Having Transmission Patents (Class 440/75)
  • Patent number: 11105260
    Abstract: An outboard motor includes a shift switch including a shift shaft and a rotary drive provided on an axis of the shift shaft and that rotates the shift shaft, and that switches a rotation direction of a propeller shaft. An entirety of the rotary drive is disposed below a mount, and at least a portion of the rotary drive is disposed above a lower case.
    Type: Grant
    Filed: November 30, 2018
    Date of Patent: August 31, 2021
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Yukio Takeda, Yuki Ikegaya
  • Patent number: 11066142
    Abstract: When a shift member is in a first position, a first clutch couples a second drive shaft to a first drive shaft. When the shift member is in the first position, a second clutch decouples a first gear from the first drive shaft. When the shift member is in the first position, a third clutch decouples a second gear from the second drive shaft.
    Type: Grant
    Filed: July 1, 2020
    Date of Patent: July 20, 2021
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Yuki Ikegaya, Satoru Hamada, Takahiro Oguma, Akihiro Onoue
  • Patent number: 10788080
    Abstract: A dog clutch comprising a sleeve and a relative crown with respective teeth conformed for engaging each one alternatively to the others wherein, during operation a pulling side for said teeth is defined, that identifies a surface through which the torque is transferred, and wherein, the teeth pulling side or at least the crown and/or the sleeve is conformed so that the relative tooth is tapered from a relative base towards a relative vertex, wherein said pulling side comprises at least three portions of which a first portion is adjacent to said base and a third portion is adjacent to said vertex following a rectilinear path and being approximately parallel to generating line of said crown or sleeve, and having a second portion adjoining said first portion with said third portion.
    Type: Grant
    Filed: October 5, 2018
    Date of Patent: September 29, 2020
    Assignee: FPT INDUSTRIAL S.p.A.
    Inventors: Alex Marcello, Alessandro Mantovan
  • Patent number: 10710690
    Abstract: This power system for mounting on a marine vehicle includes a propulsion unit, means for securing the propulsion assembly to a hull element of the vehicle and a rudder bearing mechanically connecting the propulsion unit with the fittings. The fittings are configured so that once the power system is mounted on the hull element; the plane of the rudder bearing is inclined relative to a plane containing one longitudinal axis and one transverse axis of the marine vehicle.
    Type: Grant
    Filed: June 13, 2017
    Date of Patent: July 14, 2020
    Assignee: GE Energy Power Conversion Technology Limited
    Inventors: Lionel Julliand, Thierry Deschamps, Laurent Barth
  • Patent number: 10604223
    Abstract: A reduction reverse gear according to the invention of the present application includes: an input shaft to which rotational driving force from a main engine is input; a front-reverse housing accommodating forward-backward switching mechanisms with which the rotational driving force from the input shaft is switched among forward, neutral, and backward; an output shaft through which the rotational driving force from the forward-backward switching mechanisms is output; and a reduction housing accommodating a reduction mechanism with which the rotational driving force from the output shaft is reduced to be transmitted to a propeller shaft. The housings are detachably coupled to each other on front and rear sides in an axial direction. The input shaft and the output shaft are arranged on the same plane while facing each other.
    Type: Grant
    Filed: April 4, 2017
    Date of Patent: March 31, 2020
    Assignee: KANZAKI KOKYUKOKI MANUFACTURING CO., LTD.
    Inventor: Tomoyuki Ebihara
  • Patent number: 10295046
    Abstract: In an outboard motor, a feed passage, through which a lubricating oil that flows upward from a gear mechanism due to rotation of the gear mechanism, extends upward from a gear chamber and includes a first feed passage that extends from the gear chamber to a connection passage via a first upstream passage, a spiral passage, and an interior of an upper bearing, in that order. The feed passage further includes a second feed passage that extends from the gear chamber to the return passage while bypassing the spiral passage via a bypass passage. The bypass passage includes two ends spaced apart in a circumferential direction of the driveshaft and is disposed around the spiral passage.
