发明名称 |
Apparatus for driving piezoelectric element for closing and opening valve member |
摘要 |
In an apparatus for driving a piezoelectric element used for closing and opening a valve member, a first-step voltage is applied to the piezoelectric element to move the valve element near to a valve seat, and thereafter, a second-step voltage higher than the first-step voltage is applied to the piezoelectric element to seat the valve element securely on the valve seat.
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申请公布号 |
US5057734(A) |
申请公布日期 |
1991.10.15 |
申请号 |
US19890443220 |
申请日期 |
1989.11.29 |
申请人 |
TOYOTA JIDOSHA KABUSHIKI KAISHA |
发明人 |
TSUZUKI, NAOYUKI;MITSUYASU, MASAKI;TAKAHASHI, TAKESHI |
分类号 |
F02B1/04;F02B3/06;F02D41/20;F02D41/40;F02M57/02;F02M59/36;F02M59/46;F02M63/00;H01L41/04 |
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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