Tue, 26 May 2015 08:00:00 EDTA control device controls the operating state of each of a plurality of propulsion machines arranged in parallel in a marine vessel. Control devices are connected to each other by a communication line through which operating information of the propulsion machine is mutually transmitted and received. The control device includes a unit which determines the installation position of a corresponding propulsion machine, a unit which determines the connection state of another propulsion machine connected to the communication line, and a unit which determines a propulsion machine as a control reference from among a plurality of control devices. The propulsion machine as a control reference is switched to a propulsion machine which is arbitrarily designated by an operator or a propulsion machine which has the highest priority as a control reference.
Tue, 26 May 2015 08:00:00 EDTA marine outboard engine has a cowling having at least one rear panel at a rear end of the cowling. The cowling encloses a power head. A plurality of mount points are disposed inside the cowling and adapted for rigidly mounting a tie-bar bracket. Each mount point is rigidly connected to the power head and has a bracket-mounting hole formed therein. The at least one rear panel has defined thereon a visual indication of an area to be removed to create an opening adapted for receiving therethrough a tie-bar bracket mounted on and extending from the mount points. A tie-bar bracket having a mounting portion and a tie-bar coupling portion is also disclosed. A method of assembling the tie-bar bracket in the cowling is also disclosed.
Tue, 26 May 2015 08:00:00 EDTA system that controls speed of a marine vessel includes first and second propulsion devices that produce first and second thrusts to propel the marine vessel. A control circuit controls orientation of the propulsion devices between an aligned position in which the thrusts are parallel and an unaligned position in which the thrusts are non-parallel. A first user input device is moveable between a neutral position and a non-neutral detent position. When the first user input device is in the detent position and the propulsion devices are in the aligned position, the thrusts propel the marine vessel in a desired direction at a first speed. When a second user input device is actuated while the first user input device is in the detent position, the propulsion devices move into the unaligned position and propel the marine vessel in the desired direction at a second, decreased speed without altering the thrusts.
Tue, 19 May 2015 08:00:00 EDTA method for controlling a ship propulsion system including a surface propeller, in which the desired capacity is interpreted as the target rotational value, the rotational speed control deviation is calculated from the desired rotational value and the actual rotational value of the internal combustion engine and an injection quantity for the rotational control of the internal combustion engine is determined using the rotational speed control deviation on a rotational speed controller. The trim position of the surface propeller is controlled by an arrangement controller in accordance with the capacity reserve of the internal combustion engine and the actual trim position and the effective rotational speed, the trim position being determined from the rotational speed control deviation.
Tue, 19 May 2015 08:00:00 EDTA paddle for stand-up paddle boards includes a paddle blade at a lower end of the paddle shaft and a sail assembly slidingly stowed within the shaft, with the sail deployed by sliding the sail assembly distally out of the shaft upper end. The sail assembly may include a sail and support frame. A method and system for transporting a user across water or other surfaces has a board for the user to stand upon and a paddle with sail slidingly deployed from inside a paddle shaft via an opening in the upper end. To propel via paddling, the user leaves the sail stowed within the shaft. The propel via wind, the user deploys the sail out of the shaft, places the blade onto the board upper surface, and angles the paddle and sail to catch the wind and propel the user across the water.
Tue, 19 May 2015 08:00:00 EDTA swivel bracket is coupled via a horizontal bracket to a clamp bracket to be mounted on a vessel. A trim mechanism adjusts a trim angle of an outboard motor by rotating the swivel bracket about the horizontal shaft. The trim mechanism includes a trim cylinder coupled to the clamp bracket and a trim rod that is projectable and retractable from the trim cylinder. A thrust receiver is attached to the swivel bracket. The thrust receiver receives a load from the trim rod. The thrust receiver is grounded. The thrust receiver includes a conducting portion in contact with the trim rod.
Tue, 12 May 2015 08:00:00 EDTThe present invention relates to a watersport paddle blade comprising a throat configured to attach to a shaft, a power face attached to the throat, wherein the power face comprises a main channel beginning at or near the throat, extending along the center of the face and opening at a distal end of the blade, and a plurality of side channels connected to the center channel, wherein the side channels are slanted and extend from the lateral edge inwardly toward the center channel and are angled downwardly toward the distal end of the blade.
