JPS61187949U

JPS61187949U -

Info

Publication number: JPS61187949U
Application number: JP7144385U
Authority: JP
Priority date: 1985-05-16
Filing date: 1985-05-16
Publication date: 1986-11-22

Description

[Brief explanation of the drawing]

第１図はこの考案の一実施例を示す全体図、第
２図はサーモバルブの作動状態図、第３図は他の
実施例の要部を示す部分図である。図面に表われた符号の説明、１……気化器、６
……チヨークバルブ、７……絞弁、８，２４……
完爆ダイヤフラム装置、９，２５……第１ダイヤ
フラム、１０……第２ダイヤフラム、１１……第
３ダイヤフラム、１２……第１負圧室、１３……
第２負圧室、１４……第３負圧室、１５，２６…
…第１ストツパ、１６……第２ストツパ、１７，
２７……スプリング、１８……第３ストツパ、１
９，２０……サーモバルブ（機関温度検出器）、
２３ａ，２３ｂ……エアフイルタ（大気通路）、
３０……リンク、３１，３２，３３……吸入負圧
通路。 FIG. 1 is an overall view showing one embodiment of this invention, FIG. 2 is a diagram showing the operating state of a thermovalve, and FIG. 3 is a partial view showing the main parts of another embodiment. Explanation of symbols appearing in the drawings, 1... Carburizer, 6
...Chiyoke valve, 7...throttle valve, 8,24...
Complete explosion diaphragm device, 9, 25... first diaphragm, 10... second diaphragm, 11... third diaphragm, 12... first negative pressure chamber, 13...
Second negative pressure chamber, 14... Third negative pressure chamber, 15, 26...
...First stopper, 16...Second stopper, 17,
27...Spring, 18...Third stopper, 1
9, 20...Thermo valve (engine temperature detector),
23a, 23b...air filter (atmospheric passage),
30... Link, 31, 32, 33... Suction negative pressure passage.

Claims

[Scope of utility model registration request]

A first negative pressure chamber, a second negative pressure chamber, and a third negative pressure chamber are separated by a first diaphragm, a second diaphragm, and a third diaphragm. are provided with a first stopper and a second stopper that restrict the movement of the second diaphragm and the third diaphragm in one direction, respectively, and between the first diaphragm and the second diaphragm or between the first diaphragm and the first stopper. a spring is provided between the third diaphragm, and a third stopper is provided integrally with the third diaphragm to restrict movement of the second diaphragm in other directions;
Each of the suction negative pressure passages communicating with the second negative pressure chamber and the third negative pressure chamber is provided with an engine temperature detector that switches from the atmospheric passage to the suction negative pressure passage at the first set engine temperature and the second set engine temperature. , a complete explosion diaphragm device for a carburetor in which a first diaphragm is connected to a choke valve.