    Type: Grant
    Filed: January 11, 2018
    Date of Patent: May 21, 2019
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Satoru Hamada, Kazuya Takeuchi
  • Patent number: 10215278
    Abstract: A marine drive includes an internal combustion engine that drives a propulsor into rotation to effect a thrust, and a transmission that shifts amongst a forward gear for a forward thrust, a reverse gear for a reverse thrust, and a neutral state for a zero thrust. The marine drive further includes a shift rod rotatable about its own axis to shift the transmission amongst forward, reverse, and neutral, and an actuator. The actuator includes an actuator motor that rotates an output shaft and a gear shaft that effectuates rotation of a shift rod. The output shaft is connected to a gear shaft through a first gearset such that rotation of the output shaft causes the rotation of the gear shaft, and the gear shaft is connected to the shift rod through a planetary gearset such that rotation of the gear shaft causes the rotation of the shift rod.
    Type: Grant
    Filed: August 17, 2016
    Date of Patent: February 26, 2019
    Assignee: Brunswick Corporation
    Inventors: Andrew Tuchscherer, Wayne M. Jaszewski, Theodore J. Hanes
  • Patent number: 10144495
    Abstract: An outboard motor includes an engine having an output portion. A lower gear mechanism drives a propeller disposed below the engine. A transmission includes an input shaft that transmits power from the output portion to the transmission. An output shaft transmits power from the transmission to the lower gear mechanism. A reverse idler shaft is parallel to an intermediate shaft. A forward clutch is disposed on one of the input and intermediate shafts and connects and disconnects power from the input shaft to the intermediate shaft. A reverse clutch is disposed on the intermediate shaft and connects and disconnects power transmission from the input shaft to the intermediate shaft. Power of the input shaft is transmitted to the output shaft via the forward clutch and the intermediate shaft and is transmitted to the output shaft via the reverse idler shaft, the reverse clutch, and the intermediate shaft.
    Type: Grant
    Filed: August 23, 2017
    Date of Patent: December 4, 2018
    Assignee: KANZAKI KOKYUKOKI MANUFACTURING CO., LTD.
    Inventor: Tomoyuki Ebihara
  • Patent number: 10124872
    Abstract: An electric shift actuator is provided in an engine cover in which an engine of an upper unit is accommodated, a forward/reverse shift mechanism is provided in a lower unit, and a shift transmission mechanism including a clutch rod is provided to transmit driving force of the electric shift actuator to the forward/reverse shift mechanism by connecting the electric shift actuator with the forward/reverse shift mechanism, in which the clutch rod is disposed vertically in an intermediate unit on the rear side of a drive shaft that transmits driving force of the engine.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: November 13, 2018
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Shuichi Sugiyama, Keisuke Daikoku
  • Patent number: 10124871
    Abstract: An outboard motor has a mounting assembly, a powerhead, a transmission, and a shift shaft that extends from the powerhead to the transmission via a conduit in the mounting assembly. The shift shaft is positionable into a forward position in which the transmission is engaged in forward gear, reverse position in which the transmission is engaged in reverse gear, and a neutral position in which the transmission is in neutral gear. In the forward position, an upper end of the shift shaft is positioned closer to a forward side of the conduit than the aftward side of the conduit. In the reverse position, the upper end of the shift shaft is positioned closer to an aftward side of the conduit than the forward side of the conduit. In the neutral position, the upper end of the shift shaft is positioned between the forward and reverse positions.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: November 13, 2018
    Assignee: Brunswick Corporation
    Inventors: Charles H. Eichinger, Scott G. Ahlswede
  • Patent number: 10119564
    Abstract: An outboard motor includes a first driven gear and a second driven gear, a first conical roller bearing and a second conical roller bearing, and a nut. The first driven gear and the second driven gear mesh with a driving gear. The driving gear rotates through transmission of a rotative power from an engine unit. The first conical roller bearing and the second conical roller bearing are disposed on an outer periphery of a tubular portion of the second driven gear. The first conical roller bearing and the second conical roller bearing are arranged in a front-rear direction in directions opposite from one another. The nut is disposed on the outer periphery of the tubular portion of the second driven gear. The nut is displaceable in an axial direction of the tubular portion.
    Type: Grant
    Filed: October 28, 2016
    Date of Patent: November 6, 2018
    Assignee: Suzuki Motor Corporation
    Inventor: Tomokazu Hikosaka
  • Patent number: 10040530
    Abstract: An outboard motor includes a driving gear that is driven and rotated, and a propeller shaft that extends in a front-rear direction below the driving gear. The outboard motor includes a first transmission gear that is engaged with the driving gear and surrounding the propeller shaft, a propeller-shaft bearing that rotatably supports the propeller shaft, a first-transmission-gear bearing that rotatably supports the first transmission gear, and a support including an intervening portion between the first transmission gear and the propeller shaft. The support supports the propeller-shaft bearing between the intervening portion and the propeller shaft, and supports the first-transmission-gear bearing at a more outward position than the intervening portion in a radial direction of the propeller shaft.