Tue, 12 May 2015 08:00:00 EDTDisclosed is a bicycle for water and land including: a first floating means, which is provided on and rotates with a front wheel frame that rotates in conjunction with a handlebar, for unfolding on both sides by means of buoyancy to buoy the front wheel frame when entering water; a second floating means, which is provided on a rear wheel frame, for unfolding on both sides by means of buoyancy to buoy the rear wheel frame when entering water; and propellers, which are provided on a plurality of spokes that are installed on the rear wheel frame so that the surfaces face the direction in which the rear wheel rotates, for generating propelling force in water.
Tue, 12 May 2015 08:00:00 EDTA 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.
Tue, 12 May 2015 08:00:00 EDTA jet boat including a hull including a keel extending in a fore and aft direction of the jet boat, at least one jet propulsion nozzle mounted to a rear of the hull, and an articulating keel attached at the rear of the hull, the articulating keel arranged to pivot about a pivot axis extending vertically or substantially vertically. A bottom surface of the articulating keel does not extend below a bottom surface of the keel when the articulating keel is parallel or substantially parallel to the fore and aft direction of the jet boat.
Tue, 05 May 2015 08:00:00 EDTThis invention relates to the field of very high current integrated power systems and defines a system where an alternating current inductive generator (13), controlled by a generator voltage regulator (14), is coupled to alternating current inductive load (11), controlled by an alternating current inductive load controller (12), all controlled by a supervisory control and data acquisition system (17) with externally adjustable power rate constraints (21) that define a new anticipatory mode integrated power system (10).
Tue, 05 May 2015 08:00:00 EDTAn improved variable pitch oarlock of a rowing shell, including a gate for securing an oar, which is adapted to swivel about a vertical pin of a rigger of the rowing shell. The improvement residing in the inclusion of horizontal pivot means adapted to vary the horizontal angular displacement of the gate as it swivels about the vertical pin. In operation, the pitch of the oar blade can be correspondingly varied and accurately determined during all phases of the rowing stroke. The horizontal pin also provides the mounting for force sensors; ensuring horizontal and/or vertical forces can be measured. Also claimed is a method of coaching or training rowing crew(s), utilizing the variable pitch oarlock as herein described, wherein force, angle and depth measurements are taken and analyzed.
Tue, 05 May 2015 08:00:00 EDTExhaust gas from an engine passes through a lower unit, and passes through a propeller boss coupled to a propeller shaft to be discharged into water. A stopper is provided at a rear end portion of a gear case of the lower unit, and a bush is inserted into and attached to an inner surface of the stopper. An inside diameter of the bush is set to substantially the same diameter as an outside diameter of a front end portion of the propeller boss, and the bush and the propeller boss are disposed by being overlapped with each other in an axial direction.
Tue, 05 May 2015 08:00:00 EDTThis 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 electric generator powering a pair of electric motors each coupled to a track assembly. Each electric motor and each air brakes are controlled separately to steer and brake the track assemblies.
Tue, 05 May 2015 08:00:00 EDTA jack plate for easily and effectively mounting a secondary motor to a pontoon boat. The mount comprises a horizontal supporting member affixable to a pontoon decking and a downward member rigidly and operably coupled to the horizontal supporting member and extending from the horizontal member downwardly, wherein the motor is operably coupled to the downward member. Optionally, the mount further comprises a supporting member operably coupled on a first end at an intermediate position to the downward member, wherein a second end of the supporting member is affixable to a pontoon hull extension.
Tue, 05 May 2015 08:00:00 EDTA propulsion device of the ship includes a port side screw propeller; and a starboard side screw propeller provided in a forward or backward direction in a longitudinal direction of the ship from the port side screw propeller, such that a part of propeller wings of the starboard side screw propeller overlaps with propeller wings of the port side screw propeller. One of the port side screw propeller and the starboard side screw propeller, which is on a forward side in a longitudinal direction of the ship, is the forward screw propeller, and the other is the backward screw propeller. The forward screw propeller has a wing shape by which tip vortex cavitation is more difficult to be generated by the forward screw propeller than the backward screw propeller.
Tue, 28 Apr 2015 08:00:00 EDTAn outboard motor configured so that an engine is covered by an engine cover, an intake opening is provided to both sides of the engine cover, and air drawn into the engine cover from the intake opening is introduced to a throttle body. A discharging/interference-type muffler is provided partway along an intake channel for guiding air from the intake opening to the throttle body. The discharging/interference-type muffler is provided vertically in the interior of the engine cover, and the interior of the discharging/interference-type muffler is divided in two in the vertical direction.
