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Piezoelectric pick-up device for internal combustion engine
Piezoelectric pick-up device for internal combustion engine
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机译:内燃机的压电拾波器
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摘要
A piezoelectric pick-up device for an internal combustion engine is disclosed, which comprises a metal case mounted on an internal combustion engine cylinder wall or the like, a mounting metal rod projecting from the inner bottom surface of the metal case into the interior thereof, a piezoelectric element and a weight disposed in the case interior and fitted on the mounting rod, the piezoelectric element being electrically coupled to the metal case, a cap-like cover fittedly covering the weight or the entirety of the piezoelectric element and the weight, and a molding material filling the case interior. The cap-like cover is made of an elastic material or a hard material.
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