发明名称 |
Piezoelectric engine-knock sensor |
摘要 |
A metallic reed clamped against a piezoelectric element, and free to oscillate at its other end, generates electrical signals in a piezoelectric element which is held between clamp surfaces in fixed relation to an engine part which transmits engine knock vibrations to the sensor assembly. The reed is oriented perpendicular to the vibratory motions of the engine part on which it is mounted, so that vibrations of the reed will be excited thereby, and these will deform the piezoelectric element to generate signals. The entire assembly can be enclosed in a transverse bore in the head of a cylinder head screw.
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申请公布号 |
US4379404(A) |
申请公布日期 |
1983.04.12 |
申请号 |
US19810236907 |
申请日期 |
1981.02.23 |
申请人 |
ROBERT BOSCH GMBH |
发明人 |
HAMISCH, HANS J.;BORUSCHWEITZ, MANFRED;GAST, THEODOR |
分类号 |
F02B1/04;G01H11/08;G01L23/22;(IPC1-7):G01L23/22 |
主分类号 |
F02B1/04 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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