Patent 7341320 was granted and assigned to Hitachi (Japanese train) on March, 2008 by the United States Patent and Trademark Office.
An electromagnetically actuated valve including a housing having a fluid path and a valve retaining bore located in course of the fluid path, a tubular valve casing mounted to the valve retaining bore, a valve body electromagnetically operative to axially move within the tubular valve casing and allow and prevent a flow of fluid passing through the fluid path of the housing, and a filter disposed at an axial end of the tubular valve casing. The filter includes a fluid passage communicated with the fluid path of the housing.