Patent ID: 8292611

Claim:
A cooling assembly comprising several cooling pins that are connected to the same fluid inlet, wherein each cooling pin is adapted to cool a moulded hollow plastic piece, comprises a hollow blowing pipe having a fluid inlet at one end and at least one fluid outlet at the opposite end, and fluid boosting means for boosting by Venturi effect the cooling fluid flow at the inlet of the blowing pipe and wherein the fluid boosting means comprise a first chamber having a cooling fluid inlet and connected to a second chamber by at least a bore of small diameter, and at least one suction opening that communicates with the second chamber, and wherein said second chamber communicates with the blowing pipe inlet, in such a way that a first cooling flow, that is introduced inside the first chamber, passes through the bore, enters into the second chamber and creates by suction effect a second air flow that is sucked into the second chamber through each suction opening, the first and second flows forming a cooling flow that enters into the blowing pipe.