    Type: Grant
    Filed: November 17, 2017
    Date of Patent: August 7, 2018
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Yoshihiko Okabe
  • Patent number: 10023283
    Abstract: An outboard motor for a marine vessel application, transmission devices for such an outboard motor, and related methods of making, operating, and modifying attributes of same, are disclosed herein. In at least one embodiment, the motor includes a horizontal-crankshaft engine in an upper portion of the motor, positioned substantially above a trimming axis of the motor. In at least another embodiment, first, second and third transmission devices are employed to transmit rotational power from the engine to propeller(s). In at least a further embodiment, the 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 motor includes numerous cooling, exhaust, and/or oil system components, and/or other transmission features. In at least some additional embodiments, a transmission device of the motor is configured to facilitate gear ratio variation and/or includes an integrated oil pump.
    Type: Grant
    Filed: August 20, 2015
    Date of Patent: July 17, 2018
    Assignee: Seven Marine, LLC
    Inventors: Eric A. Davis, Richard A. Davis
  • Patent number: 9937989
    Abstract: An outboard motor includes an engine housed in a cowling and disposed above an upper case housing a driveshaft. A gear mechanism transmits a rotation of the driveshaft to a propeller shaft housed in a lower case disposed below the upper case. The gear mechanism is housed in an oil storage chamber of the lower case and is lubricated by a lubricating oil inside the oil storage chamber. An oil passage includes a lower oil port opening at the oil storage chamber, an upper oil port positioned higher than the lower case, and a longitudinal passage extending in an up/down direction inside the lower case.
    Type: Grant
    Filed: October 21, 2016
    Date of Patent: April 10, 2018
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventor: Atsushi Kumita
  • Patent number: 9862470
    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: Grant
    Filed: December 8, 2015
    Date of Patent: January 9, 2018
    Assignee: SEVEN MARINE, LLC
    Inventors: Eric A. Davis, Richard A. Davis
  • Patent number: 9856005
    Abstract: An outboard drive device comprising a motor having a crankshaft, wherein said outboard drive device further comprises a propeller shaft with a propeller, and a power coupling system for transferring power from the motor to the propeller shaft. The power coupling system involves a transmission including side-by-side positioning of forward and reverse gears of the device, which are rotatably engaged with a drive shaft. Particular variables of the system enable increased power output to be transmitted through the transmission, while also providing quick and efficient power distribution among different rotations of the propeller shaft of the device.
    Type: Grant
    Filed: June 9, 2014
    Date of Patent: January 2, 2018
    Assignee: CIMCO MARINE AB
    Inventors: Christer Flodman, Andreas Blomdahl
  • Patent number: 9840316
    Abstract: An outboard motor having an internal combustion engine that causes rotation of a driveshaft, a planetary transmission that operatively connects the driveshaft to a transmission output shaft, a band brake configured to shift the planetary transmission amongst a forward gear, neutral gear and reverse gear, a hydraulic actuator is configured to actuate the band brake, and a cooling water circuit that extends adjacent to the hydraulic actuator so that the hydraulic actuator exchanges heat with cooling water in the cooling water circuit.
    Type: Grant
    Filed: October 31, 2016
    Date of Patent: December 12, 2017
    Assignee: Brunswick Corporation
    Inventor: Wayne M. Jaszewski
  • Patent number: 9815538
    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: Grant
    Filed: August 20, 2015
    Date of Patent: November 14, 2017
    Assignee: Seven Marine, LLC
    Inventors: Eric A. Davis, Richard A. Davis
  • Patent number: 9776700
    Abstract: An outboard motor includes a lower unit and an upper unit that is attachable to the stern of a boat, with the upper unit and lower unit configured to tilt together about a transverse tilt axis. The upper unit includes an engine, a transmission assembly and a drive shaft and the lower unit includes a lower unit housing and a propeller shaft that is connected to the drive shaft. The lower unit housing is configured to pivot relative to the upper unit, about a steering axis that extends coaxially with the drive shaft. The steering axis intersects the propeller axis at an obtuse angle.
