Method and apparatus for casting aluminum engine blocks with cooling liquid passage in ultra thin interliner webs
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United States of America Patent
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Issued Date -
Nov 10, 2005
app pub date -
Apr 20, 2005
filing date -
Apr 20, 2004
priority date (Note) -
Abandoned
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Abstract
Casting method and apparatus for forming fluid cooling passages in the webs having a minimum dimension of 3 mm or less between iron cylinder liners in aluminum engine blocks by utilizing very thin pre-formed reinforced cores inserted between adjacent liners and conjoined with the outer water jacket core. The reinforced core is made of a supportive very thin reinforcing element, preferably in the form of a rectangular metal strip, or other material that withstands the casting process, with a thin coating layer that protects such element and permits its ready removal after formation of the casting, which layer may advantageously and inexpensively be formed of conventional casting sand with a typical binder.
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