JPH0332126U

JPH0332126U -

Info

Publication number: JPH0332126U
Application number: JP9210189U
Authority: JP
Priority date: 1989-08-04
Filing date: 1989-08-04
Publication date: 1991-03-28

Description

[Brief explanation of drawings]

第１図は本考案の一実施例におけるＶ型６気筒
エンジンの吸気装置の概略平面図、第２図は同要
部正面図、第３図は吸気マニホールドの正面図、
第４図は第１図の−線に沿う吸気マニホール
ドの断面図、第５図は吸気マニホールドの要部断
面平面図、第６図は第４図の−線に沿う要部
断面図、第７図はセカンダリバルブおよび連通開
閉弁の運転状態に対する開閉作動例をトルクカー
ブと共に示す特性図である。Ｅ…エンジン、１…エンジン本体、３ａ，３ｂ
…シリンダヘツド、４…吸気装置、５…吸気マニ
ホールド、５ａ…マニホールド本体部、６…スロ
ツトルボデイ、９ａ，９ｂ…独立吸気通路、９ａ
′，９ｂ′，９ｂ″…突出部、１０ａ，１０ｂ…
側方連通部、１１，１２…集合吸気通路、１３，
１４…低速用吸気通路。 FIG. 1 is a schematic plan view of an intake system for a V-type 6-cylinder engine according to an embodiment of the present invention, FIG. 2 is a front view of the same essential parts, and FIG. 3 is a front view of the intake manifold.
4 is a sectional view of the intake manifold along the - line in FIG. 1, FIG. 5 is a sectional plan view of the main part of the intake manifold, FIG. The figure is a characteristic diagram showing an example of the opening/closing operation of the secondary valve and the communication opening/closing valve with respect to the operating state, together with a torque curve. E...Engine, 1...Engine body, 3a, 3b
...Cylinder head, 4...Intake device, 5...Intake manifold, 5a...Manifold main body, 6...Throttle body, 9a, 9b...Independent intake passage, 9a
', 9b', 9b''...protrusion, 10a, 10b...
Side communication portion, 11, 12...collective intake passage, 13,
14...Low speed intake passage.

Claims

[Scope of utility model registration request]

A plurality of independent intake passages are opened in a line in a collective intake passage interposed in the middle of the intake passage, the independent intake passages are made to protrude into the inside of the surge tank, and adjacent portions of the protruding portions in the row direction are opened. An engine intake device characterized by having a cutout to form a side communication section.