Sanshin Kogyo Kabushiki Kaisha

Yamaha Hatsudoki Kabushiki Kaisha

Yamaha Marine Kabushiki Kaisha

Sanshin Kabushiki Kaisha

Noriyoshi Hiraoka

Masanori Takahashi

Takayoshi Suzuki

Akihiro Onoue

Atsushi Kumita

Yoshiaki Tasaka

Hitoshi Watanabe

Goichi Katayama

Atsushi Isogawa

Kazuhiko Watanabe

Yu Ito

Mitsuru Nagashima

Satoshi Ishikawa

Masaki Okazaki

Kazutoshi Takashima

Ryoma Matsuo

Kazuhiro Nakamura

Yoshibumi Iwata

Takayuki Sato

Hiroshi Oishi

Hiroaki Takase

Yutaka Okamoto

Toyoshi Suzuki

Takao Nagai

In a rotating electrical machine apparatus, a rotor portion provided in a cylindrical portion and a stator portion provided in a recessed portion in which the rotor portion is housed are aligned along the rotation axis of a rim such that a force is generated in a direction opposite to the direction of a load that acts along the rotation axis of the rim of loads that act on the rim following rotation of a blade.

Rotating electrical machine apparatus

An electric propulsion device includes a duct having a cylindrical shape and that includes a stator. A rim includes a rotor rotatable relative to the duct, and a plurality of fins. A bracket supports the duct so as to allow the duct to turn about a turning axis that intersects with the rotation axis of the rim, and a turning actuator that integrally turns the duct and the rim. The turning actuator is fixed to the bracket, and the duct is turnable relative to the bracket.

Electric propulsion device

A marine propulsion device includes a power source, a steering handle, and an accelerator grip that moves with respect to the steering handle. A movement region of the accelerator grip includes a forward movement rotation region, a reverse movement rotation region and an axis movement region. In the forward movement rotation region, the accelerator grip is operated to rotate so as to obtain a drive force in a forward movement direction. In the reverse movement rotation region the accelerator grip is operated to rotate so as to obtain a drive force in a reverse movement direction. The axis movement region is provided between the forward movement rotation region and the reverse movement rotation region. In the axis movement region, the accelerator grip is moved in the extensional direction of a rotation axis.

Marine propulsion device

A boat maneuvering system includes a power source, a first operating device configured to operate the power source, a first controller configured to control the power source, a second controller configured to accept an operation instruction input from the first operating device and to output a control signal to the first controller, a first electric power line that connects the power source to a battery to convey electric power therebetween, a second electric power line that connects the second controller to the battery to convey electric power therebetween, a communication path that connects the first controller and the second controller to convey a signal therebetween, and a signal conversion portion provided on the communication path to electrically separate the first and second controllers.

Boat maneuvering system

A boat maneuvering system includes a power source, a first controller that controls the power source, a display device that has a touch panel function and displays an operation screen configured to operate the movement of a boat, and a second controller that is communicatively connected to the first controller and enables an operation of the boat through the operation screen when detecting a plurality of operations on the display device simultaneously.

A boat maneuvering system, including a first power source having a first controller, a first operating device having a second controller configured to receive a first operation instruction and to output a first control signal for controlling the first power source, a second power source provided separately from the first power source, and a second operating device provided separately from the first operating device for operating the first and second power sources. The second operating device includes a third controller provided on a communication path connecting the first and second controllers, the third controller being configured to receive the first control signal, generate a second control signal, and output the second control signal to the first controller, and to receive a second operation instruction via the second operating device, generate a third control signal, and output the third control signal to the second power source.

A marine vessel propulsion device includes a bracket that is attachable to a marine vessel, a duct that is rotatable around a steering axis with respect to the bracket, a propeller that is rotatable with respect to the duct around a propeller axis extending in a direction perpendicular or substantially perpendicular to the steering axis, and an electric motor that rotates the propeller. The propeller includes a plurality of blades and a cylindrical rim that surrounds the plurality of blades, and is surrounded by the duct. The electric motor rotates the rim with respect to the duct.

