Supply hopper for supplying cooling oil into cooling duct of piston for internal combustion engine, has axial middle duct provided between ducts, and conducting portion of oil flowing through tube part into upper boundary of cooling duct

摘要

The hopper (1) has a diffuser (17) arranged on an upper side of a tube part (1a) including two ducts (18, 20), which are arranged on two sides of a longitudinal axis (14) and aligned radially outward. Cooling oil flowing through the tube part is deflected radially outward by the ducts, where the oil conducts into a cooling duct. The diffuser includes an axial middle duct (19) between the ducts. The middle duct conducts a portion of the cooling oil flowing through the tube part into an upper boundary of the cooling duct, where the boundary lies opposite to the hopper that is made of plastic.