Injector seat that includes a coined seal band
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United States of America Patent
Stats
-
Nov 16, 2010
Grant Date -
Mar 31, 2005
app pub date -
Sep 28, 2004
filing date -
Sep 29, 2003
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A fuel injector apparatus and method for use in a fuel injection system of an internal combustion engine that includes a body, a valve seat, closure member, and an orifice plate. The valve seat comprises the intersection of two angled surfaces before assembly of the fuel injector. During assembly of the fuel injector, a member presses against the edge of the sealing surface of the valve seat to create an oblique third sealing surface or sealing band that is coined into the valve seat. The sealing band provides an improved seal between the valve closure member and the valve seat which operates to prevent leakages of fuel in the fuel injector.
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