Internal-combustion engines – Cooling – With jacketed head and/or cylinder
Reexamination Certificate
2006-10-31
2006-10-31
Kamen, Noah P. (Department: 3747)
Internal-combustion engines
Cooling
With jacketed head and/or cylinder
C123S666000
Reexamination Certificate
active
07128028
ABSTRACT:
A water-cooled cylinder head for a multicylinder internal-combustion engine, has a cylinder head housing which has charge cycle ducts, passage bores for receiving cylinder head screws, valve stem guides for inlet and outlet valves controlling the charge cycle ducts, and part-spherical combustion chamber caps which are bounded by a water cooling jacket on a side facing away from the combustion chamber. One spark plug dome respectively has an opening leading to the combustion chamber of the respective cylinder. For reinforcing the cylinder head housing and/or for supporting the part-spherical combustion chamber caps, a rib structure is integrated in the cylinder head housing.
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Ickinger Frank
Paul Michael
Crowell & Moring LLP
Dr. Ing. h.c.F. Porsche Aktiengesellschaft
Kamen Noah P.
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