    Type: Grant
    Filed: June 12, 2015
    Date of Patent: October 3, 2017
    Inventor: Michael Alan Beachy Head
  • Patent number: 9731803
    Abstract: A forward/backward switching mechanism having an intermediate gear supported by an intermediate shaft perpendicular to a drive shaft is interposed between first and second input shafts. A clutch body is a dog clutch having upper and lower locking dogs. As the dog clutch moves along an axial direction of the second input shaft and is engaged with upper or lower gears, rotation of the first input shaft is forwardly or reversely transmitted to the second input shaft.
    Type: Grant
    Filed: March 1, 2016
    Date of Patent: August 15, 2017
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Tetsushi Achiwa, Keisuke Daikoku
  • Patent number: 9726211
    Abstract: Exemplary embodiments provide a rotary misalignment-compensation bushing connection system that may be used in large-scale operations where several components are mounted in alignment on a single pin. For example, the misalignment-compensation system may be used in preloaded connection of a male lug rotatably mounted between a first lug and a second lug, on heavy equipment, for example, oil field exploration and production equipment. The misalignment-compensation system includes tapered cone bushings and surrounding counter-tapered cup bushings that expand in diameter and align the connection system as it is torqued together assembling the components to the pin.
    Type: Grant
    Filed: March 17, 2014
    Date of Patent: August 8, 2017
    Assignee: SCHLUMBERGER TECHNOLOGY CORPORATION
    Inventors: Keith J. Orgeron, Robert Metz
  • Patent number: 9670972
    Abstract: In order to reduce torsional vibrations in a drive including a torque converter with a turbine and impeller, clutch slip speed of the drive is adjusted by manipulation of clutch pressure. This may be done in either closed loop mode or open loop mode by setting the clutch pressure to a predetermined value or continuously adjusting clutch pressure. Pressure is adjusted to produce a positively sloped function of sensed total torque of the clutch and turbine over the clutch slip speed. This produces extended service life of the drive train components, greater efficiency of the torque converter, and smoother operation of the drive.
    Type: Grant
    Filed: April 28, 2014
    Date of Patent: June 6, 2017
    Assignee: Twin Disc, Inc.
    Inventors: William D. Smith, Richard A. Shaw
  • Patent number: 9630696
    Abstract: According to one embodiment, a shift actuator includes a main body section and a shaft section. The main body section has an electric motor which has a vertically extending rotating shaft, and a gear mechanism which rotates the shaft section in accordance with the rotating shaft. The shaft section has a threaded shaft extending parallel to the rotating shaft and made to rotate by the gear mechanism in accordance with the rotating shaft and a movable nut which is screwed onto the threaded shaft and moves upward or downward with rotation of the threaded shaft. The movable nut is connected with a shift member which changes the gears of a propeller shaft.
    Type: Grant
    Filed: March 30, 2016
    Date of Patent: April 25, 2017
    Assignee: NHK SPRING CO., LTD.
    Inventor: Sachio Ooshita
  • Patent number: 9540089
    Abstract: A marine propulsion device includes an engine, a driving shaft coupled to the engine and configured to transmit power, a first cooling water pump configured to be driven by the driving force of the driving shaft and to pump cooling water to cool the engine, a cooling water path configured to supply the cooling water sent by the first cooling water pump to the engine, and a pressurization mechanism arranged in a water passage upstream of a suction port of the first cooling water pump and configured to apply pressure to the cooling water supplied to the suction port of the first cooling water pump.
    Type: Grant
    Filed: March 9, 2015
    Date of Patent: January 10, 2017
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Takahiro Oguma, Atsushi Kumita
  • Patent number: 9522720
    Abstract: A vessel propulsion apparatus includes a dog clutch that selectively engages either a front gear or a rear gear, an intermediate shaft rotatably supported by the front gear and by the rear gear and that rotates together with the dog clutch, a propeller shaft to which rotation of the intermediate shaft is transmitted, a lower case containing a drive gear and other elements, and a thrust transmitting member that receives a forward-direction thrust from the propeller shaft and that transmits the thrust to the lower case without transmitting the thrust to the intermediate shaft.
