JPH0349355U

JPH0349355U -

Info

Publication number: JPH0349355U
Application number: JP10922189U
Authority: JP
Priority date: 1989-09-19
Filing date: 1989-09-19
Publication date: 1991-05-14

Description

[Brief explanation of drawings]

第１図ａはバイパス通路の構成を示し、第２図
のＡ−Ａ線に沿う断面図、第１図ｂは本考案
の一実施例における制御通路の構成を示し、第２
図のＢ−Ｂ線に沿う断面図、第２図は本考案
の一実施例を適用したスタータ付気化器を、要部
を破断して示す側面図、第３図はピストンバルブ
の構成を示す断面図、第４図ａはスロツトル弁が
閉塞した状態における制御通路の位置関係を示す
側面図、第４図ｂはスロツトル弁が開放した状態
における制御通路の位置関係を示す側面図、第５
図は制御通路の他の例を示す断面図である。１２……スロツトル弁、２１……バイパス通路
、２４……プランジヤ、３１……制御通路、３５
……ノズル。 FIG. 1a shows the configuration of the bypass passage, a sectional view taken along line A-A in FIG. 2, FIG. 1b shows the configuration of the control passage in an embodiment of the present invention, and
A sectional view taken along the line B-B in the figure, FIG. 2 is a side view showing a starter-equipped carburetor to which an embodiment of the present invention is applied, with main parts cut away, and FIG. 3 shows the configuration of the piston valve. 4a is a side view showing the positional relationship of the control passages when the throttle valve is closed; FIG. 4b is a side view showing the positional relationship of the control passages when the throttle valve is open;
The figure is a sectional view showing another example of the control passage. 12...Throttle valve, 21...Bypass passage, 24...Plunger, 31...Control passage, 35
……nozzle.

Claims

[Claims for Utility Model Registration] (1) A starting fuel supply mechanism is provided in which a bypass passage communicating between the upstream side and the downstream side of the throttle valve is connected to a fuel storage chamber by a fuel passage; In a carburetor with a starter in which the amount of starting fuel supplied to the intake passage is controlled by changing the flow path state of the mechanism, the control passage is connected to the fuel storage chamber side of the fuel passage rather than the bypass passage, and this A control passage is opened near the throttle valve of the intake passage,
The control passage guides air from the intake passage to the bypass passage when the opening degree of the throttle valve is below a predetermined value when the starting fuel supply mechanism is activated;
A carburetor with a starter, characterized in that when the opening degree of the throttle valve is greater than or equal to a predetermined value, the air-fuel mixture is guided to the intake passage. (2) Utility model registration claim 1, characterized in that the control passage opens into the intake passage in the downstream direction of the flow of fluid in the intake passage.
A carburetor with a starter as described in section. (3) The starter according to claim 1, wherein the control passage has a nozzle that protrudes into the intake passage in a downstream direction of the flow of fluid in the intake passage. vaporizer. (4) The opening position of the control passage with respect to the intake passage is located on the upstream side when the throttle valve is closed;
A carburetor with a starter according to claim 1, wherein the starter is located downstream when the throttle valve is opened.