| 摘要 |
An electromagnetically driven valve includes a drive valve that has a stem; an upper disk and a lower disk each of which has an arm portion, and each of which extends from a first end that is movably connected to the stem toward a second end that is movably supported by a disk supporting base; and an electromagnet. The electromagnet includes a core that is provided so as to face the arm portion, and a coil that is wound around the core. The electromagnet forms a magnetic circuit that passes through the core and the arm portion when an electric current is applied to the coil. The electromagnetically driven valve further includes a permanent magnet which has a magnetic axis along the magnetic circuit, and which is provided so as to act on a magnetic flux that flows through the magnetic circuit.
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