    Type: Grant
    Filed: December 19, 2014
    Date of Patent: December 20, 2016
    Assignee: YAMAHA HATSUDOKI KABUSHIKI KAISHA
    Inventors: Daisuke Nakamura, Yoshihito Fukuoka
  • Patent number: 9481437
    Abstract: An outboard motor includes a drive shaft that transmits rotational power from an engine, a shift unit provided in the middle of the drive shaft, and a water pump that feeds a coolant to the engine. The drive shaft has a first input shaft that receives rotational power transmitted from the engine and a second input shaft that receives rotational power transmitted from the first input shaft. The shift unit has an upper gear rotating in synchronization with the first input shaft, an intermediate gear meshing with the upper gear at all times, and an intermediate shaft extending to the rear side from the intermediate gear and rotating in synchronization. The oil pump as an accessory is operated by the rotational power transmitted to the intermediate shaft.
    Type: Grant
    Filed: March 8, 2016
    Date of Patent: November 1, 2016
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Tetsushi Achiwa, Keisuke Daikoku
  • Patent number: 9475562
    Abstract: An outboard motor includes a drive shaft that transmits rotational power from the engine, and a shift unit provided in the middle of the drive shaft. The shift unit has a dog clutch that reciprocates in parallel with the drive shaft, a shift fork member that reciprocates the dog clutch in parallel with the drive shaft, and a linear motion type actuator that reciprocates the shift fork member in parallel with the drive shaft. The actuator is arranged in the vicinity of the front side of the dog clutch such that the direction of the rectilinear motion of the screw shaft is in parallel with the axial line of the drive shaft, and the shift fork member is connected to the screw shaft.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: October 25, 2016
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Shuichi Sugiyama, Keisuke Daikoku
  • Patent number: 9463853
    Abstract: A floating structure has a hull and a propeller propulsion system having a gear arrangement that is connected via a first intermediate shaft to at least one electromotor, the electromotor being arranged onboard the floating structure, and via a second intermediate shaft to a propeller. The gear arrangement has an angular gear. The first intermediate shaft forms an angle relative to the second intermediate shaft. The gear arrangement is arranged as a separate unit in an appendage or addition to the hull of the floating structure. The appendage or addition is designed to allow an interior thereof to be accessed from within the vessel, whereby maintenance, replacement, or repairs of the gear arrangement can be carried out. The angular gear has at least one angled gearwheel set and one cylindrical gearwheel set.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: October 11, 2016
    Assignee: Scana Volda AS
    Inventors: Henning Brautaset, Roald Håvik
  • Patent number: 9346526
    Abstract: This invention relates to a device and method of reducing the azimuthal torque acting on a pulling pod unit or azimuth thruster (1) having a rotary pod housing (2) with a substantially vertical slewing axis (3) and a fixed downwardly directed first fin (4) carried by the pod housing (2) abaft the slewing axis (3), wherein said first fin is in the form of an elongated strip-shaped vane (4) and extends abaft the slewing axis (3) along the pod housing (2) to the vicinity of a rear end (5) thereof.
    Type: Grant
    Filed: October 5, 2012
    Date of Patent: May 24, 2016
    Assignee: Rolls-Royce Aktiebolag
    Inventors: Anders Ottosson, Rikard Johansson
  • Patent number: 9346525
    Abstract: A ship drive having a drive machine, a transmission, a propeller shaft that is driven by the transmission and a mounting arrangement by which the ship drive can be secured to a hull of a ship. The drive machine and the transmission are connected to one another by a connecting flange and are arranged inside the hull of the ship. A first mounting point, which is designed as a pivot bearing relative to the rotational axis of the propeller shaft, is arranged in such a manner that a bending moment, produced by the propeller thrust and by the weight of the drive machine and the transmission, is optimized at the connecting flange.
    Type: Grant
    Filed: March 12, 2013
    Date of Patent: May 24, 2016
    Assignee: ZF Friedrichshafen AG
    Inventor: Angelo Scapin
  • Patent number: 9260170
    Abstract: A transmission is structured to include a drive shaft, a counter shaft disposed in parallel with the drive shaft, a gear train bridged between each of a drive shaft input shaft and output shaft and the counter shaft, and a dog clutch mechanism selectively switching a high shift speed and a low shift speed in a transmission chamber. The transmission includes a drive device driving the dog clutch mechanism constituted of a hydraulic drive device driven by a hydraulic cylinder, the hydraulic cylinder being disposed in the transmission chamber.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: February 16, 2016
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Yoshiki Kubo, Keisuke Daikoku, Keiji Imanaga
  • Patent number: 9238503
    Abstract: A transmission is structured to include a drive shaft, a counter shaft, a gear train bridged between each of a drive shaft input shaft and output shaft and the counter shaft, and a dog clutch mechanism selectively switching a high shift speed and a low shift speed in a transmission chamber. In a lower part of a lower bearing of the counter shaft in a bottom part of the transmission chamber, a lower reserve part of lubrication oil is provided, and a lubrication oil pump sending lubrication oil to respective parts of the transmission from the lower reserve part is provided.
