Patent ID: 6435077
Filing Date: 2002-08-20
Classification: F02B,F02F,F05C,Y02T

Abstract:
A piston head for an internal combustion engine, comprising:an upper part having a piston crown extending substantially perpendicularly to a longitudinal axis of the piston head, and a lower part formed as one piece with said upper part and having two pin bosses with mutually facing sides spaced a mutual distance from one another across a space defined between said mutually facing sides of said pin bosses, said pin bosses including axially aligned pin holes extending along a pin hole axis perpendicularly to said longitudinal axis, and a cavity formed in a junction area of said upper and lower parts adjacent said piston crown and opening into said space between said pin bosses of said lower part; and wherein said mutually facing sides of said pin bosses are formed with at least one recess opening into said cavity and extending in the direction of said longitudinal axis.