JPS6238465U

JPS6238465U -

Info

Publication number: JPS6238465U
Application number: JP12947285U
Authority: JP
Priority date: 1985-08-27
Filing date: 1985-08-27
Publication date: 1987-03-07

Description

[Brief explanation of the drawing]

第１図はこの考案の空気脈動補正装置付き気化
器の構成を説明する略断面図、第２図はベンチユ
リ負圧と吸入空気量とについて全開時と部分負荷
時の関係を示す線図で、第３図はエンジンの一酸
化炭素濃度ＣＯ（％）とエンジン回転数とについ
て、従来の補正しない場合とこの考案の装置によ
る補正の効果との関係を示す線図である。図面における主な参照数字は次の通りである。
１０……気化器、１２……ベンチユリ部、１４…
…絞り弁、１６……燃料タンク、１８……燃料ポ
ンプ、２２……燃料調整器、２４……燃料調整器
の第一の区室、２６……第一のダイアフラム、２
８……第二の区室、３０……第二のダイアフラム
、３２……第三の区室、３６……ベンチユリ負圧
導管、３８……デユーテイ・ソレノイド弁装置、
４４……コンピユータ・コントロール・ユニツト
、４６……燃料導管、４８……燃料微粉化ノズル
、５８……燃料リターン通路。 Fig. 1 is a schematic cross-sectional view illustrating the configuration of the carburetor with an air pulsation correction device of this invention, and Fig. 2 is a diagram showing the relationship between the vent lily negative pressure and the intake air amount at full open and partial load. FIG. 3 is a diagram showing the relationship between the engine carbon monoxide concentration CO (%) and the engine speed when no correction is made in the conventional case and the effect of correction by the device of this invention. The main reference numbers in the drawings are as follows.
10... vaporizer, 12... bench lily part, 14...
... Throttle valve, 16... Fuel tank, 18... Fuel pump, 22... Fuel regulator, 24... First compartment of fuel regulator, 26... First diaphragm, 2
8... Second compartment, 30... Second diaphragm, 32... Third compartment, 36... Bench lily negative pressure conduit, 38... Duty solenoid valve device,
44... Computer control unit, 46... Fuel conduit, 48... Fuel atomization nozzle, 58... Fuel return passage.

Claims

[Claims for Utility Model Registration] A carburetor comprising a bench lily portion through which intake air is passed to the engine and a throttle valve provided downstream of the vent lily portion, and a fuel regulator, the fuel regulator comprising: divided into first, second and third compartments by a first diaphragm with a small pressure receiving area and a second diaphragm with a large pressure receiving area; and a first diaphragm formed by the first diaphragm. The compartment and the liquid fuel tank are connected to each other by a conduit having a fuel pump, and the first compartment is further connected to a fuel atomization nozzle provided on the downstream side adjacent to the bench lily part. a valve connected to the fuel tank by a fuel return passage and operated by the first and second diaphragms at an opening of the fuel return passage in the first compartment; A bench lily negative pressure conduit opening to the bench lily portion is connected to a second compartment formed by the first and second diaphragms, and a third compartment is separated from the second compartment by the second diaphragm. an intake negative pressure conduit opening upstream from the bench lily portion of the carburetor is connected to the compartment; and a duty solenoid valve device for leaking the bench lily negative pressure to the vent lily negative pressure conduit; 1. A carburetor with an air pulsation correction device, comprising: said duty solenoid valve device being operated by a control output signal of a computer control unit which uses engine rotational speed and suction pressure as input signals.