Marine vessel propulsion device

A marine vessel propulsion device includes a propeller rotatable around a propeller axis, a duct that surrounds the propeller around the propeller axis, an internal combustion engine that rotates the propeller relative the duct, and an electric motor that rotates the propeller relative to the duct. The propeller includes a plurality of blades, and a cylindrical rim that surrounds the plurality of blades around the propeller axis. The electric motor rotates the propeller by rotating the rim.

An outboard motor has an engine, a cowling for accommodating the engine, and an air duct for introducing ambient air into the cowlingAn air filter is provided in the air duct. One or more sensors detect when the air filter is clogged. When air filter clogging is detected, a warning signal is triggered.

Outboard motor

A lubrication system of an outboard motor delivers lubricant to an internal combustion engine. The internal combustion engine is supported by an upper end of a case. The lubrication system has an oil pan configured to hold lubricant oil. An oil conduit has a lower end opening to the oil pan. An upper end of the oil conduit extends towards the internal combustion engine. An oil pump delivers the lubricant oil towards the internal combustion engine through the oil conduit. The oil pump is located in the vicinity of a front part of the oil pan as viewed from the side of the outboard motor. An inside bottom surface of the oil pan defines a lower bottom portion and an upper bottom portion. The lower bottom portion is located under the lower end of the oil conduit. The upper bottom portion of the oil pan is positioned rearward of the lower bottom portion.

Outboard motor lubrication system

An outboard motor comprises a cowling, having a top cowling and a bottom cowling, that cooperate to define an engine compartment. An intake air duct draws outside air into the engine compartment. A water collecting part is arranged in the bottom cowling for accumulating water that may enter the cowling through the air duct. A water passage may also be provided for guiding water from the intake air duct to the water collecting part. The water passage may have air openings for allowing air to enter the engine compartment independent of the water. A floor of the engine compartment may be adapted to contain water splashing and direct water to a water collecting part.

An outboard motor has a cowling for enclosing an engine. Air inlet openings are formed in the cowling. An air intake chamber connects the air inlet openings and an air intake duct. Air that flows through the air inlet openings passes through the air intake chamber to the air intake duct. The air is then introduced into the engine. A front wall of the air intake chamber has a center portion positioned rearwardly of outer portions of the front wall. The air intake duct is positioned rearwardly of the front wall of the air intake chamber. The air inlet openings are positioned on both sides of the air intake duct. A rear wall is positioned rearwardly of the air intake duct. Each of the air inlet openings extends from the rear wall to one of the outer ends of the front wall of the air intake chamber.

A lubrication system for a direct injected V-type two-cycle engine is disclosed having a lubricant pump adapted to discharge lubricant into each crankcase chamber of the engine through ports positioned adjacent the downstream side of reed valves of the air intake system. Ports supplying lubricant to cylinders in the right cylinder bank of the engine extend through a left wall of the corresponding crankcase chamber. Ports supplying lubricant to cylinders in the left cylinder bank of the engine extend through a right wall of the corresponding crankcase chamber. During engine assembly, the lubricant pump is manually driven before it is mechanically installed so as to fill the attached supply hoses with lubricant. The pump delivers lubricant to each crankcase chamber at a rate high enough to avoid lubricant carbonization at engine idle and low enough to avoid lubricant resistance to crankshaft rotation, which may make the engine difficult to start.

Lubrication system for direct injected engine

An oil pump for a lubricating system of an outboard motor is disclosed. The motor has a cowling defining an engine compartment, a water propulsion device, and a guide member having an upper surface and a lower surface, the guide member positioned in the cowling and generally dividing the engine compartment into an upper part and a lower part. An engine is positioned in the upper part of the engine compartment within the cowling and has an output shaft arranged to drive the water propulsion device. The lubricating system includes an oil pan positioned below the guide member and an oil passage leading from the pan through the guide member. The oil pump is positioned in the upper part of the engine compartment, but below the engine, and is driven by a lower end of the output shaft of the engine which extends below the engine, the oil pump having an oil inlet in communication with the oil passage through the guide member.

Growing community of inventors

Shizuoka-ken, Japan

Noriyoshi Hiraoka