Cooling device and compressor system

A cooling device for cooling a fluid fed into a compressor, the cooling device comprising:

• a hollow shell;
• a cooler disposed inside the shell;
• an inlet nozzle that is configured to feed the fluid into the shell;
• an outlet nozzle that is configured to feed the fluid passing through the cooler so as to flow outward of the shell;
• and
• a guide member that is configured to change a flowing direction of the fluid fed into the shell from the inlet nozzle,
• wherein the guide member has
• a collision surface which spreads in an inclined direction inclined with respect to the flowing direction of the fluid fed into the shell from the inlet nozzle, and which collides with the fluid, and
• an uneven portion formed in at least a portion of a peripheral edge portion of the collision surface so that an concavo-convex shape is continuous along the peripheral edge portion.