Sheathed-element glow plug and method for its production
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United States of America Patent
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-
Nov 18, 2003
Grant Date -
Dec 19, 2002
app pub date -
May 23, 2002
filing date -
Jun 15, 2001
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A sheathed-element glow plug including a glow plug body and a heating rod inside the glow plug body, and a heating element. Optionally, the glow plug includes a control element, embedded in insulating material, associated with said heating element which is positioned within the heating rod. The heating element, at the end facing the electrical connection, has an internal pole, with internal pole lead-in, for connection to a power source; while, the end of said heating element facing the combustion chamber is connected to the tip of the heating rod. The glow plug also includes a contact tube which is pushed onto the end region of the heating rod facing the electrical connection in order to extend the heating rod in the direction of the electrical connection to define a hollow space between the contact tube and the internal pole, internal pole lead-in, which is filled with insulating material.
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