Diecast cylinder crankcase
OwnerNorbert Grunenberg, Guido Soell +1inventors
InventorsNorbert Grunenberg, Guido Soell, Heinrich Wodarski
Life of this patent
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Abstract
The invention relates to a diecast cylinder crankcase into which a liner (4) consisting of a plurality of cylinder sleeves is cast. Said liner (4) is produced by sandcasting and is placed in the diecasting mould. The liner (4) comprises an at least partially closed water jacket (6) which can optionally comprise cooling channels (10) in the connecting section (12).
Claims12
A high-pressure die-cast cylinder crankcase, wherein
- at least one continuous row (4) of at least two cylinder barrels (5) is cast into the cylinder crankcase (2),
- the row of cylinder barrels (4) comprises a sand casting or chill casting,
- the row of cylinder barrels (4) has at least one water jacket (6), and
- the water jacket is at least partially closed with respect to a side (18) of the cylinder crankcase (2) which faces a cylinder head.
A high-pressure die-cast cylinder crankcase, wherein
- at least one continuous row (4) of at least two cylinder barrels (5) is cast into the cylinder crankcase (2),
- the row of cylinder barrels (4) comprises a sand casting or chill casting,
- the row of cylinder barrels (4) has at least one water jacket (6), and
- the at least one cooling passage (10) of the water jacket (6) runs through the web region (12) between the cylinder barrels (5).
A process for producing the high-pressure die-cast cylinder crankcase wherein
- at least one continuous row (4) of at least two cylinder barrels (5) is cast into the cylinder crankcase (2),
- the row of cylinder barrels (4) comprises a sand casting or chill casting,
- the row of cylinder barrels (4) has at least one water jacket (6), and
- the water jacket is at least partially closed with respect to a side (18) of the cylinder crankcase (2) which faces a cylinder head;
- said process comprising the following steps:
- casting a row of cylinder barrels (4) using a lost core so as to form an at least partially closed water jacket (6),
- placing the row of cylinder barrels (4) into a high-pressure die-casting die of a cylinder crankcase (2), and
- high-pressure die-casting the cylinder crankcase (2) and at the same time casting in the row of cylinder barrels (4).
A process for producing the high-pressure die-cast cylinder crankcase wherein
- at least one continuous row (4) of at least two cylinder barrels (5) is cast into the cylinder crankcase (2),
- the row of cylinder barrels (4) comprises a sand casting or chill casting,
- the row of cylinder barrels (4) has at least one water jacket (6), and
- the at least one cooling passage (10) of the water jacket (6) runs through the web region (12) between the cylinder barrels (5);
- said process comprising the following steps:
- casting a row of cylinder barrels (4) using a lost core so as to form an at least partially closed water jacket (6),
- placing the row of cylinder barrels (4) into a high-pressure die-casting die of a cylinder crankcase (2), and
- high-pressure die-casting the cylinder crankcase (2) and at the same time casting in the row of cylinder barrels (4).
Dependencies are inferred from the claim text.