Liquid-cooled valve seat ring

Details Liquid-cooled valve seat ring Liquid-cooled valve seat ring

2006-06-20

2006-06-20

Kamen, Noah P. (Department: 3747)

Internal-combustion engines

Cooling

Valve seats or guides

C123S188900

Reexamination Certificate

active

07063051

ABSTRACT:
A cooled valve seat ring for a cylinder head of an internal combustion engine, having a valve seat part, wherein the cooled valve seat ring comprises a sheet-metal cooling channel consisting of a thin sheet of steel and which is connected with a coolant circuit via bores which serve as inflow and outflow for a coolant, wherein the cooled valve seat ring is connected with the cylinder head material by casting technology. In one embodiment, there can be a cooled valve seat ring that is connected with a cylinder head material via a laminate casting process. There can also be a cooled valve seat ring that has an alfin layer for a connection with the cylinder head material. In addition, the cooling channel can be welded onto or soldered onto the valve seat part. Furthermore, the sheet-metal cooling channel can be connected with the valve seat part so as to form a gas-tight seal.

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