant
    Filed: November 23, 2012
    Date of Patent: April 19, 2016
    Assignee: TURBOMECA
    Inventor: Jean-Michel Presse
  • Patent number: 9255664
    Abstract: A system in one embodiment includes a detection unit, a boil-off auxiliary power unit, and a controller. The detection unit is configured to detect a characteristic of a boil-off gas stream from a cryotank configured to hold a cryogenic fluid. The boil-off auxiliary power unit is configured to receive the boil-off gas stream and use the boil-off gas stream to provide auxiliary power to a vehicle system. The controller is configured to acquire information from the detection unit corresponding to the characteristic; determine, using the information acquired from the detection unit, an available boil-off auxiliary energy that is available from the boil-off auxiliary power unit; determine a mode of operation of the vehicle system; determine a required auxiliary energy for the vehicle system; and to operate the auxiliary power unit based on the available boil-off auxiliary energy, the mode of operation, and the required auxiliary energy.
    Type: Grant
    Filed: December 24, 2012
    Date of Patent: February 9, 2016
    Assignee: General Electric Company
    Inventors: William Dwight Gerstler, Laura Michele Hudy, Chiranjeev Kalra
  • Patent number: 9096295
    Abstract: An azimuthing drive system is provided for marine vessels. The azimuthing drive system includes a propulsion pod that houses a propulsor, which is configured to rotate about a first axis and to be driven by a first shaft generally orthogonal to the first axis. The propulsion pod is configured to swivel about the first shaft. The drive system also includes a gearbox connected to drive the first shaft, a diesel engine connected to drive the gearbox via a second shaft, and an electric motor connected to drive the first shaft via the gearbox or directly, whereby propulsion loads are shared between the diesel engine and the electric motor.
    Type: Grant
    Filed: December 31, 2012
    Date of Patent: August 4, 2015
    Assignee: General Electric Company
    Inventors: Paul Robert Gemin, Herman Lucas Norbert Wiegman
  • Patent number: 9028285
    Abstract: A hybrid marine drivetrain for a watercraft, the drivetrain including a driveshaft for driving a propulsion device of the watercraft, an internal combustion engine for driving the driveshaft, a motor for driving the driveshaft, a storage unit for storing energy in a form suitable for operating the motor, and a generator driven by the internal combustion engine for generating energy to power the motor, wherein a drive output of the motor is in direct driving connection with the driveshaft, a drive output of the internal combustion engine is in direct driving connection with a rotor of the generator, and a clutch is provided to selectively couple/decouple drive from the internal combustion engine to/from the driveshaft.
    Type: Grant
    Filed: August 28, 2009
    Date of Patent: May 12, 2015
    Assignee: NT Consulting International Pty Limited
    Inventor: Richard Terrence Tamba
  • Patent number: 8992274
    Abstract: A hybrid propulsion system for a marine vessel having a first marine propulsor that propels the marine vessel, a first internal combustion engine that selectively powers the first marine propulsor, and a first electric motor that selectively powers the first marine propulsor. The system also has first and second user input devices and a control circuit that controls operation of the system in at least a first control mode and a second control mode. In the first control mode, the control circuit controls operation of both the first internal combustion engine and the first electric motor based upon actuation of the first user input device. In the second control mode, the control circuit controls operation of the first internal combustion engine based upon actuation of the first user input device and the control circuit controls operation of the first electric motor based upon actuation of the second user input device.
