JPH0222640U

JPH0222640U -

Info

Publication number: JPH0222640U
Application number: JP9990588U
Authority: JP
Priority date: 1988-07-29
Filing date: 1988-07-29
Publication date: 1990-02-15

Description

[Brief explanation of drawings]

第１図ａは実施例のエンジンのスロツトル弁操
作装置が非動作時すなわち、アクセルを操作して
いない状態を図示した略図、第１図ｂはエンジン
が冷間時にアクセル５を全開した様子を図示した
略図、第１図ｃはエンジンが温間時にアクセル５
を全開した様子を図示した略図、第２図は、第１
スプリング１２が切断された状態を示した略図、
第３図は、以上略図に基づいて説明したエンジン
のスロツトル弁操作装置の実体側面図、第４図ａ
は、セカンダリ弁２の回動機構を図示した外観斜
視図、第４図ｂはセカンダリ回動軸６の中心断面
図、第５図ａは従来のスロツトル弁操作装置が非
動作時すなわち、アクセルを操作していない状態
を図示した略図、第５図ｂはエンジンが冷間時に
アクセル５を全開した様子を図示した略図、第５
図ｃはエンジンが温間時にアクセル５を全開した
様子を図示した略図である。図中、１……プライマリ弁、２……セカンダリ
弁、３……ダンパースプリング、４……プライマ
リ弁回動軸、５……アクセル、６……セカンダリ
弁回動軸、７……ストツパー、８……ワツクス装
置、９，９０……ダンパー装置、１０……プライ
マリ吸気通路、１１……第１レバー、１２……第
１スプリング、１３……第２レバー、１４……第
２スプリング、１５……第３レバー、１６……ス
トツパーカム、２０……セカンダリ吸気通路、３
０……リンケージである。 Fig. 1a is a schematic diagram illustrating a state in which the throttle valve operating device of the engine of the embodiment is not operating, that is, the accelerator is not operated, and Fig. 1b is a diagram illustrating a state in which the accelerator 5 is fully opened when the engine is cold. The schematic diagram shown in Figure 1c shows the accelerator 5 when the engine is warm.
A schematic diagram showing the fully opened state, Figure 2 is the first
A schematic diagram showing a state in which the spring 12 is cut,
FIG. 3 is an actual side view of the engine throttle valve operating device explained based on the above schematic drawings, and FIG. 4a
is an external perspective view illustrating the rotation mechanism of the secondary valve 2, FIG. 4b is a central sectional view of the secondary rotation shaft 6, and FIG. Fig. 5b is a schematic diagram illustrating a state in which the engine is not operated;
FIG. c is a schematic diagram illustrating a state in which the accelerator 5 is fully opened when the engine is warm. In the figure, 1...Primary valve, 2...Secondary valve, 3...Damper spring, 4...Primary valve rotating shaft, 5...Accelerator, 6...Secondary valve rotating shaft, 7...Stopper, 8 ... Wax device, 9,90... Damper device, 10... Primary intake passage, 11... First lever, 12... First spring, 13... Second lever, 14... Second spring, 15... ...Third lever, 16...Stopper cam, 20...Secondary intake passage, 3
0...Linkage.

Claims

[Claims for Utility Model Registration] The opening/closing operation of the primary valve and the opening/closing operation of the secondary valve are operated in conjunction with each other via a spring means of a linkage, and a regulating means is provided for regulating the opening degree of the secondary valve when the engine is cold. A throttle valve operating device for an engine comprising: a first lever biased in a direction to open the secondary valve by the spring means interlocked with the opening/closing operation of the primary valve; a second lever that locks onto the first lever during directional operation; and a third lever that opens and closes the secondary valve, has an opening degree regulated by the regulating means, and that operates integrally with the secondary valve; A throttle valve for an engine, comprising a biasing means for increasing a biasing force of the third lever in the opening direction of the secondary valve in accordance with the amount of actuation of the second lever in the opening direction of the secondary valve. Operating device.