Cast piston having reinforced combustion bowl edge

Details Cast piston having reinforced combustion bowl edge Cast piston having reinforced combustion bowl edge

1996-05-16

1997-08-26

Argenbright, Tony M.

Internal-combustion engines

Precombustion and main combustion chambers in series

Piston carried precombustion chamber

29888044, 92213, 1231936, 164111, 164112, F02F 326

Patent

active

056601565

ABSTRACT:
A cast piston which includes a metal insert and a combustion bowl, with the metal insert defining a sharp undercut structure at an upper portion of the combustion bowl. The sharp undercut structure of the insert contains combustible gases and helps improve emissions. The metal insert also strengthens the head of the piston. The cast piston is fabricated by positioning the metal insert in a casting mold and casting a piston in the mold. The final shape of the combustion bowl is produced by a machining process which forms the sharp undercut structure on the insert.

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