Tue, 28 Apr 2015 08:00:00 EDTAn outboard marine drive includes an upper powerhead having an engine, a downwardly depending driveshaft housing, and a lower gearcase having a propulsor for propelling a marine vessel. The engine has a removable oil filter for filtering lubricating oil for the engine, and a drip tray at the interface of the oil filter and the engine for collecting residual oil upon removal of the oil filter. The driveshaft housing has an oil sump below the engine and providing a reservoir for the lubricating oil. The oil sump has a drain fitting for draining oil therefrom. A connection hose extends from the drip tray downwardly to the oil sump drain fitting for delivering residual oil from the drip tray to the oil sump drain fitting and/or a valve.
Tue, 28 Apr 2015 08:00:00 EDTAn outboard motor includes an engine, a water intake opening arranged to suck in water, and a water supply path arranged to supply the water sucked in through the water intake opening to the engine. The engine includes a water path arranged to cause the water supplied from the water supply path to flow in a water jacket of a cylinder head, a water jacket of an exhaust pipe, and a water jacket of a cylinder block in this order.
Tue, 28 Apr 2015 08:00:00 EDTDisclosed 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.
Tue, 28 Apr 2015 08:00:00 EDTThe 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.
Tue, 28 Apr 2015 08:00:00 EDTDisclosed herein is a propulsion apparatus for ships. The propulsion apparatus, which includes a front propeller and a rear propeller to rotate in opposite directions and provides propulsion power to propel a hull of a ship, includes a power unit to supply power to rotate the rear propeller, a main shaft to transfer the power supplied from the power unit to the rear propeller, a hollow shaft extending in a longitudinal direction of the main shaft to allow the main shaft to pass therethrough and coupled to the front propeller, a drive motor including a rotor coupled to an outer circumferential surface of the hollow shaft and a stator supported by the hull, the drive motor rotating the hollow shaft in a direction opposite to a direction of rotation of the main shaft, and an electricity supply unit to supply electricity to the drive motor.
Tue, 28 Apr 2015 08:00:00 EDTA water vessel having variable geometry is described. The water vessel comprises: a frame; a plurality of hulls coupled to the frame, each one of the plurality of hulls coupled to the frame by a folding mechanism and configured to move, relative to the frame, between a deployed configuration and a stowed configuration in which at least one dimension of the water vessel is reduced in respect of the deployed configuration; a plurality of thruster assemblies configured to provide thrust to the water vessel, each one of the plurality of thruster assemblies being coupled to a respective one of the plurality of hulls; and a protective device coupled to a respective one of the plurality of thruster assemblies, the protective device for preventing intake of foreign objects into the respective one of the plurality of thruster assemblies.
Tue, 21 Apr 2015 08:00:00 EDTA system and method are for diagnosing a fault state of a shift linkage in a marine propulsion device. A control lever is movable towards at least one of a maximum reverse position and a maximum forward position. A shift linkage couples the control lever to a transmission, wherein movement of the control lever causes movement of the shift linkage that enacts a shift change in the transmission. A shift sensor outputs a position signal representing a current position of the shift linkage. A control circuit diagnoses a fault state of the shift linkage when after the shift change the position signal that is output by the shift sensor is outside of at least one range of position signals that is stored in the control circuit.
Tue, 21 Apr 2015 08:00:00 EDTThere is provided a portable (easily carried by one person), re-usable apparatus for protecting an engine of a watercraft by filling engine passageways with a protective fluid. The apparatus does not require a pump for the protective fluid. In operation, filling the container with protective fluid, clamping the flexible cup to the water intake ports, and opening the valve permits the running engine of the watercraft to suction protective fluid into cooling fluid passageways within the engine. The entire operation is carried out without a pump to pressurize the protective fluid, and minimizes fluid safe disposal requirements.
Tue, 21 Apr 2015 08:00:00 EDTA propeller nozzle for watercraft includes a stationary propeller and a nozzle ring that shrouds the propeller and can be pivoted by means of a nozzle shaft. The nozzle shaft is provided in the form of a hollow body in order to achieve a constructively simple and simultaneously stable connection between the nozzle shaft and the nozzle ring.
