Invention Grant
- Patent Title: Valve seat insert
- Patent Title (中): 阀座插入
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Application No.: US12709327Application Date: 2010-02-19
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Publication No.: US09228458B2Publication Date: 2016-01-05
- Inventor: Paul T. Reinhart , Ken Steven Fedeson , Robert Stephen Furby
- Applicant: Paul T. Reinhart , Ken Steven Fedeson , Robert Stephen Furby
- Applicant Address: US MI Dearborn
- Assignee: Ford Global Technologies, LLC
- Current Assignee: Ford Global Technologies, LLC
- Current Assignee Address: US MI Dearborn
- Agency: Alleman Hall McCoy Russell & Tuttle LLP
- Agent Julia Voutyras
- Main IPC: F02B51/00
- IPC: F02B51/00 ; F01L3/04 ; F01L3/22 ; F02D41/30 ; F16K1/42 ; F16K25/00 ; F16K25/04 ; F02D41/00

Abstract:
In one example, a valve seat insert for a cylinder head seat pocket of an internal combustion engine is described. The valve seat insert comprises an annular body comprising a first material and including an inner surface, an outer surface opposite the inner surface, a front surface adjoining the inner and outer surfaces, and a back surface opposite the front surface adjoining the inner and outer surfaces. The front surface includes an inner circumference greater than an inner circumference of the back surface. The back surface includes a first recession inlaid with a sacrificial anode comprising a second material different from the first material and having an exposed surface. In this manner, it may be possible to substantially prevent corrosion of the cylinder head seat pocket.
Public/Granted literature
- US20110203555A1 Valve Seat Insert Public/Granted day:2011-08-25
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