The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 21, 2025

Filed:

Jul. 12, 2023
Applicant:

Yamaha Hatsudoki Kabushiki Kaisha, Iwata, JP;

Inventors:

Kimitaka Saruwatari, Shizuoka, JP;

Hiroshi Suzuki, Shizuoka, JP;

Masaya Oishi, Shizuoka, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B63H 21/21 (2006.01); F02D 41/06 (2006.01);
U.S. Cl.
CPC ...
B63H 21/21 (2013.01); F02D 41/064 (2013.01); F02D 41/065 (2013.01); B63H 2021/216 (2013.01);
Abstract

A marine propulsion device that reduces white smoke generated during starting includes an engine, a crankshaft, a tilt angle sensor, and an ECU. The engine includes a cylinder, a piston inside the cylinder, and a connecting rod connected to the piston. The crankshaft is connected to the connecting rod. The tilt angle sensor is operable to detect a tilt state of the cylinder such that a first side portion thereof located on an opposite side from the crankshaft is lower than a second side portion thereof located on a same side as the crankshaft. The ECU is configured or programmed to execute a cranking control of a prolonged cranking time based on the tilt state of the cylinder and a stopped time of the engine.


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