    Type: Grant
    Filed: June 15, 2012
    Date of Patent: March 31, 2015
    Assignee: Brunswick Corporation
    Inventors: Aaron J. Ward, Brett J. McNalley
  • Patent number: 8845369
    Abstract: A vessel includes a first propulsion mechanism, at least one second propulsion mechanism, and a hull. The first propulsion mechanism is arranged to generate thrust by an internal combustion engine. The second propulsion mechanism is arranged to generate thrust by an electric motor. The first propulsion mechanism and the second propulsion mechanism are disposed in the hull. The first propulsion mechanism and the second propulsion mechanism are mutually independent. A direction of the thrust generated by the first propulsion mechanism and a direction of the thrust generated by the at least one second propulsion mechanism are the same as each other.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: September 30, 2014
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Susumu Shibayama
  • Patent number: 8795008
    Abstract: A hybrid power device for a marine vehicle is provided that has two hybrid prime movers, an electric motor and a combustion engine, that distribute power, for example torque, to a single or dual propulsor, such as surface drives with propellers. The prime movers can apply power singly or in unison, but maintain substantially optimum propulsive efficiency in all cases. The power outputs of the prime movers are in communication with a power transmitting device such as a gear box that may combine the power outputs to drive a single propulsor, or may have a power-splitting embodiment driving dual propulsors. In addition, multiple hybrid power devices may be deployed in other embodiments.
    Type: Grant
    Filed: April 6, 2011
    Date of Patent: August 5, 2014
    Assignee: Twin Disc, Inc.
    Inventor: Philip Rolla
  • Publication number: 20140187107
    Abstract: An azimuthing drive system is provided for marine vessels. The azimuthing drive system includes a propulsion pod that houses a propulsor, which is configured to rotate about a first axis and to be driven by a first shaft generally orthogonal to the first axis. The propulsion pod is configured to swivel about the first shaft. The drive system also includes a gearbox connected to drive the first shaft, a diesel engine connected to drive the gearbox via a second shaft, and an electric motor connected to drive the first shaft via the gearbox or directly, whereby propulsion loads are shared between the diesel engine and the electric motor.
    Type: Application
    Filed: December 31, 2012
    Publication date: July 3, 2014
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: PAUL ROBERT GEMIN, HERMAN LUCAS NORBERT WIEGMAN
  • Patent number: 8758069
    Abstract: The invention relates to a drive device (1) for water vehicles comprising a propeller (2), a drive mechanism (3) for driving the propeller (2), and a magnetic coupling (4) which is arranged between the propeller (2) and the drive mechanism (3), wherein the magnetic coupling (4) comprises an outer magnetic element (7), an inner magnetic element (9) and a can (11), and wherein the can (11) is arranged between the inner magnetic element (9) and the outer magnetic element (7).
    Type: Grant
    Filed: September 24, 2010
    Date of Patent: June 24, 2014
    Assignee: EagleBurgmann Germany GmbH & Co. KG
    Inventors: Dieter Pfeil, Hans-Georg Scherer, Jürgen Binder
  • Patent number: 8727820
    Abstract: A hybrid drive system for a ship, designed as a parallel hybrid drive system, and comprising an internal combustion engine (103), an electric machine (105), acting as a generator or motor, depending on switching an electric controller (107), a battery (106), at least one switching clutch (115, 116), and a drive device (109) for transferring the drive power to at least one propeller (108). The electric machine (105) together with a first (115) and a second switched clutch (116), form a drive unit (140), that can be modularly disposed between the internal combustion engine (103) and the drive device (109). The first switched clutch (115) is disposed between the electric machine (105) and the internal combustion engine (103) and the second switched clutch (116) is disposed between the electric machine (105) and the drive device (109).
    Type: Grant
    Filed: December 3, 2009
    Date of Patent: May 20, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Paolo Stasolla, Andrea Pellegrinetti, Adriano Zanfei, Michele Zottele
  • Patent number: 8725329
    Abstract: Systems and methods are for controlling of a hybrid propulsion system for a marine vessel. A control circuit controls an electric motor-generator according to at least two modes, including a first mode wherein the electric motor-generator receives power from a battery and rotates a driveshaft to drive a propulsor and a second mode wherein the electric motor-generator generates power to charge the battery based upon torque from an internal combustion engine. A time criteria and at least one user-desired operational characteristic of at least one of the internal combustion engine, electric motor-generator, and battery are input to the control circuit. Based on the time criteria and user-desired operational characteristic, the control circuit calculates a schedule for at least one of charging the battery with the electric motor-generator and discharging the battery to a house load of the marine vessel. The control circuit further controls operation of the electric motor-generator according to the schedule.
