Method of increasing heat transfer of a fitted material of a cyl

Details Method of increasing heat transfer of a fitted material of a cyl Method of increasing heat transfer of a fitted material of a cyl

1997-07-11

1999-05-04

Solis, Erick R.

Internal-combustion engines

Valve

Reciprocating valve

1231889, 2988806, 29888061, F01L 300

Patent

active

058991859

ABSTRACT:
A soldering layer is formed on a valve guide or valve seat and/or a holding bore of a cylinder head in an internal combustion engine. The solder can be melted below the highest temperature which the valve guide or valve seat reaches during operation of the internal combustion engine. The valve guide or valve seat is a press fit in the holding bore of the cylinder head, and with operation of the internal combustion engine, the soldering layer is melted to close gaps on the contacting surfaces between the holding bore and valve guide or valve seat. The soldering layer finally has a higher melting point than the highest temperature of the valve guide or valve seat as above. During operation of the engine, the soldering layer is not melted.

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