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.
Patent No.:
Date of Patent:
Sep. 30, 2008
Filed:
Oct. 10, 2006
Kazuyoshi Sato, Wako, JP;
Hiroshi Watanabe, Wako, JP;
Toshiaki Ogawa, Wako, JP;
Tetsu Wada, Wako, JP;
Toyokazu Kawasaki, Wako, JP;
Kazuyoshi Sato, Wako, JP;
Hiroshi Watanabe, Wako, JP;
Toshiaki Ogawa, Wako, JP;
Tetsu Wada, Wako, JP;
Toyokazu Kawasaki, Wako, JP;
Honda Motor Co., Ltd., Tokyo, JP;
Abstract
An outboard motor has an internal combustion engine with a carburetor. The carburetor is designed to extend maintenance interval greatly by preventing or suppressing the deposition of solid matters in the gap between the intake passage and a butterfly-type throttle valve therein. The throttle valve is divided, by a valve axis about which the throttle valve turns, into a first valve part that turns from the downstream side to the upstream side with respect to an air intake direction when the fully closed throttle valve is opened and a second valve part that turns from the upstream side to the downstream side with respect to the air intake direction when the fully closed throttle valve is opened. The first valve part has an edge that moves to the upstream side past bypass ports when the fully closed throttle valve is opened, and the second valve part is provided with a through hole that allows air to flow therethrough at a flow rate necessary for idling when the throttle valve is fully closed.