The ornamental design for a coolingfan for projector, as shown and described.
FIG. 1 is a front, left side, bottom perspective view of a cooling fan for projector showing our new design;
FIG. 2 is a front elevational view thereof;
FIG. 3 is a rear elevational view thereof;
FIG. 4 is a left side view thereof;
FIG. 5 is a right side view thereof;
FIG. 6 is a top plan view thereof;
FIG. 7 is a bottom plan view thereof;
FIG. 8 is a cross-sectional view taken in the direction of arrows 8-8 in FIG. 2; and,
FIG. 9 is a cross-sectional view taken in the direction of arrows 9-9 in FIG. 2.
The structural elements depicted by means of broken lines are shown for the purpose of illustrating portions of the cooling fan for projector that form no part of the claimed design.