Patent ID: 7798116

Claim:
Piston/connecting rod assembly ( 10 ) for an internal combustion engine, having an upper piston part ( 12 ) comprising pin boss supports ( 17 , 117 , 217 , 317 , 417 , 517 ) that lie opposite one another, having pin bosses ( 18 ) and pin bores ( 19 ), which delimit a recess ( 21 ) in which the small connecting rod eye ( 23 , 123 ) of a connecting rod ( 22 ) is disposed, whereby a piston pin is mounted in the small connecting rod eye ( 23 , 123 ) and the pin bores ( 19 ), wherein at least one oil guide surface ( 27 , 127 , 227 , 327 , 427 , 527 ) is provided on the surface ( 25 , 125 , 225 , 325 , 425 , 525 ) of at least one pin boss support ( 17 , 117 , 217 , 317 , 417 , 517 ) that faces the recess ( 21 ), ending in at least one oil collection chamber ( 28 , 128 , 228 , 328 , 428 , 528 ) disposed in the pin bore ( 19 ), in such a manner that the at least one oil guide surface ( 27 , 127 , 227 , 327 , 427 , 527 ) guides oil into the at least one oil collection chamber ( 28 , 128 , 228 , 328 , 428 , 528 ).