Cast-in object plate member, partition plate for intake...

Details Cast-in object plate member, partition plate for intake... Cast-in object plate member, partition plate for intake...

2006-04-25

2006-04-25

Yuen, Henry C. (Department: 3747)

Internal-combustion engines

Particular piston and enclosing cylinder construction

Cylinder head

C123S188140

Reexamination Certificate

active

07032559

ABSTRACT:
A partition plate (cast-in object plate member) is preliminarily set in an intake-port forming sand core, by which an intake port of a cylinder head is molded, and cast in during cast molding of the cylinder head for partitioning the intake port. The partition plate has both distal ends, spaced apart in a longitudinal direction, one of which corresponds to an intake-side distal end at which an acute-angled end face is formed to induce core breaking in a port core at an area closer to the intake-side distal end.

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U.S. Appl. No. 10/967,144, Katou et al., filed Oct. 19, 2004.
U.S. Appl. No. 10/968,004, Yageta et al., filed Oct. 20, 2004.

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