Tue, 14 Apr 2015 08:00:00 EDTA Forward Facing Rowing Apparatus and the associated vessel. The apparatus has a single attachment point and pivot assembly for supporting the oars. A built-in set of leaf spring elements reduce user effort by providing lifting force to raise the oar members. The apparatus is deployable on vessel hulls of virtually unlimited configuration, while still offering proper rowing leverage between the user's hands and the blades without the need for supplemental mounting systems or outriggers. The apparatus is stowable within the center area of the vessel hull. The positioning of the central pivot point for the oars can be adjusted along the axis of the vessel hull so that it can accommodate a wide variety of user preferences. An alternate design includes a foot-assisted sliding trolley mounting assembly that enables the user to add leg/foot power to the stroking motion. Furthermore, the apparatus is removable from the hull for transport or storage.
Tue, 14 Apr 2015 08:00:00 EDTAn activation and deactivation assembly for an electric outboard motor with an internal motor controller, a tiller arm, a handle mounted on the tiller arm, and a rotating knob attached to the distal end of the handle. The knob has a longitudinally aligned key slot that receives a complimentary shaped key. Located inside the handle is a reed switch and mounted on the key is a magnet that is magnetically attracted to the reed switch. An optional lanyard attaches the key to the tiller arm, an optional dead main lanyard is attached to the lanyard, and a linear hall effect sensor is located in the handle.
Tue, 14 Apr 2015 08:00:00 EDTA line collector for a marine propulsion unit comprises a spool-like body for collecting fishing line, nets, weeds, and other debris. The line collector can be positioned between two propellers to protect an internal seal of the marine propulsion unit.
Tue, 14 Apr 2015 08:00:00 EDTA tilt and lift jack plate comprising several components, in combination. There is a pair of transom mounting brackets and a pair of slide plate holders. A slide plate is slidably coupled to each of the slide plate holders. A tilting hydraulic cylinder ram mounting bracket is coupled to the slide plate. A lifting hydraulic cylinder ram bracket is coupled to the slide plate. The cylinders are coupled to a hydraulic pump and control valve.
Tue, 14 Apr 2015 08:00:00 EDTA marine outboard engine has an engine, a cowling, an alternator, and a controller electrically connected to the alternator. A primary charger is electrically connected to the alternator and is adapted to charge a primary energy storage device. A starter motor is selectively operatively connected to the engine and is adapted to be electrically connected to the primary energy storage device. An auxiliary charger is electrically connected to the alternator and is adapted to charge at least one auxiliary battery adapted to power an auxiliary device. The controller, the primary charger and the auxiliary charger are disposed inside the cowling. A vehicle bus connects the auxiliary charger with the controller to provide data from the controller to the auxiliary charger. A watercraft having the marine outboard engine and an auxiliary device is also disclosed.
Tue, 14 Apr 2015 08:00:00 EDTA vessel, including a transom for mounting outboard engines thereto, is spanned on opposite sides by aft-facing hull extensions which extend beyond the engines and allow a swim platform to be positioned between the hull extensions. The design allows the outboard engines to be covered with an engine cover, which provides an attractive vessel design in which the outboard engines can be concealed with a cover, which may serve other functions, such as a seat or the like. The cover houses an engine cowl mist shield which includes a support frame surrounding one or more outboard engines. The frame includes aperture(s) with edges spaced from the cowl and a flexible member extending from the edges to the cowl below the air intake of the cowl, such that spray and mist from the operation of the vessel does not reach the air intake of the cowl.
Tue, 14 Apr 2015 08:00:00 EDTA pedal control is applied to a trolling motor shaft to allow the driver of a boat to control the direction of the trolling motor from nearly any location within the boat to which the trolling motor is attached, the pedal control having a mechanical adjustable length extension rod between an adjustable height arm on the pedal and a bracket mounted to the trolling motor shaft with a universal joint applied at each end of the extension rod, allowing placement at a variety of distances and a variety of angles from the pedal on the floor of the boat to the trolling motor. A cut-off switch is optionally applied to the pivotal footplate on the pedal to turn the trolling motor on or off or remain at a constant speed.
Tue, 07 Apr 2015 08:00:00 EDTA water ski handle system used with a personal water ski towing watercraft that includes a handle component that selectively attaches to a standard water ski handle and contains a manual control module. The control module includes directional control buttons, power ON and OFF buttons, and power Up and Down buttons. Coupled to the control module is a self-correcting propulsion and steering system that senses undesirable changes to the watercraft's motion caused by the water-skier when pulled by the watercraft. When a difference is detected, a command module located in the watercraft automatically controls the watercraft's propulsion and steering systems so the watercraft follows the desired path and velocity. The system also includes an auto-back tracking feature that automatically reduces power to the last known marked geographic point the skier was upright.
