Internal-combustion engines – Frame construction – Horizontal cylinder
Patent
1986-05-13
1989-04-18
Lin, Kuang Y.
Internal-combustion engines
Frame construction
Horizontal cylinder
164 47, 164137, 420534, 420546, C22C 2102, F02F 700
Patent
active
048216941
ABSTRACT:
A hypereutectic aluminum-silicon casting alloy having particular use in casting cylinder blocks for marine engines. The alloy is composed by weight of 16% to 19% of silicon, 0.4 to 0.7% magnesium, up to 0.37% copper and the balance aluminum. With the stated silicon content the alloy has good fluidity and the precipitated silicon crystals provide excellent wear resistance. In addition, the alloy has a narrow solidification range of less than 150.degree. F., thereby providing the alloy with excellent castability. The copper content is maintained at a minimum so that the alloy has improved resistance to salt water corrosion.
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Aluminum Alloy with High Silicon Content, Stonebrook.
Donahue Raymond J.
Hesterberg William G.
Sheaffer Benjamin L.
Brunswick Corporation
Lin Kuang Y.
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