Cylinder head insert method

Details Cylinder head insert method Cylinder head insert method

2008-01-07

2011-11-22

Cozart, Jermie (Department: 3726)

Metal working

Method of mechanical manufacture

Prime mover or fluid pump making

C029S447000, C029S525000, C029S557000, C123S193500, C403S273000

Reexamination Certificate

active

08061030

ABSTRACT:
A cylinder head modification method includes the steps of selecting a cylinder head for an internal combustion engine having a plurality of combustion chambers and the cylinder head having a plurality of combustion chamber faces on the top of each combustion chamber. An elongated cylinder head insert is selected having a generally T-shaped cross-section and then forming an elongated slot in the selected cylinder head between a pair of combustion chamber faces. The elongated slot is shaped to receive the elongated cylinder head insert therein. A method includes press fitting the elongated cylinder head insert into the elongated slot and the cylinder head to thereby reduce localized high temperature deformations in the cylinder head. The method includes the step of heating the cylinder head to expand the slot for pressure fitting the cylinder head insert thereinto. The cylinder head insert is then nailed to a predetermined height above the cylinder head face after the cylinder head insert has been press fitted into the cylinder head slot.

REFERENCES:
patent: 7448134 (2008-11-01), Nagai et al.

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