JPS5873935U

JPS5873935U - Diesel engine intake passage device

Info

Publication number: JPS5873935U
Application number: JP16939181U
Authority: JP
Inventors: 松本　泰郎; 江藤　幸寛; 牛島　優示
Original assignee: 日産自動車株式会社
Priority date: 1981-11-16
Filing date: 1981-11-16
Publication date: 1983-05-19

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図は本考案の第１実施例を示す主絞り全閉時の要部
の構成図、第２図は同上主絞り全開時の要部の構成図、
第３図は本考案の第２実施例を示す主絞り全閉時の全体
構成図、第４図は同じ（主絞り弁全開時の全体構成図、
第５図は本考案の第３実施例を示す主絞り弁全閉時の要
部の断面図、第６図は第５図のＡ矢視図、第７図は同じ
（主絞り弁全閉時の要部の断面図、第８図は第７図のＢ
矢視図、第９図は本考案の第４実施例を示す主絞り弁全
開時の要部の断面図、第１０図は第９図のＣ矢視図、第
１１図は同じく主絞り弁全閉時の要部の断面図、第１２
図は第１１図のＤ矢視図である。１ａ・・・シリンダヘッドのウォータジャケット、４・
・・主通路、５・・・主絞り弁、５ａ・・・弁軸、５ｂ
・・・弁体、６・・・副通路、６ａ・・・分岐部、６ｂ
・・・集合部、７・・・副絞り弁、９ａ・・・シリンダ
ブロックのウォータジャケット。Fig. 1 is a configuration diagram of the main parts when the main diaphragm is fully closed, showing the first embodiment of the present invention, and Fig. 2 is a configuration diagram of the main parts when the main diaphragm is fully open.
Fig. 3 is an overall configuration diagram when the main throttle valve is fully closed, showing the second embodiment of the present invention, and Fig. 4 is the same (overall configuration diagram when the main throttle valve is fully open,
Fig. 5 is a sectional view of the main parts of the third embodiment of the present invention when the main throttle valve is fully closed, Fig. 6 is a view taken in the direction of arrow A in Fig. 5, and Fig. 7 is the same (main throttle valve fully closed). A sectional view of the main part at the time, Figure 8 is B in Figure 7.
9 is a cross-sectional view of the main part of the main throttle valve when it is fully open, showing the fourth embodiment of the present invention. FIG. 10 is a view along arrow C in FIG. 9, and FIG. Cross-sectional view of main parts when fully closed, No. 12
The figure is a view taken along arrow D in FIG. 11. 1a... Cylinder head water jacket, 4.
...Main passage, 5...Main throttle valve, 5a...Valve shaft, 5b
... Valve body, 6... Sub-path, 6a... Branch, 6b
...Gathering part, 7...Sub-throttle valve, 9a...Cylinder block water jacket.

Claims

[Scope of utility model registration request]

The intake passage consists of two passages: a main passage and a sub passage whose cross-sectional area is smaller than the main passage, and a main throttle valve that variably controls the cross-sectional area of the main passage, and a main throttle valve attached to the main throttle valve. An intake passage device for a diesel engine, comprising: a sub-throttle valve that closes the sub-passage or reduces its cross-sectional area when the valve is fully opened; and a heating means provided in the sub-passage.