Lightweight piston for internal combustion engines
AssigneeKarl Schmidt GmbH
InventorsWalter Kelm, Ulrich Landau
Life of this patent
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Abstract
In a cast light-alloy piston having a skirt which is recessed adjacent to the piston pin bosses, the two sides of the skirt are unsymmetrical with respect to the piston pin bosses. For an improved adaptation to the different conditions of operation of the engine, the skirt is connected to the piston pin bosses on one side by supporting ribs which extend at an angle of 30 to 60 degrees to the piston pin axis, and on the other side by supporting ribs extending at an angle of 90.degree. to the piston pin axis.
Claims7
A cast light-alloy piston comprising a skirt, piston pin bosses, said skirt being recessed adjacent to said bosses, said skirt being non-symmetrical on both sides of the plane of the piston pin, said skirt
- (a) being connected on one side to said piston pin bosses by first supporting ribs which extend at an angle of 30 to 60 degrees to the piston pin axis,
- (b) being connected on the other side to the piston pin bosses by second supporting ribs which extend at an angle of 90 degrees to the piston pin axis.
Dependencies are inferred from the claim text.