Avl List Gmbh

Ugur Ergezen

Helmut Melde-Tuczai

Leopold Buchriegler

Tuomas Tanska

A crankcase for an internal combustion engine, has main bearing walls including main bearing blocks, and side walls with skirtlike extensions, the side of each main bearing block being at least partially separated from the inner surfaces of the side walls by a recess, the recess having a curved contour, at least in sections, whose curvature increases continuously from the side face of the bearing block to the inner surface of the side wall to avoid critical stresses in the area of the main bearing block.

Crankcase for an internal combustion engine

A cylinder liner for a liquid-cooled internal combustion engine, includes a cylinder liner collar which is adjacent to a cylinder head sealing plane and into which is formed at least one circular cooling duct. In order to ensure adherence to a temperature window between a maximum temperature and a minimum temperature during operation, the cross section of the cooling duct is formed by a closed profile line within the cylinder liner collar, and the cross section of the cooling duct has a substantially oblong shape whose height as measured substantially in the direction of the cylinder liner axis is larger than its maximum width as measured substantially in the radial direction of the cylinder liner, with the arrangement and/or the cross-sectional shape of the cooling duct being provided in such a way that the cooling of the cylinder liner collar is higher in an upper zone which is closest to the cylinder head sealing plane than in a lower zone of the cooling duct which is disposed remotest from the cylinder head sealing plane.

Growing community of inventors

Lieboch, Austria

Ugur Ergezen