Piston without a closed cooling chamber for internal combustion engines with at least one cooling oil nozzle per cylinder and a method for cooling this piston

摘要

The invention relates to a piston (1, 100) for internal combustion engines, comprising a ring field (3), a shank (4) and pin boss bores (5) and a cooling space (8), the cooling space (8) being directed in the direction of the pin boss bores (5). is open and a method for cooling the piston (1, 100).