Outboard motor engine cover and outboard motor

Patent metadata

Field	Value
Publication number	US-11760458-B2
Application number	US-202117520780-A
Country	US
Kind code	B2
Filing date	Nov 8, 2021
Priority date	Dec 28, 2020
Publication date	Sep 19, 2023
Grant date	Sep 19, 2023

Abstract

An outboard motor includes an engine to rotate a propeller and an engine cover that houses the engine. The engine cover includes two divided covers disposed above the engine and that directly face the engine. The two divided covers include two connections that are connected together and that overlap the engine in a plan view.

First claim

What is claimed is:

1. An engine cover for an outboard motor that houses an engine, the engine cover comprising:
two divided covers disposed above and directly facing the engine; wherein
the two divided covers include two connections that are connected to each other and overlap the engine in a plan view;
the two divided covers include two bands that define a cylindrical air intake ring through which air to be supplied to the engine passes;
the two bands are fitted to each other at each end of the two bands;
the two connections include each end of the two bands; and
an outer diameter of the air intake ring becomes larger as the air intake ring extends toward a front end of the air intake ring.

2. The engine cover according to claim 1 , wherein
an inner diameter of the air intake ring continuously or stepwisely becomes larger as the air intake ring extends toward the front end of the air intake ring; and
a maximum value of the inner diameter of the air intake ring is larger than a minimum value of the outer diameter of the air intake ring.

Assignees

• Yamaha Motor Co Ltd

Inventors

• Hasegawa Hiroyuki
• Matsui Takahiro
• Hata Ryosuke

Classifications

• B63H20/32 Primary

  Housings {(air intakes for outboard engines F02M35/167)} · CPC title

• F02M35/10006

  characterised by the position of elements of the air intake system in direction of the air intake flow, i.e. between ambient air inlet and supply to the combustion chamber · CPC title

• F02M35/1015

  characterised by the engine type (engine intake manifolds F02M35/104) · CPC title

• F02M35/167

  having outboard engines; Jet-skis · CPC title

• F02B61/045

  for marine engines · CPC title