JPS6186540U

JPS6186540U -

Info

Publication number: JPS6186540U
Application number: JP17154584U
Authority: JP
Priority date: 1984-11-12
Filing date: 1984-11-12
Publication date: 1986-06-06

Description

[Brief explanation of the drawing]

第１図はこの考案に係るスロツトルボデイ構造
が適用される吸気制御装置を示す断面図、第２図
はこの考案に係るスロツトルボデイ構造を示す側
面図、第３図は同スロツトルボデイ構造に供され
る絞弁の斜視図、第４図Ａは絞弁が僅かに回動し
た状態を示す正面図、同図Ｂは同側面図、第５図
Ａは絞弁が角度θまで回動した状態を示す正面図
、同図Ｂは同側面図、第６図Ａは絞弁が角度θ以
上に回動した状態を示す正面図、同図Ｂは同側面
図、第７図は従来と本考案のスロツトルボデイ構
造による開口面積変化を比較して示す特性図、第
８図は同各スロツトルボデイ構造による吸入空気
量変化を比較して示す特性図、第９図は従来のス
ロツトルボデイ構造を示す正面図、第１０図は同
従来のスロツトルボデイ構造を示す斜視図である
。１１…スロツトルボデイ、１２…絞弁、１２ａ
…一側面、１２ｂ…他側面、３０…スロツトルシ
ヤフト、３１…吸気通路、３１ａ…内壁面、３２
…切欠部、３３…球面部。 Fig. 1 is a sectional view showing an intake control device to which the throttle body structure of this invention is applied, Fig. 2 is a side view of the throttle body structure of this invention, and Fig. 3 is a throttle valve provided to the throttle body structure. 4A is a front view showing a state in which the throttle valve is slightly rotated, FIG. 4B is a side view of the same, and FIG. 5A is a front view showing a state in which the throttle valve is rotated to an angle θ. , Figure B is a side view of the same, Figure 6A is a front view showing a state in which the throttle valve has been rotated by an angle of θ or more, Figure B is a side view of the same, and Figure 7 shows the throttle body structures of the conventional and the present invention. Figure 8 is a characteristic diagram that compares changes in opening area, Figure 8 is a characteristic diagram that compares changes in intake air amount due to the same throttle body structures, Figure 9 is a front view of a conventional throttle body structure, and Figure 10 is the same. FIG. 2 is a perspective view showing a conventional throttle body structure. 11... Throttle body, 12... Throttle valve, 12a
...One side, 12b...Other side, 30...Throttle shaft, 31...Intake passage, 31a...Inner wall surface, 32
...Notch part, 33... Spherical part.

Claims

[Scope of utility model registration request]

In the throttle body structure of the intake system, which controls the amount of intake air into the engine by rotating a throttle valve disposed in the intake passage via a throttle shaft in accordance with the amount of depression of the accelerator pedal, the throttle body is formed with a thick wall. A substantially conical notch is formed in the upper end of one side of the throttle valve and the lower end of the other side thereof, and a spherical surface that is in close contact with the inner wall surface of the intake passage is formed in the entire area of both sides fixed to the throttle shaft. A throttle body structure of an intake device characterized in that a part is formed.