ENGINE MANIFOLD VIBRATION REDUCTION DEVICE AND METHOD AND ENGINE

WIPO Patent Application WO/2023/173957

A1

Disclosed are an engine manifold vibration reduction device and method and an engine. During a working process of an engine, excitation coils (22) are electrified so that electromagnetic fields are formed in magnetic induction channels (11). During a radial vibration process of an engine manifold (100), stators (1) cut magnetic induction lines to form a back electromotive force when mover mass blocks (2) drive the excitation coils to reciprocate in the magnetic induction channels, so that an eddy current effect is generated to produce damping, achieving an effect of reducing the radial vibration of the engine manifold. During the working process of the engine, a vibration detection unit measures an excitation frequency of the engine and/or response frequencies of the engine manifolds, and current adjustment units adjust current sizes of the excitation coils according to a detection result of the vibration detection unit. Thus, the engine manifolds obtain rigidities matching the detection result of the vibration detection unit, so that the vibration of the engine manifolds is reduced and the reliability of the engine manifolds is improved. Vibration reduction requirements of the engine manifolds in different engine working conditions can be met, and the service lives of the engine manifolds are prolonged.

WANG MINGYANG (CN)
HU LIANG (CN)
WANG XIN (CN)

PCT/CN2023/074715

September 21, 2023

February 07, 2023

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WEICHAI POWER CO LTD (CN)

F16F15/03

CN217108009U	2022-08-02
CN114110290A	2022-03-01
CN101324257A	2008-12-17
CN107044506A	2017-08-15
CN106257123A	2016-12-28
US20180128342A1	2018-05-10

BEYOND ATTORNEYS AT LAW et al. (CN)

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