Patent ID: 8690122

Claim:
A valve device integrally assembling a valve side housing having a valve seat, a motor side housing provided with a motor, and a feeder-side housing, further comprising: a valve stem provided with a valve for abutting against the valve seat, and extending through a center hole of a rotor of the motor provided in the motor side housing to an interior of the feeder-side housing; a rotation stopper having an outer peripheral section and an inner peripheral section through which the valve stem passed on its way to the feeder-side housing; and a screw section provided around a portion of the valve stem passing through the center hole of the rotor of the motor to be in mesh with a thread section formed around the surface of the center hole thereof, wherein the inner peripheral section of the rotation stopper includes protrusions provided in an axial direction at substantially equally spaced intervals and the outer peripheral section of the rotation stopper includes a boss fixed between the valve side housing and the motor side housing, and the rotor of the motor includes a metallic pipe inserted and fixed therein with a portion of the metallic pipe to be protruded therefrom, the protruded portion thereof being fixed in a bearing and the bearing being secured in the motor side housing by insertion of a resin.