Internal-combustion engines – Frame construction – Horizontal cylinder
Reexamination Certificate
2006-05-23
2006-05-23
Yuen, Henry C. (Department: 3747)
Internal-combustion engines
Frame construction
Horizontal cylinder
C123S1950HC
Reexamination Certificate
active
07047928
ABSTRACT:
A method of high pressure die casting in iron alloy reinforcements for main bearing scantlings in an aluminum alloy engine block for an internal combustion engine. Prior to casting, reinforcements (1) having bores (6) for main bearing screws are placed in a die cavity (21), so that cores for main bearing screws protrude into the bores in each reinforcement on one side of the reinforcement. Then the reinforcements are fixed in the die cavity by placing a cylinder liner core (25) against a surface (27) of the reinforcement on the opposite side of the reinforcement.
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Benton Jason
Brooks & Kushman PC
Coppiellie Raymond L.
Ford Global Technologies LLC
Yuen Henry C.
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