Igniter assembly with improved insulation and method of insulating the igniter assembly
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United States of America Patent
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Sep 15, 2020
Grant Date -
Nov 21, 2019
app pub date -
Jul 30, 2019
filing date -
Mar 27, 2017
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An igniter assembly comprising an ignition coil assembly connected to a firing end assembly by an extension, with a valve assembly disposed in a pressure chamber of the extension, is provided. The valve assembly includes a valve stem biased toward the ignition coil assembly by a spring to seal the pressure chamber. The valve assembly is used to evacuate contents from the pressure chamber by pressing the valve stem toward the spring and allowing contents of the pressure chamber to travel through and past the valve stem and out of the pressure chamber. The valve assembly is also used to fill the pressure chamber with an insulating medium by pressing the valve stem toward the spring and allowing the insulating medium to travel through and past the valve stem and into the pressure chamber after evacuating the contents out of the pressure chamber.
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