JPH0368548U

JPH0368548U -

Info

Publication number: JPH0368548U
Application number: JP12979689U
Authority: JP
Priority date: 1989-11-07
Filing date: 1989-11-07
Publication date: 1991-07-05

Description

[Brief explanation of drawings]

第１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……始動装置本体、２……始動弁案内筒、２
Ａ……底部、２Ｂ……内壁、３……始動空気通路
、４……始動混合気通路、５……始動燃料通路、
６……始動弁体、６Ａ……係止段部、６Ｂ……ニ
ードル弁収納孔、６Ｃ……第１ニードル弁挿入孔
、７……閉塞弁部、７Ａ……第２ニードル弁挿入
孔、８……ニードル弁、１０……閉塞部材。 FIG. 1 is a longitudinal cross-sectional view showing an embodiment of a starting device for a carburetor according to the present invention. 1...Starting device body, 2...Starting valve guide cylinder, 2
A...bottom, 2B...inner wall, 3...starting air passage, 4...starting mixture passage, 5...starting fuel passage,
6... Starting valve body, 6A... Locking step portion, 6B... Needle valve storage hole, 6C... First needle valve insertion hole, 7... Closure valve part, 7A... Second needle valve insertion hole, 8... Needle valve, 10... Closing member.

Claims

[Scope of claim for utility model registration]
A starting device main body 1 in which a cylindrical starting valve guide tube 2 having a diameter A is bored; a starting fuel passage 5 that opens at the bottom 2A of the starting valve guide tube 2 and is supplied with pressurized fuel; A starting air passage 3 that opens in the inner wall 2B of the valve guide cylinder 2 and is connected to the atmosphere, and an inner wall 2 of the starting valve guide cylinder 2.
A starting mixture passage 4 which opens to B and is connected to the intake path of the carburetor or an intake pipe connecting the carburetor and the engine; a starting fuel passage 5 which is movably disposed within the starting valve guide cylinder 2; Air passage 3, starting mixture passage 4
, a closing valve part 7 that controls opening and closing and elastically presses and closes the starting fuel passage 5 that opens to the bottom 2A of the starting valve guide cylinder 2; In a starting device for a carburetor comprising a starting valve body 6 having a needle valve 8 for controlling an effective area;
A needle valve storage hole 6B having a diameter D ₁ larger than the outer diameter d ₁ of the needle valve 8 is formed from the locking step 6A of the needle valve storage hole 6B, and the other end of the starting valve body 6 is A first needle valve insertion hole 6C penetrating through the starting valve body 6 is formed at the other end of the starting valve body 6 facing the bottom 2A of the starting valve guide cylinder 2. Starting fuel passage 5
A blocking valve part 7 made of an elastic material is disposed, which opens and closes, and has a second needle valve insertion hole 7A having _a diameter _D2 larger than the needle valve 8NC diameter d2. A locking flange portion 9 provided in the first needle valve insertion hole 6C and having a diameter K larger than the diameter _D1 of the first needle valve insertion hole 6C is disposed on the locking step portion 6A where the first needle valve insertion hole 4 opens. Therefore, the needle valve 8 is disposed so as to pass through the first needle valve insertion hole 6C of the starter valve body 6 and the second needle valve insertion hole 7A of the blocking valve part 7, and protrude from the other end of the starter valve body 6. A carburetor starting device in which an opening toward one end of a valve storage hole 6B is closed with a closing member 10.