    Type: Grant
    Filed: February 7, 2013
    Date of Patent: May 13, 2014
    Assignee: Brunswick Corporation
    Inventors: Matthew W. Snyder, Thomas S. Kirchhoff, Jason S. Arbuckle
  • Patent number: 8690616
    Abstract: A method for operating a ship propulsion system, in particular a sailing ship propulsion system, comprising an internal combustion engine (303), at least one shifting clutch (319), and a drive device (309) for transmitting drive power to at least one propeller (308). The direction of thrust of the propeller (308) is changed via the drive device (309) which is designed as a ship propulsion system which can be pivoted about a substantially vertical control axis (320) by pivoting a thrust unit (321) associated with the drive device (309). For this purpose, the pivotable thrust unit (321) is pivoted approximately 180° in the opposite direction to reverse the direction of thrust of the propeller (108).
    Type: Grant
    Filed: February 9, 2010
    Date of Patent: April 8, 2014
    Assignee: ZF Friedrichshafen AG
    Inventors: Davide Grassi, Paolo Stasolla, Andrea Pellegrinetti, Adriano Zanfei, Michele Zottele
  • Patent number: 8608521
    Abstract: Systems and methods of operating a marine propulsion system utilize an internal combustion engine and an electric motor that is powered by a battery, wherein the internal combustion engine and the electric motor each selectively power a marine propulsor to propel a marine vessel. A control circuit is operated to control operation of the system according to a plurality of modes including at least an electric mode wherein the electric motor powers the marine propulsor and a hybrid mode wherein the internal combustion engine powers the marine propulsor and provides power for recharging the battery. An operator-desired future performance capability of the hybrid marine propulsion system is input to the control circuit, which selects and executes the plurality of modes so as to provide the operator-desired desired future performance capability.
    Type: Grant
    Filed: May 3, 2011
    Date of Patent: December 17, 2013
    Assignee: Brunswick Corporation
    Inventors: Matthew W. Snyder, Aaron J. Ward, Jason S. Arbuckle
  • Patent number: 8556668
    Abstract: In a hybrid type marine propulsion device including a main engine and a motor, low fuel consumption is realized by a compact configuration and highly efficient drive control. A marine propulsion device includes a clutch 7 provided on an input shaft 6 of a main engine, a horizontal input/output shaft 8 connected to the clutch, a vertical shaft 11 connected to the input/output shaft through an upper bevel gear 9, a horizontal propeller shaft 13 connected to a lower end of the vertical shaft through a lower bevel gear 12, and a propeller 14 at the other end side of the propeller shaft, in which the propeller is revolved around the vertical shaft to set a propulsion direction, wherein a motor generator 20 is mounted on a floor 3, and connected directly to the other end side of the input/output shaft. In a low rotation region, motor propulsion is performed, and in a high rotation region, hybrid propulsion in which the main engine is assisted by the motor is performed.
    Type: Grant
    Filed: August 20, 2010
    Date of Patent: October 15, 2013
    Assignee: Niigata Power Systems Co., Ltd.
    Inventors: Masanori Kodera, Yoshiki Nanke, Koichi Shiraishi, Yasuo Aizawa, Toshiyuki Saito
  • Patent number: 8554398
    Abstract: One or more embodiments of a system for operating a vessel is provided herein. An illustrative system can include a plurality of power sources for operating the vessel. The power sources can include a battery bank and an AC power source. The system can also include an auxiliary device disposed on the vessel, wherein the auxiliary device comprises an electrical rotating source. Energy can be harvested from the electrical rotating source and transferred to the DC power source, a load of the vessel, or both. The illustrative system can also include a power management system that can include a processor; a data storage in communication with the processor; and a plurality of computer instructions stored on the data storage.
