JPH0465929U

JPH0465929U -

Info

Publication number: JPH0465929U
Application number: JP10709590U
Authority: JP
Priority date: 1990-10-12
Filing date: 1990-10-12
Publication date: 1992-06-09

Description

[Brief explanation of the drawing]

第１図は本考案の一実施例を示す概略平面図、
第２図は第１図の−線に沿う概略断面図、第
３図は第１図の−線に沿う断面図、第４図は
一実施例が適用されたエンジンのトルク特性を示
す線図である。１……エンジン、２……エアダクト、３……ス
ロツトルボデイ、４……コレクトチヤンバ、５…
…吸入管、５ａ……一方の通路、６……シリンダ
ヘツド、７……切換バルブ、８……負圧アクチユ
エータ、９……リンク機構、１０……スロツトル
バルブ、１１……分岐通路、１２……バルブボデ
イ、１２ａ……通路、１３……レゾネータチヤン
バ、１４……開閉バルブ、１５……負圧アクチユ
エータ、１６……リンク機構。 FIG. 1 is a schematic plan view showing an embodiment of the present invention;
FIG. 2 is a schematic sectional view taken along the - line in FIG. 1, FIG. 3 is a sectional view taken along the - line in FIG. 1, and FIG. 4 is a diagram showing the torque characteristics of an engine to which one embodiment is applied. It is. 1...Engine, 2...Air duct, 3...Throttle body, 4...Collection chamber, 5...
... Suction pipe, 5a ... One passage, 6 ... Cylinder head, 7 ... Switching valve, 8 ... Negative pressure actuator, 9 ... Link mechanism, 10 ... Throttle valve, 11 ... Branch passage, 12 ... Valve body, 12a ... Passage, 13 ... Resonator chamber, 14 ... Opening/closing valve, 15 ... Negative pressure actuator, 16 ... Link mechanism.

Claims

[Claims for Utility Model Registration] The engine is equipped with a collector chamber that is arranged above the engine body and communicates with the downstream side of the throttle valve, and which branches left and right, and has a passage divided into two parts inside. Equipped with an intake pipe that communicates with each cylinder, opening and closing of one of the divided passages of each intake pipe is controlled by a switching valve, which reduces the cross-sectional area of the intake passage in the low speed range of the engine and increases intake air filling efficiency. , in a horizontally opposed engine intake pipe device configured to increase the cross-sectional area of the intake passage in the engine's high-speed rotation range to increase intake air filling efficiency, a resonator chain that increases the intake air filling efficiency in the engine's medium-speed rotation range The resonator chamber is located directly upstream of the throttle valve via an on-off valve that opens only in the medium speed range of the engine. An intake pipe device for a horizontally opposed engine that communicates with the intake system.