公开(公告)号：US20210277997A1

公开(公告)日：2021-09-09

申请号：US17319530

申请日：2021-05-13

申请人： NUOVO PIGNONE TECNOLOGIE S.R.L

发明人： Gianni ORSI ,  Alberto BABBINI ,  Aigbedion AKWARA ,  Federico SORGONA' ,  Stephen J. WAYMEYER

IPC分类号： F16J15/16 ,  F16J15/26 ,  B33Y10/00 ,  B33Y80/00

摘要： Described herein is a packing box for mounting on a machinery shaft. In accordance with one aspect, the packing box housing defines a central opening for insertion of a movable machinery shaft with a hollow passageway surrounding the central opening to form a path for the flow of a fluid coolant. The passageway is provided with a fluid inlet port and a fluid outlet port opening onto the outer surface of the packing box housing, and it is formed by a single conduit or by a plurality of conduits obtained through additive manufacturing process and connected in series or in parallel to wound around the central opening.