JPH0411229U

JPH0411229U -

Info

Publication number: JPH0411229U
Application number: JP5260490U
Authority: JP
Priority date: 1990-05-22
Filing date: 1990-05-22
Publication date: 1992-01-30

Description

[Brief explanation of the drawing]

第１図は本考案の振動低減装置を備えたエンジ
ンの全体構造を示す一部断面図、第２図は関連す
る制御システムを示すブロツク図、第３図は本考
案の作用を説明する線図である。１……エンジン本体、２……シリンダブロツク
、３……吸気ポート、４……排気ポート、５……
排気マニホールド、６……クランクシヤフト、７
……吸気マニホールド、９……可撓性の管継手、
９，１０……突起部、１１……棒状のステー、１
２……吸気関係の部品、１３……ピエゾ加振機、
１４，１５……リード線、１６……電子制御装置
（ＣＰＵ）、１７……回転数センサ、１８……ス
ロツトル開度センサ、１９……クランク角センサ
、２０……電源、Ｏ……振動（ローリング）の中
心、Ｐ……交点、Ｆ……加振力（慣性力）、ＭＲ
……ローリングモーメント、ＭＦ……加振モーメ
ント。 Fig. 1 is a partial sectional view showing the overall structure of an engine equipped with the vibration reduction device of the present invention, Fig. 2 is a block diagram showing the related control system, and Fig. 3 is a diagram explaining the operation of the present invention. It is. 1...Engine body, 2...Cylinder block, 3...Intake port, 4...Exhaust port, 5...
Exhaust manifold, 6... Crankshaft, 7
...Intake manifold, 9...Flexible pipe joint,
9, 10... Protrusion, 11... Rod-shaped stay, 1
2...Intake-related parts, 13...Piezo vibrator,
14, 15... Lead wire, 16... Electronic control unit (CPU), 17... Rotation speed sensor, 18... Throttle opening sensor, 19... Crank angle sensor, 20... Power supply, O... Vibration ( center of rolling), P...intersection, F...excitation force (inertia force), MR
...Rolling moment, MF...Excitation moment.

Claims

[Scope of utility model registration request]

An intake manifold is floatingly connected to the intake port of the engine body through a flexible pipe joint, and a piezo vibrator is separately provided to bridge the intake manifold and the engine body. , characterized in that the piezoelectric vibrator is configured to apply a vibration voltage to the piezoelectric vibrator so that the piezoelectric vibrator applies opposite-phase vibration to the intake manifold that cancels vibrations of the engine main body. Vibration reduction device.