公开(公告)号：US20230135883A1

公开(公告)日：2023-05-04

申请号：US17885599

申请日：2022-08-11

Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA

Inventor： Takuma ISHIDA ,  Junya TSUKADA ,  Junya ONOUE

IPC: B63B35/32 ,  B63B1/12 ,  E02B15/10

Abstract: A garbage collection watercraft includes a hull, a collection box, and a buoyant material. The collection box includes an intake port to receive garbage. The collection box is held by the hull so as to be movable between a collection position and a pull-up position. The collection box is at least partially located underwater at the collection position. The pull-up position is located higher than the collection position. The buoyant material is attached to the collection box. The buoyant material raises the collection box from the collection position to the pull-up position by a buoyant force.

公开(公告)号：US20230415876A1

公开(公告)日：2023-12-28

申请号：US18079925

申请日：2022-12-13

Applicant: YAMAHA HATSUDOKI KABUSHIKI KAISHA

Inventor： Kimitaka SARUWATARI ,  Yu WAKAMIZU ,  Daisuke KOYAMA ,  Masashi HIROTA ,  Takuma ISHIDA

IPC: B63H20/16 ,  B63H20/12 ,  B63H20/26

CPC classification number: B63H20/16 ,  B63H20/12 ,  B63H20/26

Abstract: An outboard motor includes an engine, a propeller shaft, a propeller attached to the propeller shaft, a transmission to transmit rotation of the engine to the propeller shaft, an upper accommodation body accommodating a portion of the engine, a lower accommodation body accommodating a portion of the propeller shaft, and a steering to cause the lower accommodation body to rotate about a steering axis with respect to the upper accommodation body. The upper accommodation body includes an upper exhaust channel including an upper exhaust port that communicates with the engine. The lower accommodation body includes a lower exhaust channel including a lower exhaust port. The upper exhaust channel and the lower exhaust channel are switchable between a communication state of communicating with each other and a non-communication state of not communicating with each other based on a rudder angle of the steering.