Mitsubishi Denki Kabushiki Kaisha

Yuji Bando

Kenji Nakao

Kouichi Ojima

Hidehiro Soga

An electromagnetic valve of a reduced size capable of suppressing temperature rise of a coil regardless of continuous electrical energization over an extended time while preventing attracting force from lowering includes a coil cooling fluid passage () for communicating a coil cooling fluid sump space () with a controlled pressure region for allowing a fluid to flow into the coil cooling fluid sump space () from the controlled pressure region. The coil cooling fluid passage includes a small-diameter communicating passage portion () provided so as not to exert influence to a hydraulic pressure prevailing in the controlled pressure region.

Growing community of inventors

Tokyo, Japan

Yuji Bando