JPH0317253U

JPH0317253U -

Info

Publication number: JPH0317253U
Application number: JP7708089U
Authority: JP
Priority date: 1989-06-30
Filing date: 1989-06-30
Publication date: 1991-02-20

Description

[Brief explanation of the drawing]

第１図は従来の気化器の始動装置を示す縦断面
図、第２図は第１図の−線での縦断面図、第
３図は本考案になる気化器の始動装置の一実施例
を示す縦断面図である。１……気化器本体、４……浮子室、７……大気
室、１２……制御筒、１２Ａ……底部、１３……
始動空気通路、１４……始動混合気通路、１５…
…始動燃料通路、３０……始動燃料ポンプ、４０
……リターン通路、５０……チエツク弁。 Fig. 1 is a longitudinal sectional view showing a conventional carburetor starting device, Fig. 2 is a longitudinal sectional view taken along the - line in Fig. 1, and Fig. 3 is an embodiment of the carburetor starting device according to the present invention. FIG. 1... Carburetor body, 4... Float chamber, 7... Atmospheric chamber, 12... Control tube, 12A... Bottom, 13...
Starting air passage, 14... Starting air mixture passage, 15...
...Starting fuel passage, 30...Starting fuel pump, 40
...Return passage, 50...Check valve.

Claims

[Scope of Claim for Utility Model Registration] A carburetor body with an intake passage passing through the interior in a horizontal direction, and the intake passage having a throttle valve for controlling the effective opening area of the intake passage; By the float chamber main body and the lower recessed part of the carburetor main body, which are arranged to face each other,
A float chamber in which a constant liquid level is formed; The upper part of the constant liquid level of the float chamber is communicated with the atmosphere by a cover disposed opposite to the upper recess of the vaporizer main body and the upper recess of the vaporizer main body. a starting fuel control passage in a control cylinder bored inside; a starting air passage connected to the atmospheric chamber; and a starting mixer passage connected to the intake passage from the intake passage of the carburetor body to the engine. a starter main body having an open opening; an opening/closing valve body that controls opening and closing of the starting fuel control passage, the starting air passage, and the starting mixture passage by a heat-sensitive member that is displaced in response to temperature changes; a starting fuel pump that sucks starting fuel into a pump chamber through a fuel suction passage using pulsating pressure and discharges starting fuel from the pump chamber through a fuel discharge passage; is connected below the constant liquid level in the starting float chamber, the fuel discharge passage is connected to the starting fuel control passage, and the bottom of the control tube of the starter main body is arranged at a position above the constant liquid level formed in the float chamber. A starting device for a carburetor, in which the bottom of a control tube and a float chamber located below the bottom of the control tube are connected by a return passage. 2. A starting device for a carburetor according to claim 1, further comprising a check valve disposed in said return passage to allow flow only from the control tube to the float chamber.