Abstract: An electrically operated valve is provided with a valve main 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, a valve seat member which has an valve port open to the valve chamber and a valve seat and is provided in the second opening of the valve main body, a valve body which is arranged in the valve chamber so as to be movable up and down, and an elevation drive portion which moves up and down the valve body in relation to the valve seat, and a porous body constructed by a foam metal is arranged along a portion which is positioned in a side portion of the valve port on the inner wall surface of the valve main body. Accordingly, an abnormal noise can be reduced.

Abstract: Provided is a motor-driven valve with a simple configuration that is capable of suppressing flow rate loss of fluid and reducing noise caused by the flow of the fluid in the first flowing direction and the second flowing direction, without greatly changing a conventional motor-driving valve. A porous body is fixed to a valve seat member, the porous body being extended at least to be lateral to a valve port and having a cutout part corresponding to a first opening provided at a lateral part of a valve body.

Abstract: Provided is a motor-driven valve with a simple configuration that is capable of suppressing flow rate loss of fluid and reducing noise caused by the flow of the fluid in the first flowing direction and the second flowing direction, without greatly changing a conventional motor-driving valve. A porous body is fixed to a valve seat member, the porous body being extended at least to be lateral to a valve port and having a cutout part corresponding to a first opening provided at a lateral part of a valve body.

Abstract: An electrically operated valve is provided with a valve main 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, a valve seat member which has an valve port open to the valve chamber and a valve seat and is provided in the second opening of the valve main body, a valve body which is arranged in the valve chamber so as to be movable up and down, and an elevation drive portion which moves up and down the valve body in relation to the valve seat, and a porous body constructed by a foam metal is arranged along a portion which is positioned in a side portion of the valve port on the inner wall surface of the valve main body. Accordingly, an abnormal noise can be reduced.

Abstract: To provide a small motor-operated valve which can control a high flow, there is provided a motor-operated valve of which a body has an orifice, seat and a valve element provided opposite to the seat. The valve element is operated by a driver which is driven to rotate by an output gear to which the rotation of a rotor having been reduced by means of a mechanical paradox planetary gear mechanism is transmitted. To force the valve element in the direction in which the valve is opened, a coil spring is disposed in a bore formed in the upper portion of the body oppositely to a bush.

Abstract: To provide a small motor-operated valve which can control a high flow, there is provided a motor-operated valve of which a body has an orifice, seat and a valve element provided opposite to the seat. The valve element is operated by a driver which is driven to rotate by an output gear to which the rotation of a rotor having been reduced by means of a mechanical paradox planetary gear mechanism is transmitted. To force the valve element in the direction in which the valve is opened, a coil spring is disposed in a bore formed in the upper portion of the body oppositely to a bush.