Patent ID: 8689743
Filing Date: 2014-04-08
Classification: F02F,F16J

Abstract:
1. A piston for an internal combustion engine, comprising: a piston head having a circumferential ring belt and a circumferential cooling channel in a region of the ring belt; a piston skirt having a working surface assigned to its major thrust side (DS) and one assigned to its minor thrust side (GDS), wherein a bore that proceeds from the cooling channel is provided, which bore makes a transition into a bore exit, which ends in the working surface assigned to the major thrust side (DS), and is disposed at an incline, in such a manner that the bore exit encloses an acute angle (α) with a center axis (M) of the piston, so that an opening is formed in the working surface below the pin boss center (N), wherein a deflection surface inclined relative to the working surface and making a transition into same is provided between the bore and the bore exit, wherein the working surface assigned to the major thrust side (DS) has a depression in the region of the opening, which depression surrounds the opening completely and forms at least one oil capture region above the opening, wherein the oil capture region extends crosswise to the opening, and wherein the oil capture region forms an oil collection reservoir on both sides to provide lubrication of regions of the working surface that are subject to the greatest stress during engine operation.