Sealing structure for gaseous fuel
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United States of America Patent
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Sep 29, 2020
Grant Date -
Dec 7, 2017
app pub date -
Dec 18, 2015
filing date -
Dec 18, 2014
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Abstract
In metal-on-metal sealing structures, the sealing criteria employed for high pressure liquid fuel does not work when sealing gaseous fuels. A technique for sealing a gaseous fuel between gaseous fuel conduits in an internal combustion engine includes forming a contact band between two surfaces of a sealing structure between a first conduit and a second conduit. A width of the contact band is at least equal to the larger of a minimum contact pressure width where contact pressure is at least equal to a predetermined minimum contact pressure; and a minimum yield zone width where at least one of the two surfaces have plastically deformed.
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