Electrically operated valve

An electrically operated valve comprising:

• a valve main body with a tubular base body in which a valve chamber is defined in an inner portion and a first opening and a second opening are formed in a side portion and a bottom portion, respectively;
• a valve seat member which has a valve port open to said valve chamber and a valve seat and is provided in said second opening of said valve main body;
• an axially symmetric valve body which is arranged in said valve chamber so as to be movable up and down;
• and
• an elevation drive portion which moves up and down said valve body in relation to said valve seat,
• wherein a porous body is arranged along a portion which is positioned in a side portion of said valve port along an inner wall surface of said valve main body, and
• wherein said porous body is formed into a C-shaped cross section arranged coaxially to the tubular base body of the valve main body and to the valve body, wherein the porous body is cut out in a portion between ends of the C-shaped cross section to form an opening between the ends of the C-shaped cross section in a way such that a fluid is able to pass through the opening so as to not inhibit flow of the fluid between said side portion and the valve port, and
• wherein the opening of the porous body faces said first opening over a whole in an elevating direction of said valve body to provide said C-shaped cross section defined by a section plane orthogonal to the elevating direction of the valve body.