Tue, 07 Apr 2015 08:00:00 EDTAn outboard motor and a method of making an outboard motor provide an exhaust conduit having a first end that receives exhaust gas from an internal combustion engine and a second end that discharges exhaust gas to seawater via a propeller shaft housing outlet. An exhaust conduit opening is formed in the exhaust conduit between the first and second ends. The exhaust conduit opening is for discharging exhaust gas from the exhaust conduit to atmosphere via a driveshaft housing of the outboard motor and via an idle exhaust relief outlet and a driveshaft housing outlet in the driveshaft housing. The driveshaft housing outlet is vertically located between the propeller shaft housing outlet and the idle exhaust relief outlet. A cooling pump pumps cooling water from a cooling water inlet for cooling the internal combustion engine to a cooling water outlet for discharging cooling water from the outboard motor. The exhaust conduit opening and cooling water outlet are configured such that the cooling water collects by gravity in the driveshaft housing to a level that is above the exhaust conduit opening.
Tue, 07 Apr 2015 08:00:00 EDTA system for providing sealed shaft bearing is disclosed. The system can include housing and one or more end caps. The end caps can house one or more seals and one or more bearings for supporting a shaft. The housing can be watertight to prevent water from infiltrating the housing and to prevent lubricant, if any, from escaping the housing into the environment. The system can use a multi-piece design to facilitate repair and maintenance. The system can be easily retrofitted into systems, such as marine systems, that use conventional plain shaft bearings.
Tue, 07 Apr 2015 08:00:00 EDTA water jet propulsion boat includes a boat body, an engine, a jet propulsion mechanism, a first accelerator operation section, a second accelerator operation section, a reverse gate, and a control section. The engine is accommodated in the boat body. The jet propulsion mechanism generates a propulsion power using a drive power from the engine. The reverse gate is arranged to move to a first position and to a second position. The boat body advances when the reverse gate is in the first position. The reverse gate reduces the propulsion power which advances the boat body when the reverse gate is in the second position. The control section is programmed to set the position of the reverse gate and a throttle opening of the engine based on an operation amount of the first accelerator operation section and an operation amount of the second accelerator operation section.
Tue, 07 Apr 2015 08:00:00 EDTA trim vane assembly for amphibious armored vehicles and having a trim vane movable along a generally horizontal path between a deployed position in which the trim vane extends rearward from the vehicle and a stowed position in which the trim vane is positioned beneath the amphibious vehicle. In the retracted position, the trim vane movable is flush against or received within the vehicle bottom such that the trim vane supplements the belly armor. Similarly, the trim vane extends from or overlaps with the bottom of the vehicle when extended into the deployed position to provide continuous bottom face of the vehicle extending from the front of the vehicle to the end of the trim vane. Conventional trim vanes are rotated between a vertical orientation against the rear of the vehicle and a horizontal position extending from the rear of the vehicle reducing viscous drag.
Tue, 31 Mar 2015 08:00:00 EDTA stand up paddle surfboard (SUPS) and associated paddle is provided. The SUPS may have up to two containers affixed generally towards the bow. A first container is designed to retain refuse and a second container is designed to retain game ball(s). The paddle includes a removable handle on a first side of a shaft and a paddle with a securable net and hook on the second side of the shaft. The securable net and hook may be employed to remove refuse found in the water and place such in the first container. The removable handle may be replaced with a game net permitting a host of ball toss games and the like to be played, using the second container to retain such balls. The SUPS and associated paddle may be modified for watersports as well as environmental cleanup activities.
Tue, 31 Mar 2015 08:00:00 EDTA water drop muffler for use in a marine exhaust system to silence exhaust noise while separating entrained water from exhaust gas using hydro-dynamic centrifugal separation principles enhanced by turbulent flow. A muffler housing defines an internal volume bounded by a generally vertically disposed cylindrical inner surface formed about a longitudinal axis. An exhaust inlet receives a mixture of exhaust gas and entrained cooling water. A flow channel transitions the flow for discharge through an opening thereby creating vortex flow within the housing to maximize the generation of centrifugal forces. Water is drawn toward the cylindrical inner surface and allowed drain from the housing.
Tue, 31 Mar 2015 08:00:00 EDTA 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.
