公开(公告)号：US06601822B2

公开(公告)日：2003-08-05

申请号：US09799625

申请日：2001-03-07

申请人： Seiji Tachibana ,  Hiroyuki Nakane ,  Mitsuhiro Watanabe ,  Naoya Suda ,  Yoshitaka Kamiya

发明人： Seiji Tachibana ,  Hiroyuki Nakane ,  Mitsuhiro Watanabe ,  Naoya Suda ,  Yoshitaka Kamiya

IPC分类号： F16K3102

CPC分类号： F16K31/0613 ,  Y10T137/8671

摘要： In a magnetic driving device, a fixed core has a housing portion, in which a plunger is housed to reciprocatingly move, and an attracting portion toward which the plunger is attracted upon energizing a coil. The housing portion is provided with a ring portion, which is formed by machining an outer circumference wall thereof and whose thickness is thinner than that of a part of the housing portion adjacent to the ring portion to an extent that mechanical strength of the housing portion is not damaged. The ring portion is provided with a plurality of through-holes penetrating radially the wall thereof. A magnetic flux area of the ring portion is limited due to the thin wall and the through-holes so that magnetic resistance is enlarged.

摘要翻译： 在磁驱动装置中，固定铁芯具有容纳部件，柱塞被容纳在其中以往复运动;壳体部分，以及在向线圈通电时吸引柱塞的吸引部分。 壳体部设置有环状部，该环部通过机械加工其外周壁而形成，并且其厚度比与环部相邻的壳体部的一部分的厚度比壳体部的机械强度为 没有损坏 环部设有多个径向贯通其壁的贯通孔。 由于薄壁和通孔使得环部的磁通面积受到限制，从而磁阻增大。