JPS6284655U

JPS6284655U -

Info

Publication number: JPS6284655U
Application number: JP17497685U
Authority: JP
Priority date: 1985-11-15
Filing date: 1985-11-15
Publication date: 1987-05-29

Description

[Brief explanation of the drawing]

第１図は系統説明図、第２図は一部切断側面図
、第３図は一部の拡大縦断面図、第４図は他の実
施例の一部切断側面図、第５図は逆止弁の縦断面
図、第６図は従来例の一部切断側面図である。１……気化器本体、２……プライマリスロツト
ルバルブ、３……セカンダリスロツトルバルブ、
４……プライマリスロツトルシヤフト、５……ス
ロツトルレバー、６，９……ツメ、７……レバー
、８……引張りスプリング、１０……セカンダリ
スロツトルシヤフト、１１……リンク、１２……
ダイヤフラム、１２_１……ダイヤフラムケース、
１３……圧縮スプリング、１４……ロツド、１５
……ローラ、１６……負圧取入口、１７……負圧
取出口、１８……プライマリジエツト穴、１９…
…セカンダリジエツト穴、２３……連通管、２４
……逆止弁、２５……エレメント、２６……負圧
取入口、２７……吸気ダクト負圧取入口、２８…
…導通管、２９……蛇腹ブーツ。 Fig. 1 is an explanatory diagram of the system, Fig. 2 is a partially cut-away side view, Fig. 3 is a partially enlarged vertical sectional view, Fig. 4 is a partially cut-away side view of another embodiment, and Fig. 5 is a reverse view. A vertical cross-sectional view of the stop valve, and FIG. 6 is a partially cutaway side view of a conventional example. 1... Carburetor main body, 2... Primary throttle valve, 3... Secondary throttle valve,
4... Primary throttle shaft, 5... Throttle lever, 6, 9... Pawl, 7... Lever, 8... Tension spring, 10... Secondary throttle shaft, 11... Link, 12...
Diaphragm, 12 ₁ ...Diaphragm case,
13... Compression spring, 14... Rod, 15
...Roller, 16...Negative pressure intake, 17...Negative pressure outlet, 18...Primary jet hole, 19...
...Secondary jet hole, 23...Communication pipe, 24
...Check valve, 25...Element, 26...Negative pressure intake port, 27...Intake duct negative pressure intake port, 28...
... Conduit pipe, 29... Bellows boots.

Claims

[Claims for Utility Model Registration] 1. A primary throttle valve 2 and a secondary throttle valve 3 are provided in the carburetor body 1, and a lever 7 provided on the primary throttle valve 2 is connected to the secondary throttle valve 3 via a link 11. a diaphragm case 12 with a diaphragm 12 connected to the link 11 via a rod 14;
In _the carburetor, the diaphragm case 12 is provided with a negative pressure intake port 27 attached to _the intake duct 20 upstream of the throttle valves 2 and 3. ₁₂ A valve device for a carburetor, characterized in that the diaphragm 12 is communicated with the diaphragm 12 through a communication pipe 28 to close the intake path so that the diaphragm 12 does not act under negative pressure even if negative pressure is generated in the downstream region of the intake path. 2. The valve device according to claim ₁ , wherein the diaphragm case 121 is provided with a bellows boot 29 that encloses the rod 14 connected to the diaphragm 12. 3. Utility model registration claim 1, in which the diaphragm case 12 ₁ is provided with a check valve 24 that is connected to the diaphragm case chamber.
The valve device according to item 1 or 2.