    Type: Grant
    Filed: July 9, 2014
    Date of Patent: January 19, 2016
    Assignee: SUZUKI MOTOR CORPORATION
    Inventors: Yoshiki Kubo, Keisuke Daikoku, Keiji Imanaga
  • Patent number: 9126665
    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: Grant
    Filed: March 14, 2013
    Date of Patent: September 8, 2015
    Assignee: Seven Marine, LLC
    Inventors: Eric A. Davis, Richard A. Davis
  • Patent number: 9079651
    Abstract: A marine vessel propulsion system includes multiple propulsion devices, multiple operation levers, and multiple lever position sensors arranged to detect the positions of the multiple operation levers, and a control unit. The control unit is programmed to control, based on detection results from the multiple lever position sensors, the shift states of the respective propulsion devices and to change the steering angle of at least one of the propulsion devices. The control unit may be arranged to change the steering angles of the propulsion devices to facilitate the behavior of the hull corresponding to the shift states of the respective propulsion devices.
    Type: Grant
    Filed: December 28, 2009
    Date of Patent: July 14, 2015
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventors: Yukinori Nose, Toshiya Inai, Yoshiyuki Ichikawa, Makoto Mizutani
  • Patent number: 9067665
    Abstract: A steering system for a marine pod drive is disclosed. The system includes a driving pinion attached to a driving shaft. The system further includes a driven gear mounted to a driven shaft. Moreover, the system includes an intermediate gear mounted to an intermediate shaft and in mesh with the driving pinion. Furthermore, an intermediate pinion is attached to the intermediate shaft. The intermediate pinion is in mesh with the driven gear on the driven shaft. Moreover, the intermediate pinion may be fastened with the intermediate gear by a shear pin such that the intermediate pinion rotates with the intermediate gear. The shear pin may be configured to shear when a torque transmitted through the system exceeds a rated torque value, thereby causing the intermediate gear to rotate freely on the intermediate shaft.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: June 30, 2015
    Assignee: Caterpillar Inc.
    Inventors: John Schlintz, Bryan L Danner
  • Patent number: 9017118
    Abstract: The gear case assembly has a gear case, a driveshaft and a propeller shaft mounted at an angle to the driveshaft, each at least partly disposed within the gear case, a transmission having forward and reverse gears and a shift rod, and an electric transmission actuator assembly having an actuation axis and an actuator end engaging the shift rod. The transmission is operatively connected the propeller shaft and the driveshaft selectively drives the propeller shaft via the transmission. An actuator chamber houses at least part of the actuator assembly. There is a gap between the actuator assembly and an actuator chamber wall in a direction perpendicular to the actuation axis. The gap is sized and shaped to permit a translation of the actuator assembly away from the shift rod for disengagement from the shift rod. A gear case, a marine outboard engine and a method of assembly is also disclosed.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: April 28, 2015
    Assignee: BRP US Inc.
    Inventors: Simon Pfiffner, Michael Freitag
  • Patent number: 9017119
    Abstract: Disclosed are a ship propulsion device and a ship having the same. According to one embodiment of the present invention, the ship propulsion device includes a rear propeller fixed on a drive shaft; a front propeller supported on a drive shaft of the front of the rear propeller to be rotated; and a reverse rotary device having a plurality of gears which are provided on a rear side of the ship, and transmits rotation of the drive shaft after reversing the rotation to the front propeller.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 28, 2015
    Assignee: Samsung Heavy Ind. Co., Ltd.
    Inventors: Jin Suk Lee, Tae Goo Lee, Kwang Jun Paik, Dong Hyun Lee, Hyun Gil Park, Jung Joong Kim, Jong Soo Seo, Tetsuji Hoshino, Seung Myun Hwangbo
  • Patent number: 8979603
    Abstract: A watercraft propulsion system has a driveshaft, one of an impeller and a propeller, an overrunning clutch having outer and inner races, a driveshaft connector connecting the driveshaft to the outer race, an electric motor having a motor output shaft operatively connected to the outer race, and an internal combustion engine. The engine has a crankcase and a crankshaft operatively connected to the inner race. A lubricant pump supplies lubricant to the overrunning clutch via lubricant passages in the crankshaft. A watercraft having the propulsion system and a hybrid propulsion conversion system for a watercraft are also disclosed.
