| 摘要 |
PROBLEM TO BE SOLVED: To miniaturize an electromagnetic drive valve by detecting the positions of a drive valve and at least one of first and second rocking members. SOLUTION: This electromagnetic drive valve 10 includes: a drive valve 14 having a stem 12 as a valve shaft and reciprocating in the extending direction of the stem 12; a lower disk 21 and an upper disk 31 provided at a space from each other as first and second rocking members, the respective one ends 22, 32 of which are rockably connected to the stem 12, the other ends 23, 33 being rockably supported on a disk base 51; and a combination opening and closing coil 62. The valve further includes: an electromagnet 60 disposed between the lower disk 21 and the upper disk 31; a drive valve 14; and a detection coil 501 as a detecting part for detecting at least one of the lower disk 21 and the upper disk 31. When an electric current flows through the combination opening and closing coil 62, electromagnetic force is applied to the lower disk 21 and the upper disk 31. According to the position of the drive valve 14 detected by the detection coil 501, the amount of current flowing through the combination opening and closing coil 62 is determined. COPYRIGHT: (C)2006,JPO&NCIPI
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