JPS5879061U

JPS5879061U - Internal combustion engine intake passage device

Info

Publication number: JPS5879061U
Application number: JP17326581U
Authority: JP
Inventors: 松本　泰郎; 江藤　幸寛; 牛島　優示
Original assignee: 日産自動車株式会社
Priority date: 1981-11-24
Filing date: 1981-11-24
Publication date: 1983-05-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す概略縦断面図、第２図
は同上の横断面図、第３図Ａは第２図のＡ−Ａ矢視断面
図、第３図Ｂは同図ＡのＢ−Ｂ矢視断面図、第３図Ｃは
第３図ＡのＣ矢視図である。第４図は本考案の主通路に
介装した絞り弁下流の容積に応じた吸入空気量の応答特
性と燃料供給特性と、これらに基づいた空燃比の応答特
性を示すグラフ、第５図は本考案の他の実施例を示すも
ので゛縦断面概略図、第６図は同上の横断面概略図、第
７図は本考案の他の実施例を示す横断面概略図、第８図
〜第１１図は他の変形例を示すもので第８図は横断面概
略図、第９図は縦断面概略図、第１０図は横断面概略図
、第１１図Ａは縦断面概略図、第１１図Ｂは同上の横断
面概略図である。１・・・シリンダヘッド、２・・・吸気マユフォールド
、Ａ、　Ａ’・・・通路連絡マユフォールド、４・・・
主通路、４ａ・・・主通路部、７・・・副通路、７ａ・
・・副通路部、９・・・連通孔、１０．１０’・・・絞
り弁、１３・・・冷却水通路、１４・・・副通路加熱部
、１５・・・フランジ部、１６・・・ボルト通し孔。１Ａミ　　　　　　　　　　　１（Ａ）　　　　　　　　　　　　　（Ｃ）−第５図第９図（Ａ）（Ｂ）Fig. 1 is a schematic longitudinal cross-sectional view showing one embodiment of the present invention, Fig. 2 is a transverse cross-sectional view of the same, Fig. 3A is a cross-sectional view taken along the line A-A in Fig. 2, and Fig. 3B is the same. FIG. 3C is a sectional view taken along the line B-B in FIG. 3A, and FIG. 3C is a sectional view taken along the line C in FIG. 3A. Figure 4 is a graph showing the response characteristics of the intake air amount and fuel supply characteristics according to the volume downstream of the throttle valve installed in the main passage of the present invention, and the response characteristics of the air-fuel ratio based on these. 6 is a schematic cross-sectional view of the same as above, FIG. 7 is a schematic cross-sectional view of another embodiment of the present invention, and FIGS. Fig. 11 shows another modification, in which Fig. 8 is a schematic cross-sectional view, Fig. 9 is a schematic longitudinal cross-section, Fig. 10 is a schematic cross-sectional view, Fig. 11A is a schematic longitudinal cross-section, and Fig. FIG. 11B is a schematic cross-sectional view of the same as above. 1... Cylinder head, 2... Intake eyebrow fold, A, A'... Passage connecting eyebrow fold, 4...
Main passageway, 4a...Main passageway section, 7...Sub-passageway, 7a.
... Sub-passage part, 9... Communication hole, 10.10'... Throttle valve, 13... Cooling water passage, 14... Sub-passage heating part, 15... Flange part, 16...・Bolt through hole. 1A Mi 1 (A) (C) - Figure 5 Figure 9 (A) (B)

Claims

[Scope of utility model registration request]

An intake passage is constituted by two passages: a main passage and a sub passage having a cross-sectional area smaller than the main passage and having an intake air heating means, and the main passage is provided with a throttle valve that variably controls the passage cross-sectional area, An intake passage device for an internal combustion engine, characterized in that a passage connecting eyebrow fold constituting a confluence between the main passage and the outlet of the sub-passage is sandwiched and supported between an intake eyebrow fold and a cylinder head.