发明名称 |
PERFECCIONAMIENTO EN EL AISLAMIENTO DE UN APILAMIENTO DE DISCOS PIEZOELECTRICOS. |
摘要 |
1525248 Piezoelectric motor devices PHYSICS INTERNATIONAL CO 2 Oct 1975 [3 Oct 1974] 40433/75 Heading H2A [Also in Division F1] In apparatus wherein a piezoelectric element stack 10-18 is surrounded and contacted by a dielectric medium, and wherein a voltage is applied to the stack to generate a motor force, the dielectric medium is pressurized to ensure that the maximum particle velocity of the dielectric medium is greater than the particle velocity of the piezoelectric material; cavitation between the dielectric and piezoelectric materials is therefore prevented and are-over between the materials consequently avoided. The dielectric may be either in fluid or solid form. In the arrangement shown the stack 10-18 moves a diaphragm 22 to pump fluid from a pipe 33 to a pipe 35.
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申请公布号 |
ES441496(A1) |
申请公布日期 |
1977.08.01 |
申请号 |
ES19960004414 |
申请日期 |
1975.10.03 |
申请人 |
PHYSICS INTERNATIONAL COMPANY |
发明人 |
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分类号 |
B06B1/06;H01L41/053;H01L41/083;H02N2/00;H02N2/04;(IPC1-7):01L/ |
主分类号 |
B06B1/06 |
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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