JPS6379460U

JPS6379460U -

Info

Publication number: JPS6379460U
Application number: JP17498486U
Authority: JP
Priority date: 1986-11-14
Filing date: 1986-11-14
Publication date: 1988-05-25

Description

[Brief explanation of drawings]

第１図は本考案の一実施例を示す断面図、第２
図は同上の作用図、第３図は本考案を適用する機
械式過給機を備えたエンジンの一例を示す概略構
成図である。１……エンジン、２……給気通路、６……スロ
ツトルバルブ、２３……可変ベンチユリ式気化器
、２９……ベンチユリ部、３０……ピストンバル
ブ、３２……負圧室、３３……リターンスプリン
グ、３４……サクシヨンポート、３７……電磁弁
、４０……車速センサ。 Fig. 1 is a sectional view showing one embodiment of the present invention;
The figure is an operational view similar to the above, and FIG. 3 is a schematic configuration diagram showing an example of an engine equipped with a mechanical supercharger to which the present invention is applied. DESCRIPTION OF SYMBOLS 1... Engine, 2... Air supply passage, 6... Throttle valve, 23... Variable bench lily type carburetor, 29... Bench lily part, 30... Piston valve, 32... Negative pressure chamber, 33... Return spring, 34... Suction port, 37... Solenoid valve, 40... Vehicle speed sensor.

Claims

[Scope of Claim for Utility Model Registration] A piston valve, a part of which is provided in the bench lily so as to be able to move in and out, a return spring that urges the valve in a direction to project the piston valve into the bench lily, and a piston valve. It has a suction port that communicates the negative pressure chamber formed at the rear of the piston valve with the bench lily, and controls the static pressure in the bench lily that changes according to the opening degree of the throttle valve. In a vehicle equipped with a variable bench lily type carburetor configured to change the negative pressure in the negative pressure chamber in response to fluctuations and move the piston valve into and out of the bench lily portion, the variable vent lily carburetor is connected to the negative pressure chamber, Based on a solenoid valve that selectively releases the negative pressure chamber to the atmosphere, a vehicle speed sensor that detects a predetermined maximum speed of the vehicle, and a vehicle speed signal when the vehicle speed sensor detects the predetermined maximum speed,
and a control means for outputting a control signal for activating the solenoid valve to open the negative pressure chamber to the atmosphere, and when a predetermined maximum speed is detected, the negative pressure chamber is opened to the atmosphere. A vehicle speed limiting device characterized by a piston valve protruding into a bench lily portion.