    Type: Grant
    Filed: July 8, 2010
    Date of Patent: October 8, 2013
    Assignee: C-Mar Group Holdings Ltd.
    Inventors: Paul F. Rembach, Greg Castleman
  • Patent number: 8545278
    Abstract: A method for operation of a hybrid propulsion system for a marine vessel, including at least one electric motor and at least one internal combustion engine as drive units, is disclosed. Depending on the requirement, for example the vessel speed, the drive units individually or jointly drive at least one propulsion unit, for example a propeller, the power outputs of the drive units to the at least one propulsion unit controlled by a control device as a function of a set value, for example a set value for the propeller rotation speed or the vessel speed, and an operating mode such that the sum of these power outputs results in a total power being output to the at least one propulsion unit, with this total power output being split between the power outputs of the individual drive units as a function of the set value and the operating mode.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: October 1, 2013
    Assignee: Siemens Aktiengesellschaft
    Inventors: Wolfgang Rzadki, Hannes Schulze Horn
  • Publication number: 20130210295
    Abstract: An outboard motor for a marine vessel application, and related methods of making and operating same, are disclosed herein. In at least one embodiment, the outboard motor includes a horizontal-crankshaft engine in an upper portion of the outboard motor, positioned substantially positioned above a trimming axis of the outboard motor. In at least another embodiment, first, second and third transmission devices are employed to transmit rotational power from the engine to one or more propellers at a lower portion of the outboard motor. In at least a further embodiment, the outboard motor is made to include a rigid interior assembly formed by the engine, multiple transmission devices, and a further structural component. In further embodiments, the outboard motor includes numerous cooling, exhaust, and/or oil system components, as well as other transmission features.
    Type: Application
    Filed: March 15, 2013
    Publication date: August 15, 2013
    Applicant: DAVIS ENGINEERING, LLC
    Inventor: DAVIS ENGINEERING, LLC
  • Patent number: 8353733
    Abstract: The object of the invention is an electric current-generating and/or electric power-plant device (50) in a sailing structure comprising at least one power plant and at least one battery pool, whereby said power plant comprises at least one heat engine (18), a reducer/inverter assembly, and particularly a shaft line (22) equipped with at least one propeller at its end, with the current-generating device (50) being inserted between the flange (66) of the engine cover (68) of said engine (18) and the flange (70) of the reducer/inverter assembly (20), where said device (50) is characterized in that it takes the form of a closed module (64) that can be inserted directly between the flange (66) of the engine cover (68) and the flange (70) of the reducer/inverter assembly without disassembly, total or partial, of its components.
    Type: Grant
    Filed: September 10, 2010
    Date of Patent: January 15, 2013
    Assignee: Nanni Industries
    Inventor: Dino Piccolo
  • Patent number: 8333626
    Abstract: A power unit is housed in a casing, and a screw (propeller) is disposed outside the casing, the screw being driven by the power unit. The casing is formed as a watertight case in a substantially rectangular parallelepiped shape with a left-right width direction being a longitudinal direction, and the case has at least a front face portion coupled to a stern portion and a substantially flat upper face portion at a substantially same height as a top portion of the stern portion.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: December 18, 2012
    Assignee: Suzuki Motor Corporation
    Inventor: Keisuke Daikoku
  • Publication number: 20120315811
    Abstract: A submersible vessel comprising: an elongated hull; at least one propeller mounted on a forward end of said hull and adapted to move said hull through water; said at least one propeller being of a size and configuration such that when it is rotated at an appropriate speed, it generates supercavitated water flowing from said at least one propeller and thence along an outer surface of said hull so as to diminish friction on the outer surface of said hull and facilitate high underwater speeds.
