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AssigneeAktiebolaget Electrolux
InventorBo. I. R. Jonsson
Estimating the term…
The mold comprises an outer mold part (10) which defines a mold cavity (11). Walls of the outer mold part form the outer surface of the combined engine block and cylinder head. There also are first and second inner mold parts (12, 13) which extend into the mold cavity and are maintained a distance from each other. Each of the first and second inner mold parts have a cylindrical portion (12a, 13a) which, during the casting procedure, forms the cylinder bores in the engine block. The first and second inner mold parts (12, 13) also each have an upper portion (12b, 13b) situated above the cylindrical portion. During the casting procedure the upper portions form portions of a combustion chamber common to the cylinder bores. The mold further includes an third inner mold part (15) which extends through the outer mold part (10) and cooperates with the first and second inner mold parts (12, 13) to form the combustion chamber during the casting procedure.
A press casting method for producing a combined engine block and cylinder head for a twin piston engine, comprising the steps of:
A mold in which a combined engine block and a cylinder head for a twin piston engine is press-cast, comprising an outer mold part (10) having walls which define a mold cavity (11), said walls defining an outer surface of the combined engine block and cylinder head during a casting procedure, first and second inner mold parts (12, 13) located within the mold cavity and spaced a distance from each other, said first and second inner mold parts each having a cylindrical portion (12a, 13a) which, during the casting procedure, forms a cylinder bore in the combined engine block and cylinder head, each of the first and second inner mold parts (12, 13) also comprising an upper portion (12b, 13b) provided relatively above the cylindrical portion and which, during the casting procedure, cooperate with a third inner mold part to form portions of a combustion chamber common to the cylinders, said third inner mold part (15) extending through the outer mold part (10) and into the mold cavity.
Dependencies are inferred from the claim text.