    Type: Grant
    Filed: January 31, 2014
    Date of Patent: March 17, 2015
    Assignee: Consortium de Recherche BRP—Universite de Sherbrooke S.E.N.C.
    Inventors: Roger Rioux, Simon Richard, Eric Lafreniere, Real Dupont, Maxime Desjardins-Goulet
  • Publication number: 20150072577
    Abstract: An outboard marine drive with an engine is described. The marine drive may include a drive housing with an upper drive housing and lower drive housing. The drive housing may be configured to be attached to a transom of a marine craft. An upper drive assembly may be located in the upper drive housing. A lower gear drive assembly may be located in the lower drive housing. A cone clutch may be located in the lower drive housing to engage the upper drive assembly with the lower gear drive assembly.
    Type: Application
    Filed: September 6, 2013
    Publication date: March 12, 2015
    Applicant: Arkmos Engineering, LLC
    Inventor: Glenn D. Foreman
  • Publication number: 20150017847
    Abstract: A transmission is structured to include a drive shaft, a counter shaft, a gear train bridged between each of a drive shaft input shaft and output shaft and the counter shaft, and a dog clutch mechanism selectively switching a high shift speed and a low shift speed in a transmission chamber. In a lower part of a lower bearing of the counter shaft in a bottom part of the transmission chamber, a lower reserve part of lubrication oil is provided, and a lubrication oil pump sending lubrication oil to respective parts of the transmission from the lower reserve part is provided.
    Type: Application
    Filed: July 9, 2014
    Publication date: January 15, 2015
    Applicant: SUZUKI MOTOR CORPORATION
    Inventors: Yoshiki KUBO, Keisuke DAIKOKU, Keiji IMANAGA
  • Publication number: 20150004855
    Abstract: A gear case assembly for an outboard engine has a gear case, a driveshaft having a part disposed within the gear case, a bevel gear connected to the part of the driveshaft, a propeller shaft, and a transmission operatively connected to the bevel gear. The bevel gear selectively drives the propeller shaft via the transmission. The transmission has forward and reverse gears operatively connected to the bevel gear, and a shift assembly adapted for actuation by a shift actuator. The shift assembly has first and second rod portions and at least one resilient member. The at least one resilient member operatively connects the first rod portion to the second rod portion. The first rod portion is movable relative to the second rod portion.
    Type: Application
    Filed: June 30, 2014
    Publication date: January 1, 2015
    Applicant: BRP US INC.
    Inventors: Darrell WIATROWSKI, Mark C. NOBLE, Mike DAVENPORT
  • Patent number: 8864537
    Abstract: A gear case assembly for a marine propulsion system has a gear case, a driveshaft, a propeller shaft, and a transmission chamber. A driveshaft passage fluidly connects to the transmission chamber. A lubricant return passage fluidly connects to the transmission chamber and the driveshaft passage. A pump is driven by the driveshaft. A first lubricant filling port fluidly communicates one of the lubricant return passage and the driveshaft passage with an exterior of the gear case. A second lubricant filling port fluidly communicates one of the lubricant return passage and the transmission chamber with the exterior of the gear case. First and second plugs are selectively disposed in the first and second lubricant filling ports respectively. A check valve is disposed in the lubricant return passage between the first and second lubricant filling ports. The check valve prevents lubricant to flow through the check valve away from the transmission chamber.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: October 21, 2014
    Assignee: BRP US Inc.
    Inventor: Darrell Wiatrowski
  • Patent number: 8834217
    Abstract: A dog clutch mechanism incorporated in an outboard motor includes a sliding clutch dog member splined to a propeller shaft and having recesses on each end face thereof, and a row of gear teeth formed on an end face of each of a pair of driven gears rotatably mounted on the propeller shaft. Each of the recesses has a bottom surface stepped to provide a corner edge at a stepped portion thereof. Each of the gear teeth has a beveled surface formed at a rear edge as viewed from a rotating direction of the driven gear. When the gear teeth are in mesh with the recesses of the clutch dog member, the corner edge of the stepped bottom surface of each recess is in contact with the beveled surface of the mating gear tooth.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: September 16, 2014
    Assignee: Honda Motor Co., Ltd.
