JPS60183272U

JPS60183272U - Internal combustion engine fuel supply system

Info

Publication number: JPS60183272U
Application number: JP7234184U
Authority: JP
Inventors: 博通三輪; 斉藤　正昭
Original assignee: 日産自動車株式会社
Priority date: 1984-05-16
Filing date: 1984-05-16
Publication date: 1985-12-05

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 the drawing]

第１図は従来の燃料供給装置を示す縦断面図、第２図〜
第８図はこの考案に係る燃料供給装置の一実施例を示す
図であり、第２図はその全体構成図、第３図はその要部
拡大部、第４図は第２図の燃料噴射ノズルの縦断面図、
第５図はカム機構の概略構成図、第６図は主絞り弁の開
度と副絞り弁の開度との関係を示すグラフ、第７図は副
絞り弁の開度とその圧力差との関係を示すグラフ、第８
′図は副絞り弁の圧力差と燃料の平均粒径との関係を示
すグラフである。 −２２・・・・・・内燃機関、２６・・・・・・分岐マ
ニホルド、２７・・・・・・集合管、２８・・・・・・
主絞り弁、２９・・・・・・副絞り弁、３０・・・・・
・燃料噴射ノズル、３７・・・・・・噴孔、３８・・・
・・・末広ノズル、４３・・・・・・空気導入路。ｉ（１，第７図 θ −第３図０８ｈ　′　　　　　　　　」 −６１−Ｓ・　゛　　　　　　　　、ゲ第２図口、− ト−］ｉ−“７１１＼　　　　　　　　　　　「＝ｌ′ ■　□ ２９１由　　療Fig. 1 is a longitudinal sectional view showing a conventional fuel supply device, Fig. 2~
FIG. 8 is a diagram showing an embodiment of the fuel supply device according to this invention, FIG. 2 is a diagram of its overall configuration, FIG. 3 is an enlarged view of its main parts, and FIG. 4 is a diagram showing the fuel injection system shown in FIG. 2. Longitudinal cross-sectional view of the nozzle,
Figure 5 is a schematic configuration diagram of the cam mechanism, Figure 6 is a graph showing the relationship between the opening of the main throttle valve and the opening of the auxiliary throttle valve, and Figure 7 is the relationship between the opening of the auxiliary throttle valve and the pressure difference. Graph showing the relationship between
Figure ' is a graph showing the relationship between the pressure difference of the sub-throttle valve and the average particle size of fuel. -22...Internal combustion engine, 26...Branch manifold, 27...Collecting pipe, 28...
Main throttle valve, 29...Sub-throttle valve, 30...
・Fuel injection nozzle, 37... Nozzle hole, 38...
... Wide end nozzle, 43 ... Air introduction path. i (1, Fig. 7 θ - Fig. 3 08 h ′ ” -61-S ・゛ , ge Fig. 2 mouth, - t -]i-"711 \ "=l' ■ □ 291 Yu therapy

Claims

[Scope of utility model registration request]

A plurality of fuel injection nozzles are each attached to a branch manifold and inject fuel at a predetermined pressure when energized, and a plurality of diverging nozzles are arranged in front of the nozzle of each fuel injection nozzle and have a cross-sectional area that decreases and then increases in the fuel injection direction. , an air introduction path for introducing air between each diverging nozzle and the nozzle, a main throttle valve disposed in a collecting pipe that collects the branch manifold to control the intake air amount, and interlocked with the main throttle valve. a plurality of sub-throttle valves arranged in a branch manifold upstream of the fuel injection nozzle and controlled to open and close; 1. A fuel supply device for an internal combustion engine, characterized in that the fuel is supplied to a road.