    Type: Application
    Filed: March 30, 2012
    Publication date: December 13, 2012
    Inventor: Gregory E. Sancoff
  • Publication number: 20120309242
    Abstract: Hybrid propulsion system for a vessel including main engines connected to propulsion to propulsion means via transmission devices and connection devices for connection and disconnection, where the system includes one or more electrical machines arranged to the transmission device(s) via connection device for connection and disconnection of the from the transmission device, and one or more hybrid shaft generators, which is/are arranged between the electrical machine and one or more switchboards for the vessel.
    Type: Application
    Filed: November 9, 2010
    Publication date: December 6, 2012
    Applicant: ROLLS-ROYCE MARINE AS
    Inventor: Torbjorn Haugland
  • Patent number: 8315750
    Abstract: The invention relates to a method for improving the propulsion efficiency of vessels. The improvement is obtained by utilizing wave induced variations in propeller inflow, i.e. the speed of water flowing towards the propeller. The wave induced water speed variation is used to calculate the propeller speed in a way so that the propeller speed is optimal with respect to the total propulsion efficiency. The optimal propeller speed is determined by solving an optimization problem formulated as the maximization of the ratio of energy delivered by the propeller and the energy delivered to the propeller. The method may be used for vessels with one or more propellers.
    Type: Grant
    Filed: August 14, 2008
    Date of Patent: November 20, 2012
    Assignee: Propeller Control ApS
    Inventors: Mogens Blanke, Luca Pivano
  • Patent number: 8298025
    Abstract: Cooling systems and methods for hybrid marine propulsion systems are disclosed. A first cooling circuit is arranged to convey raw cooling water through an internal combustion engine and to at least one drive component of a drive unit for the marine propulsion system. A second control circuit is arranged to convey raw cooling water through an electric motor. The system is arranged such that raw cooling water in the second cooling circuit is conveyed to the first cooling circuit to cool the drive component without cooling the component of the internal combustion engine.
    Type: Grant
    Filed: February 8, 2010
    Date of Patent: October 30, 2012
    Assignee: Brunswick Corporation
    Inventor: Charles H. Eichinger
  • Patent number: 8298023
    Abstract: There is provided a hybrid outboard motor capable of transmitting motive power of a power source appropriately and efficiently in a limited space while achieving compactness, high performance, and the like. The hybrid outboard motor includes: a casing; a power unit housed in the casing; a screw disposed outside the casing, the screw being driven by the power unit; a power transmission system transmitting motive power of the power unit to the screw; an internal combustion engine and an electric motor serving also as a generator, the internal combustion engine and the electric motor being arranged in parallel in a beam direction in the casing; and a first clutch disposed between the internal combustion engine and the electric motor, wherein one or both of the internal combustion engine and the electric motor are connected to a propulsion unit including the screw so as to rotate it.
    Type: Grant
    Filed: March 25, 2010
    Date of Patent: October 30, 2012
    Assignee: Suzuki Motor Corporation
    Inventor: Keisuke Daikoku
  • Publication number: 20120258639
    Abstract: A hybrid power device for a marine vehicle is provided that has two hybrid prime movers, an electric motor and a combustion engine, that distribute power, for example torque, to a single or dual propulsor, such as surface drives with propellers. The prime movers can apply power singly or in unison, but maintain substantially optimum propulsive efficiency in all cases. The power outputs of the prime movers are in communication with a power transmitting device such as a gear box that may combine the power outputs to drive a single propulsor, or may have a power-splitting embodiment driving dual propulsors. In addition, multiple hybrid power devices may be deployed in other embodiments.
    Type: Application
    Filed: April 6, 2011
    Publication date: October 11, 2012
    Applicant: Twin Disc, Inc.
