Patent ID: 6152101
Filing Date: 2000-11-28
Classification: F02B,F02F,Y02T

Abstract:
A piston for an internal combustion engine, comprising:a combustion bowl formed contiguous to a face of a crown of the piston, said combustion bowl having a wall defining a first volume and a second volume, said second volume being in communication with said first volume and being located generally axially to the piston below the first volume;a smallest diameter of a throat portion connecting said first and second volumes is smaller than a greatest diameter of the first volume and is smaller than a greatest diameter of the second volume, said greatest diameter of the first volume is larger than a diameter of a mouth of the combustion bowl, and the greatest diameter of the second volume is smaller than the diameter of the combustion bowl mouth;a portion of the wall defining the first volume adjacent to the throat portion is at least one of parallel with and angled upwardly towards the face of the piston crown when viewed through the combustion bowl mouth.