
基本信息:
- 专利标题: PIEZOELECTRIC VALVE
- 专利标题(中):压电阀
- 申请号:EP98959183.9 申请日:1998-12-11
- 公开(公告)号:EP0961062B1 公开(公告)日:2010-11-03
- 发明人: MIYAZOE, Shinji SMC Kabushiki Kaisha , ISHIKAWA, Makoto SMC Kabushiki Kaisha
- 申请人: SMC Kabushiki Kaisha
- 申请人地址: 16-4, Shimbashi 1-chome Minato-ku, Tokyo 105-8659 JP
- 专利权人: SMC Kabushiki Kaisha
- 当前专利权人: SMC Kabushiki Kaisha
- 当前专利权人地址: 16-4, Shimbashi 1-chome Minato-ku, Tokyo 105-8659 JP
- 代理机构: KEIL & SCHAAFHAUSEN Patentanwälte
- 优先权: JP34334697 19971212; JP989798 19980121
- 国际公布: WO1999031420 19990624
- 主分类号: F16K31/02
- IPC分类号: F16K31/02 ; F16K31/00
摘要:
A piezoelectric valve having a diaphragm (38) which is kept in contact with a valve seat (52) when a drive signal is not applied to a piezoelectric element (42) to separate diaphragm chambers (24a and 24b) from a passage (54), wherein, even if the pressure of fluid introduced into the diaphragm chambers (24a and 24b) is varied, the diaphragm (38) is firmly supported against the valve seat (52) without causing any deformation, and the passage (54) is closed securely by a cover, whereby eliminating the possibility of fluid leakage. On the other hand, the diaphragm (38) is bent when the drive signal is applied to the piezoelectric element (42) to allow communication of the diaphragm chambers (24a and 24b) with the passage (54) and guide fluid to the passage (54). If the piezoelectric element (42) is forced to bent excessively, it will be kept in contact with a cushion member (56) so as to prevent the piezoelectric element (42) from being deformed excessively, whereby eliminating the possibility of damage to the piezoelectric element (42).
摘要(中):
一种压电阀,其具有当驱动信号未施加到压电元件(42)以将隔膜室(24a和24b)与通道(54)分开时与阀座(52)保持接触的隔膜(38) 其特征在于,即使导入隔膜室(24a,24b)的流体的压力发生变化,隔膜(38)也不会产生变形而牢固地支承在阀座(52)上,通路(54)关闭 可靠地通过盖子,从而消除流体泄漏的可能性。 另一方面,当驱动信号施加到压电元件(42)以使隔膜室(24a和24b)与通道(54)连通并将流体引导到通道(54)时,隔膜(38) 54)。 如果压电元件(42)被迫过度弯曲,则其将与缓冲部件(56)保持接触,从而防止压电元件(42)过度变形,从而消除了压电元件 元素(42)。
公开/授权文献:
- EP0961062A1 PIEZOELECTRIC VALVE 公开/授权日:1999-12-01
IPC结构图谱:
F | 机械工程;照明;加热;武器;爆破 |
--F16 | 工程元件或部件;为产生和保持机器或设备的有效运行的一般措施;一般绝热 |
----F16K | 阀;龙头;旋塞;致动浮子;通风或充气装置 |
------F16K31/00 | 操作装置;释放装置 |
--------F16K31/02 | .电力的;磁力的 |