    Inventor: Philip Rolla
  • Publication number: 20120252285
    Abstract: A ship includes: a high-pressure injection engine using fuel gas as fuel to obtain a propulsion power of the ship; a generator engine using fuel gas as fuel to generate electricity; a motor generating a power by using the electricity generated from the generator engine; a propulsion propelling the ship; a main clutch connecting the high-pressure injection engine to the propulsion; an auxiliary clutch connecting the gear box to the propulsion; and a gear box disposed in a front side of the propulsion and power-connected to the main clutch and the auxiliary clutch. The high-pressure injection engine and the motor are selectively power-connected to the propulsion to obtain the propulsion power of the ship.
    Type: Application
    Filed: October 18, 2010
    Publication date: October 4, 2012
    Applicant: Daewoo Shipbuilding & Marine Engineering Co., Ltd.
    Inventors: Jin Kwang Lee, Dong Kyu Choi, Jung Han Lee
  • Publication number: 20120238160
    Abstract: The invention relates to a drive device (1) for water vehicles comprising a propeller (2), a drive mechanism (3) for driving the propeller (2), and a magnetic coupling (4) which is arranged between the propeller (2) and the drive mechanism (3), wherein the magnetic coupling (4) comprises an outer magnetic element (7), an inner magnetic element (9) and a can (11), and wherein the can (11) is arranged between the inner magnetic element (9) and the outer magnetic element (7).
    Type: Application
    Filed: September 24, 2010
    Publication date: September 20, 2012
    Applicant: EagleBurgmann Germany GmbH & Co. KG
    Inventors: Dieter Pfeil, Hans-Georg Scherer, Jürgen Binder
  • Publication number: 20120238159
    Abstract: In one aspect, the invention is directed to a watercraft that is drivable by a manual force input member and by a motor. The watercraft is configured to prevent the motor from back-driving the manual force input member. In a particular embodiment, the watercraft includes a hull, a propelling member configured to propel the hull through water, a manual force input member that is movable manually, an output shaft that is operatively connected to the propelling member and that is drivable by the manual force input member, a motor that is operatively connectable to the output shaft, and a one-way clutch connected between the manual force input member and the output shaft. The one-way clutch is configured to permit the manual force input member to drive the output shaft in a first rotational direction, and to prevent the output shaft from driving the manual force input member in the first rotational direction.
    Type: Application
    Filed: September 17, 2010
    Publication date: September 20, 2012
    Inventors: Sandor Palvoelgyi, Bernhard Maier
  • Publication number: 20120231681
    Abstract: A vessel includes a first propulsion mechanism, at least one second propulsion mechanism, and a hull. The first propulsion mechanism is arranged to generate thrust by an internal combustion engine. The second propulsion mechanism is arranged to generate thrust by an electric motor. The first propulsion mechanism and the second propulsion mechanism are disposed in the hull. The first propulsion mechanism and the second propulsion mechanism are mutually independent. A direction of the thrust generated by the first propulsion mechanism and a direction of the thrust generated by the at least one second propulsion mechanism are the same as each other.
    Type: Application
    Filed: February 17, 2012
    Publication date: September 13, 2012
    Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Susumu SHIBAYAMA
  • Patent number: 8244419
    Abstract: A marine power system comprises a motor for providing propulsion. It also comprises an energy storage unit (ESU) for storing and supplying energy to the motor. A prime power system is connected to the ESU and motor for selectively providing energy to these subsystems through a bus. The motor selectively receives energy from the prime power system and the ESU and can supply regenerative braking energy to the bus. The system can also accommodate multiple generator sets providing system power. The ESU can also provide starting power for the prime power system. Alternately, the prime power system drives a mechanical power system output shaft connected to the motor, and the marine system comprises an alternator driven by the prime power system output shaft. The ESU can transmit energy to the alternator. The prime power system can be located on a tugboat displacing a barge carrying the energy storage unit.
    Type: Grant
    Filed: October 24, 2007
    Date of Patent: August 14, 2012
    Assignee: Mi-Jack Canada, Inc.
