FUNNEL STRUCTURE IN AIR CLEANER

To improve intake efficiency with a simple structure and to improve an output of an internal combustion engine in a funnel structure provided with an upper funnel and a lower funnel in an air cleaner.SOLUTION: An air cleaner 6 is communicated with a throttle body 5 connected to an internal combustio...

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Bibliographic Details
Main Authors ENDO KENTA, NAKAMURA KENICHIRO
Format Patent
LanguageEnglish
Japanese
Published 17.09.2020
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Summary:To improve intake efficiency with a simple structure and to improve an output of an internal combustion engine in a funnel structure provided with an upper funnel and a lower funnel in an air cleaner.SOLUTION: An air cleaner 6 is communicated with a throttle body 5 connected to an internal combustion engine 3 to include a throttle valve 51 formed by a butterfly valve. In a funnel structure in the air cleaner including: a cleaner element 61 dividing the air cleaner into a dirty side 63 with an air inlet port 65 for sucking air provided and a clean side 64 connected to the throttle body; a lower funnel 72 arranged in the clean side and disposed in a connection part to the throttle body 5; and an upper funnel 71 disposed at a position separated from an upstream side end surface 72a in an intake flow direction of the lower funnel by a prescribed distance, a center axis Y of the upper funnel is offset on an opposite side from the cleaner element in parallel with a center axis X of the lower funnel.SELECTED DRAWING: Figure 2 【課題】エアクリーナ内に上方ファンネルと下方ファンネルを設けたファンネル構造において、簡易な構造で吸気効率の向上、内燃機関の出力の向上を図る。【解決手段】内燃機関3に接続されてバタフライ弁で構成されたスロットル弁51を備えるスロットルボディ5に連設されたエアクリーナ6であって、エアクリーナ内を、空気を吸入する吸気口65が設けられたダーティーサイド63とスロットルボディに接続されたクリーンサイド64とに区画するクリーナエレメント61と、クリーンサイド内に配置され、スロットルボディ5との接続部に設けられた下方ファンネル72と、下方ファンネルの吸気流れ方向の上流側端面72aと所定距離離間された位置に設けられた上方ファンネル71とを有するエアクリーナ内のファンネル構造において、上方ファンネルの中心軸線Yが、下方ファンネルの中心軸線Xに対して平行にクリーナエレメントと反対側にオフセットされた。【選択図】図2
Bibliography:Application Number: JP20190048922