JPS601948U

JPS601948U - Rotary throttle valve type carburetor

Info

Publication number: JPS601948U
Application number: JP9326083U
Authority: JP
Inventors: 照彦飛内
Original assignee: 株式会社　ウオルブロ−フア−イ−スト
Priority date: 1983-06-20
Filing date: 1983-06-20
Publication date: 1985-01-09
Also published as: JPS636438Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は本考案に係る気化器の斜視図であり、第２図は
第１図に示した■−■線に沿って得られた断面図であり
、第３図は本考案に係る前記気化器の平面図であり、第
４図は第３図に示したＩＶ−■線に沿って得られた断面
図である。１２．１２ａ：気化器本体、１４：スロットル弁、１６
：空気孔、１８二案内孔、２０：スロットル孔、２４：
ノズルチューブ、２６：燃料噴出孔、２８：ニードル、
３４：リターンスプリング、３６：スロットルレバー、
４０．　４２：カム機構、５２：突起、５４：凹所、５
６：ねじ部材、６２：始動レバー。FIG. 1 is a perspective view of the vaporizer according to the present invention, FIG. 2 is a sectional view taken along the line ■-■ shown in FIG. 1, and FIG. 3 is a perspective view of the vaporizer according to the present invention. 4 is a plan view of the vaporizer, and FIG. 4 is a sectional view taken along the line IV-■ shown in FIG. 3. 12.12a: Carburetor body, 14: Throttle valve, 16
: Air hole, 18 two guide holes, 20: Throttle hole, 24:
Nozzle tube, 26: Fuel injection hole, 28: Needle,
34: Return spring, 36: Throttle lever,
40. 42: cam mechanism, 52: protrusion, 54: recess, 5
6: Screw member, 62: Starting lever.

Claims

[Scope of utility model registration request]

(1) a carburetor body provided with an air hole that communicates with the air supply port of the internal combustion engine and a guide hole that intersects with the air hole; and a carburetor body that is housed in the guide hole so as to be movable in the circumferential direction and the axial direction;
a generally cylindrical rotary throttle valve having one end fixed to a throttle lever disposed outside the carburetor body, the rotary throttle valve having a throttle hole that can be aligned with the air hole; and an axis of the throttle valve. a nozzle tube which is arranged along the carburetor body, has one end fixed to the carburetor body, extends into the throttle hole through the other end of the throttle valve, and is provided with a fuel injection hole that opens into the throttle hole; a needle integrally movably coupled to a throttle valve and extending into the nozzle tube along the axis of the throttle valve; and rotation of the throttle lever to define an idling opening of the throttle valve. a stopper that can come into contact with the throttle lever to restrict the opening of the throttle valve; a return spring that applies a spring force to the throttle valve toward the idling opening degree; a cam mechanism for regulating the helical movement of the throttle valve in order to make the effective diameter of the fuel injection hole variable; a lock provided at a contact portion between the stopper and the throttle lever to hold the throttle valve in its operating position when the throttle valve is non-rotationally operated in a direction away from the nozzle tube; The locking mechanism includes a recess provided in one of the stopper and the throttle lever, and a protrusion that is provided in the other of the stopper and the throttle lever and is engageable with the recess. A rotary throttle valve hole carburetor.

(2) The rotary throttle type carburetor according to claim 1, wherein the protrusion is constituted by a screw member whose tip can be fitted into a recess formed in the throttle lever.

(3) The throttle valve is swingably supported by the carburetor body and is operated to the operating position by operating a starting lever that can be engaged with the throttle lever. The low-pressure throttle type carburetor described in .