    Inventors: Frank Wegner-Donnelly, John David Watson
  • Patent number: 8216008
    Abstract: A mixed propulsion system for a seagoing vessel such as a liquid natural gas carrier including a gas turbine engine is described. The vessel has at least one electric propulsion drive and a plurality of prime movers of different types each coupled directly to drive an electrical generator. The outputs of the several generators are connected to at least two electricity distribution switchboards to supply the power requirements of the vessel, and each electric propulsion drive is cross-coupled to receive power selectively from either switchboard such that in the event of a single failure in a switchboard or prime mover or both power can be maintained to both propulsion drives.
    Type: Grant
    Filed: October 8, 2007
    Date of Patent: July 10, 2012
    Assignee: Rollys-Royce PLC
    Inventor: Kevin Daffey
  • Publication number: 20120129411
    Abstract: In a hybrid type marine propulsion device including a main engine and a motor, low fuel consumption is realized by a compact configuration and highly efficient drive control. A marine propulsion device includes a clutch 7 provided on an input shaft 6 of a main engine, a horizontal input/output shaft 8 connected to the clutch, a vertical shaft 11 connected to the input/output shaft through an upper bevel gear 9, a horizontal propeller shaft 13 connected to a lower end of the vertical shaft through a lower bevel gear 12, and a propeller 14 at the other end side of the propeller shaft, in which the propeller is revolved around the vertical shaft to set a propulsion direction, wherein a motor generator 20 is mounted on a floor 3, and connected directly to the other end side of the input/output shaft. In a low rotation region, motor propulsion is performed, and in a high rotation region, hybrid propulsion in which the main engine is assisted by the motor is performed.
    Type: Application
    Filed: August 20, 2010
    Publication date: May 24, 2012
    Applicant: NIIGATA POWER SYSTEMS CO., LTD.
    Inventors: Masanori Kodera, Yoshiki Nanke, Koichi Shiraishi, Yasuo Aizawa, Toshiyuki Saito
  • Patent number: 8147282
    Abstract: A marine vessel power generation system comprising a conventional machinery arrangement, such as an internal combustion engine (2) and a generator (3), a propulsion system, and a main switchboard (6). In order to provide an environmental friendly power generation system, when the marine vessel enters, leaves or is in port, said system is provided with an H2O operated power generation arrangement (8) for generating H2O from seawater in order to produce electrical energy.
    Type: Grant
    Filed: June 1, 2007
    Date of Patent: April 3, 2012
    Assignee: WärtsiläFinland Oy
    Inventor: Oskar Levander
  • Patent number: 8118627
    Abstract: A propulsion arrangement for a marine vessel is disclosed. The propulsion arrangement comprises an engine (12, 14) for propelling the vessel and an electrical machine (26, 28) coupled to the engine. The electrical machine is arranged to supply onboard electrical power for the vessel. A control unit (44) controls the electrical machine such that the electrical machine is selectively operable as a generator or a motor. The control unit and the electrical machine are arranged such that the electrical machine when operating as a motor can supplement the power of the engine while the engine is in operation. In one embodiment, the control unit and the electrical machine are arranged to provide active damping of the engine torque.
    Type: Grant
    Filed: March 18, 2008
    Date of Patent: February 21, 2012
    Assignee: Cummins Generator Technologies Limited
    Inventors: Krzysztof Wejrzanowski, Douglas Hay Cartwright, Cleveland Mills, Nazar Al-Khayat
  • Publication number: 20120028514
    Abstract: A method for operating a ship propulsion system, in particular a sailing ship propulsion system, comprising an internal combustion engine (303), at least one shifting clutch (319), and a drive device (309) for transmitting drive power to at least one propeller (308). The direction of thrust of the propeller (308) is changed via the drive device (309) which is designed as a ship propulsion system which can be pivoted about a substantially vertical control axis (320) by pivoting a thrust unit (321) associated with the drive device (309). For this purpose, the pivotable thrust unit (321) is pivoted approximately 180° in the opposite direction to reverse the direction of thrust of the propeller (108).