Tue, 31 Mar 2015 08:00:00 EDTA steering system for a marine vessel which has a primary propulsion unit and an auxiliary propulsion unit is disclosed. In one embodiment, a cable extending through a tilt tube of the primary propulsion unit couples the primary propulsion unit to the auxiliary propulsion unit. In another embodiment, a cable extends through a support cable extending through a support rod of the primary propulsion unit couples the primary propulsion unit to the auxiliary propulsion unit.
Tue, 31 Mar 2015 08:00:00 EDTIn accordance with the present invention, there is provided a stand-up pedal board wherein propulsion is provided to the stand-up pedal board by applying alternating downward force to foot pedals to swing a fin side to side through transfer of energy from foot pedal shafts rotating around a T brace, swinging the bottom of the T brace, with the forward end of the fin rotating around a connector.
Tue, 31 Mar 2015 08:00:00 EDTA displace hull with a shape that is both laterally symmetric and fore-to-aft symmetric is disclosed. The hull includes a pair of channels that help to manage a flow of water around the hull. The hull also includes sponsons and propellers that are located amidships on the port and starboard sides.
Tue, 31 Mar 2015 08:00:00 EDTSteering apparatus having variable steering ratios are disclosed herein. An apparatus disclosed herein includes a steering drum to rotate about a longitudinal axis in a first direction and a second direction different than the first direction. The steering drum has a shape to provide a varying steering ratio when the steering drum is rotated.
Tue, 24 Mar 2015 08:00:00 EDTA vehicle propulsion system having a mount; a rotation shaft oriented substantially normal to a plane of travel of a vehicle; a fixture coupled to the rotation shaft, the fixture being rotatable about a rotation shaft axis of the rotation shaft; and an oar assembly coupled to the fixture; wherein the coupling is coupled to the fixture, wherein the rotation shaft axis is substantially normal to the rotational axis; wherein the coupling is coupled to the fixture to permit rotation of the oar assembly about the rotation axis when the lock is locked.
Tue, 24 Mar 2015 08:00:00 EDTA marine propulsion device includes an engine, an exhaust passage, a porous body, a retainer mat, and a stopper portion. The engine includes an exhaust port. The exhaust passage connects to the exhaust port. The porous body is disposed in the exhaust passage. The retainer mat covers the outside peripheral face of the porous body. The retainer mat retains the porous body. The stopper portion is disposed inside the exhaust passage. The stopper portion is disposed downstream of the porous body and spaced apart from a downstream-side end portion of the porous body. The stopper portion extends inwardly in the radial direction, past the outside peripheral surface of the porous body.
Tue, 24 Mar 2015 08:00:00 EDTAn outboard motor includes a cooling water passage that guides cooling water to cool an exhaust passage and a cylinder unit. A cooling water intake port draws external cooling water into the cooling water passage. A water pump draws cooling water into the cooling water intake port and supplies the cooling water to the cooling water passage. A thermostat is arranged in the cooling water passage downstream of the catalytic converter and the cylinder unit. A first bypass passage is connected to a first connecting section provided on the cooling water passage. The first connecting section is provided along the cooling water passage at a position farther downstream than the catalytic converter and farther upstream than the thermostat.
Tue, 24 Mar 2015 08:00:00 EDTThe present invention relates to a boat propelled by two submerged independent wings actuated by means of a step simulator mechanism that imparts an vertical alternating movement to the wings, which are articulated around a shaft located forward of the center of pressure thereof, such that the wings assume angles of inclination that generates propulsive force in the upward and downward movements. In the analogous position of a conventional bicycle, the driver actuates the footrests while seated. A handlebar, connected to a rudder, is used to maneuver the vehicle. The catamaran configuration offers hydrodynamic efficiency and stability. When disassembled, the mainframe of the boat can be converted into a step machine, simply fitting a pair of dampers to the structure, which absorb and dissipate the energy generated during exercising. Thus, the present invention has a dual use—boat and gymnastics apparatus—and can be transported in the car trunk.
Tue, 24 Mar 2015 08:00:00 EDTA streamlined amphibious, catamaran yacht is provided that may serve military or civilian purposes as a passenger or cargo carrying truck, limousine, bus, motor home or recreational vehicle on land, and extend those same functions on water, while matching the functionality and performance of similar length boats. The amphibious yacht includes a continuous reveal on the hull bottom from bow to transom that separates two asymmetric catamaran hulls. This reveal, or hull tunnel, may enhance sea stability and maneuverability, and create lift that helps the hull achieve plane and attain higher water speeds.