Fuel cooled injector tip
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United States of America Patent
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Feb 20, 2018
Issued Date -
N/A
app pub date -
Aug 12, 2016
filing date -
Aug 12, 2015
priority date (Note) -
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Abstract
A fuel injector is provided comprising an outer housing, a nozzle housing disposed within the outer housing, a flow path between the outer housing and the nozzle housing, the flow path being coupled to a low pressure fuel source, and a circumferential gap in flow communication with the flow path and extending about a tip of the fuel injector between an outer surface of the nozzle housing and an inner surface of a combustion shield adjacent the injector tip. The circumferential gap is in flow communication with a drain gap between the outer housing and a bore for receiving the fuel injector, the drain gap routing the low pressure fuel away from the injector tip.
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