    Type: Application
    Filed: February 9, 2010
    Publication date: February 2, 2012
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Davide Grassi, Paolo Stasolla, Andrea Pellegrinetti, Adriano Zanfei, Michele Zottele
  • Publication number: 20120028515
    Abstract: A hybrid drive system for a ship, designed as a parallel hybrid drive system, and comprising an internal combustion engine (103), an electric machine (105), acting as a generator or motor, depending on switching an electric controller (107), a battery (106), at least one switching clutch (115, 116), and a drive device (109) for transferring the drive power to at least one propeller (108). The electric machine (105) together with a first (115) and a second switched clutch (116), form a drive unit (140), that can be modularly disposed between the internal combustion engine (103) and the drive device (109). The first switched clutch (115) is disposed between the electric machine (105) and the internal combustion engine (103) and the second switched clutch (116) is disposed between the electric machine (105) and the drive device (109).
    Type: Application
    Filed: December 3, 2009
    Publication date: February 2, 2012
    Applicant: ZF FRIEDRICHSHAFEN AG
    Inventors: Paolo Stasolla, Andrea Pellegrinetti, Adriano Zanfei, Michele Zottele
  • Patent number: 8075354
    Abstract: A marine vessel is constructed with a submerged front rotor/turbine that shields the vessel hull from water motion induced resistance force to a degree without significantly increasing the vessels water resistance while abstracting hydrodynamic energy from the vessel motion displaced water that would otherwise be dissipated/lost and couples or connects the resulting rotorary energy through mechanical or electrical means to assist in driving the vessel.
    Type: Grant
    Filed: July 23, 2009
    Date of Patent: December 13, 2011
    Inventor: Thomas G. Packard
  • Patent number: 8065972
    Abstract: An underwater vehicle comprising an electrical power generation system that converts thermal energy from a body of water into electrical energy is disclosed. The vehicle comprises the electrical power generation system and a thermal mass whose temperature is based on the temperature of water at a first depth of a body of water. The vehicle is moved to a second depth of the body of water, wherein water at the second depth is a different temperature that the water at the first depth. The electrical power generation system generates electrical energy based on the difference between the temperature of the water at the second depth and the temperature of the thermal mass. The electrical power generation system is able to generate electrical energy when the temperature difference is negative as well as when the temperature difference is positive.
    Type: Grant
    Filed: March 7, 2009
    Date of Patent: November 29, 2011
    Assignee: Lockheed Martin Corporation
    Inventors: Robert James Howard, John W. Rapp
  • Publication number: 20110237141
    Abstract: A hybrid marine drivetrain for a watercraft, the drivetrain including a driveshaft for driving a propulsion device of the watercraft, an internal combustion engine for driving the driveshaft, a motor for driving the driveshaft, a storage unit for storing energy in a form suitable for operating the motor, and a generator driven by the internal combustion engine for generating energy to power the motor, wherein a drive output of the motor is in direct driving connection with the driveshaft, a drive output of the internal combustion engine is in direct driving connection with a rotor of the generator, and a clutch is provided to selectively couple/decouple drive from the internal combustion engine to/from the driveshaft.
    Type: Application
    Filed: August 28, 2009
    Publication date: September 29, 2011
    Applicant: NT Consulting International Pty Limited
    Inventor: Richard Terrence Tamba
  • Publication number: 20110195618
    Abstract: A hybrid propulsion system has an internal combustion engine and an electric motor that each selectively powers a marine propulsor to propel a marine vessel. A plurality of batteries discharges current to power the motor. A controller is programmed to aggregate the recharge and/or discharge limits of plurality of batteries and then operate the system according to a method that preferably prevents internal fault and disconnection of batteries in the plurality.
    Type: Application
    Filed: August 3, 2010
    Publication date: August 11, 2011
    Applicant: Brunswick Corporation
    Inventors: Jason S. Arbuckle, Aaron J. Ward