| 主权项 |
1. An internal combustion engine for a motor vehicle having a cylinder housing (10) in the form of a light metal casting with at least two working cylinder sections (11, 12, 13, 14), including separate individual cylinder liners (15, 16, 17, 18) which consist of cast iron of rough-surface iron casting and which are integrally cast into the working cylinder sections (11, 12, 13, 14) with cylinder housing webs (24, 25, 26) with form-fit regions (22, 23) formed between adjacent cylinder liners (15, 16, 17, 18), the cylinder housing (10) including bore holes (19, 20, 21) formed in the cylinder housing webs (24, 25, 26) between the cylinder liners (15, 16, 17, 18) so as to extend through the form-fit regions (22, 23) in which the cylinder liners (15, 16, 17, 18) and the cylinder housing (10) are connected to one another and forming channels (19, 20, 21) for cooling the cylinder liners (15, 16, 17, 18), the bore holes (19, 20, 21), which have been formed by material removal after the liners have been cast into the working cylinder sections (11, 12, 13, 14) having a width at least as large as the width of the form-fit regions (22, 23) between adjacent cylinder liners (15, 16, 17, 18) so as to extend into the adjacent cylinder liners whereby the cooling channels (19, 20, 21) are partially delimited directly by the cylinder liners (15, 16, 17, 18) and the cylinder liners (15, 16, 17, 18) cast into the cylinder housing of the light metal casting are directly exposed to coolant in the cooling channels (19, 20, 21). |
