Patent ID: 7000633

Claim:
A fluid flow control device comprising: a housing whose peripheral wall is cylindrical and penetrated by a plurality of fluid passages; a valve member contained in the housing and controlling a flow amount of fluid that passes through the fluid passages; and a filter that is attached, circumferentially with respect to an axis of the housing, around the peripheral wall of the housing, the filter including: a filtering element that covers a certain fluid passage of the fluid passages for inhibiting a foreign object from entering the certain fluid passage; a supporting portion that extends circumferentially with respect to the axis of the housing, for supporting a peripheral edge of the filtering element, with having certain breadth that is formed in parallel with the axis of the housing; and a connecting portion that extends circumferentially with respect to the axis of the housing for connecting between circumferential both ends of the supporting portion, with having given breadth that is formed in parallel with the axis of the housing, wherein the given breadth of the connecting portion is narrower than the certain breadth of the supporting portion, wherein the filter is movable to both ends of a virtual line perpendicular to the axis of the housing within a movable range according to a clearance between the filter and the peripheral wall of the housing, wherein a first sealing portion is formed in a portion, which surrounds an opening of the certain fluid passage, of an outer surface of the peripheral wall of the housing, and a second sealing portion is formed in a portion, which surrounds the filtering element, of an inner surface of the supporting portion of the filter, and wherein the first sealing portion and the second sealing portion seal a gap between them with each other by contacting with each other, with being able to be slid within the movable range of the filter.