JPS63162971U - - Google Patents

Description

【図面の簡単な説明】[Brief explanation of the drawing]

第１図、第２図は本考案の実施例を示す平面図
と開閉弁部分の正面図、第３図は切欠部の面積比
と吸気量分担率の関係を示すグラフ、第４図、第
５図は本考案の他の実施例を示す開閉弁部分の正
面図、第６図、第７図は従来例の平面図とそのＡ
―Ａ線断面図である。 ２１……第１の吸気弁、２２……第２の吸気弁
、２３……第１の吸気ポート、２４……第２の吸
気ポート、２６……開閉弁、２８……切欠部、２
９……燃料噴射弁、３０……分流部。 Figures 1 and 2 are a plan view and a front view of the on-off valve portion showing an embodiment of the present invention, Figure 3 is a graph showing the relationship between the area ratio of the notch and the intake air amount share, and Figures 4 and 2 are Fig. 5 is a front view of the opening/closing valve part showing another embodiment of the present invention, and Figs. 6 and 7 are plan views of the conventional example and its A.
-A sectional view taken along line A. 21...First intake valve, 22...Second intake valve, 23...First intake port, 24...Second intake port, 26...Opening/closing valve, 28...Notch, 2
9... Fuel injection valve, 30... Diversion section.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 気筒毎に第１、第２の吸気弁と、第１、第２の
吸気通路を備え、第２の吸気通路に開閉弁を介装
した内燃機関の吸気装置において、前記開閉弁に
両吸気通路の境界側に位置して切欠部を設けると
共に、両吸気通路の分流部の直上流に燃料噴射弁
を前記切欠部に対応して分流部中心から第１の吸
気通路側に所定量オフセツトして設置したことを
特徴とする内燃機関の吸気装置。 In an intake system for an internal combustion engine, the intake system for an internal combustion engine is provided with a first and second intake valve and a first and second intake passage for each cylinder, and an on-off valve is interposed in the second intake passage. A notch is provided on the boundary side of the two intake passages, and a fuel injection valve is provided immediately upstream of the dividing part of both intake passages, and is offset by a predetermined amount from the center of the dividing part to the first intake passage in correspondence with the notch. An intake system for an internal combustion engine, characterized in that: