发明名称 |
SHUTOFF VALVE DEVICE |
摘要 |
A shutoff valve (30) according to the present invention includes: a motor (31) configured to cause a rotating shaft (45) to rotate; a lead screw (46) formed on the rotating shaft (45); a lead nut (49) into which the lead screw (46) is screwed; and a valve element (32) configured to block a passage, the valve element (32) being configured to move in an axial direction in accordance with rotation of the rotating shaft (45). A dry lubricating coating is formed on a contact surface where the lead screw (46) and the lead nut (49) come into contact with each other. A thread pitch of the lead screw (46) is set such that a current applied to the motor (31), the current being in relation to an inductance of the motor, is in a range that does not cause explosion of the fuel gas and that allows thrust force necessary for moving the valve element (32) to be obtained. |
申请公布号 |
EP2674653(A4) |
申请公布日期 |
2016.11.30 |
申请号 |
EP20120744660 |
申请日期 |
2012.01.19 |
申请人 |
PANASONIC CORPORATION |
发明人 |
NAGANUMA, NAOTO;KABAYASHI, YUJI;MORIHANA, HIDEAKI;SUGIYAMA, MASAKI;NAKAI, HIROSHI;ADACHI, AKIHISA |
分类号 |
G01F15/00;F02M21/02;F16H25/24;F16K31/04 |
主分类号 |
G01F15/00 |
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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