Fluid control valve

A fluid control valve, comprising:

• a valve housing provided with an inlet port and an outlet port;
• a valve body configured to be driven by a drive source;
• a spring configured to urge the valve body in a direction opposite a direction of driving by the drive source;
• and
• a valve seat formed at an edge of a through-flow passage the valve body and the valve seat cooperatively forming a poppet valve, the valve being configured to control a flow rate in accordance with a movement of the valve body,
• wherein a flow passage on a downstream side of the poppet valve is provided with an increase region where a flow passage cross-sectional area tends to increase toward the downstream side,
• the valve body has a surface portion which partially defines the flow passage of the increase region,
• the curved shape portion is brought into contact with and separated from the valve seat,
• the valve seat is formed in a valve seat member that is formed separately from the valve housing,
• the valve seat member is inserted into a recess portion of the valve housing in a valve opening direction of the valve body and press-fitted to the valve housing, and
• the valve body has an axial end surface which is configured to come into contact with the valve seat and formed by a curved surface bulged out toward the flow passage without having a recess portion, and an outer peripheral surface directly connected to the axial end surface to extend in an axial direction and partially forming the surface portion.