Honda Motor Co., Ltd.

Honda Giken Kogyo Kabushiki Kaisha

Haruhiko Ohkawa

Taiichi Otobe

Toyokazu Kawasaki

Kazuyuki Shiomi

Tamotsu Momosaki

A watercraft propulsion machine equipped with an outboard motor is provided. The propulsion machine includes a propulsion machine body and the outboard motor. The propulsion machine body is detachably mountable to a hull. The outboard motor is mounted on a rotary shaft provided at the rear of the propulsion machine body and oriented longitudinally of the propulsion machine body. The outboard motor is fixedly mounted on the rotary shaft which is rotatably mounted to the propulsion machine body, and is swingable relative to the propulsion machine body.

Watercraft propulsion machine

A removable marine propulsion attachment for a non-self-propelled marine vehicle includes a frame structure and a propulsion unit removably mounted on a transom board disposed at the rear end of a body of the frame structure. The frame structure also includes a handle disposed at the front end of the frame body for holding by a person riding on the marine vehicle, and connecting devices provided on the frame body for removably connecting the frame body to the marine vehicle.

Marine propulsion attachment with removable frame structure for non-self-propelled marine vehicles

An oil-cooled engine assembly is provided for cooling lubricating oil, which has lubricated movable parts of an engine and subsequently recirculating cooled lubricating oil to the movable parts. The engine assembly includes a lubricating oil pump contained in the engine, and a hollow frame body which supports the engine. The hollow frame body has an oil passage through which lubricating oil flows. The lubricating oil pump is connected to the oil passage. Lubricating oil, which has lubricated the movable parts of the engine is air cooled with the frame body. Cooled lubricating oil is circulated again to the movable parts of the engine.

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Wako, Japan

Haruhiko Ohkawa