    Inventors: Hajime Yoshimura, Ryo Ogasawara, Nobuchika Katagiri
  • Patent number: 8827758
    Abstract: A marine vessel propulsion device includes an engine, a propeller shaft, a drive shaft that is rotated by power transmitted from the engine, a dog clutch that transmits rotation of the drive shaft to the propeller shaft, and an engine load generating unit. The engine load generating unit detects relative rotation speed between the drive shaft and the propeller shaft, and generates an engine load opposite in phase to the relative rotation speed detected therebetween.
    Type: Grant
    Filed: July 9, 2012
    Date of Patent: September 9, 2014
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Kazuyuki Agemura
  • Patent number: 8821201
    Abstract: A vessel propulsion apparatus includes a second shaft that is inserted in a first driven gear and in a second driven gear, that is connected to a dog clutch, and that is arranged to undergo a thrust. The vessel propulsion apparatus includes a first bearing disposed between the first driven gear and the second shaft, a second bearing disposed between the second driven gear and the second shaft, and a case to which a thrust applied to the second shaft is transmitted via the first bearing and the first driven gear or via the second bearing and the second driven gear. The vessel propulsion apparatus includes an adjusting member disposed between the second shaft and at least one of the first driven gear and the second driven gear and arranged to apply a preload onto the first bearing and the second bearing.
    Type: Grant
    Filed: November 14, 2013
    Date of Patent: September 2, 2014
    Assignee: Yamaha Hatsudoki Kabushiki Kaisha
    Inventor: Shintarou Kawaguchi
  • Patent number: 8821200
    Abstract: A gondola drive for a floating device has an underwater housing circulated around by water. The gondola drive contains a drive module which has a drive module housing and a shaft disposed therein, a transmission module with a transmission module housing and a transmission disposed therein and a propeller. The drive module and the transmission module are each configured as separate components connected to one another such that the drive module housing and the transmission module housing form at least a part of the underwater housing and that the shaft is coupled to the transmission for driving the propeller.
    Type: Grant
    Filed: February 26, 2010
    Date of Patent: September 2, 2014
    Assignee: Siemens Aktiengsellschaft
    Inventors: Ernst-Christoph Krackhardt, Christian Norbert Mueller, Jan Pellinghoff, Dierk Schroeder, Michael Wycisk, Robin De Ruiter
  • Patent number: 8808042
    Abstract: This invention relates to an amphibious vehicle and especially to an amphibious vehicle having twin internal combustion engines propelling the vehicle in water with a pair of water jet drives and propelling the vehicle on land with one of the same engines having an automatic transmission controlling a pair of track assemblies with a pair of planetary gears, clutches and disc brakes.
    Type: Grant
    Filed: July 1, 2013
    Date of Patent: August 19, 2014
    Inventor: Stanley C. Hewitt
  • 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
  • Patent number: 8771087
    Abstract: A method and apparatus for limiting the torque from an engine to the drive train of a watercraft. A torque limiting clutch is mounted to the flywheel of the engine. The output of the clutch is connected to the drive train of the watercraft. The clutch allows all of the engine's torque to be delivered to the drive train during normal conditions and less than all of the engine's torque to be delivered to the drive train during conditions in which the drive train experiences periods of excessive force. When normal conditions return, the apparatus automatically delivers all of the engine's torque to the drive train.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: July 8, 2014
    Inventor: Michael Clesceri
  • Publication number: 20140179179
    Abstract: An outboard drive device (10) comprising a motor (11) having a crankshaft (16), wherein said outboard drive device (10) further comprises a propeller shaft (12) with a propeller which propeller is below the hull (13) of a boat when said outboard drive device (10) is operated, and a power coupling system for transferring power from the motor (11) to the propeller shaft (12). The motor (11) is an automotive motor or an industrial base engine, wherein the crankshaft (16) is substantially horizontal and substantially parallel to the propeller shaft (12) when said outboard drive device (10) is operated. The power coupling system comprises a power transfer device (17), a transmission (18) and a transmission drive shaft (19). The power transfer device (17) connects the crankshaft (16) with the transmission drive shaft (19) for transferring the output power from the crankshaft (16) to the transmission drive shaft (19).
    Type: Application
    Filed: February 26, 2014
    Publication date: June 26, 2014
    Applicant: CIMCO MARINE DIESEL AB
    Inventor: Andreas Blomdahl