Fluid injector and needle for a fluid injector

Various embodiments include a fluid injector comprising: an injector housing defining a fluid path; a needle within the housing and movable to a closed position and an open position. The needle comprises two axial ends, an end face on the second, and an axial needle section surrounded by the housing...

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Bibliographic Details
Main Authors Grandi, Mauro, Hornby, Michael J, Polidori, Valerio
Format Patent
LanguageEnglish
Published 31.05.2022
Subjects
BLASTING
COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MECHANICAL ENGINEERING
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
WEAPONS
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Summary:Various embodiments include a fluid injector comprising: an injector housing defining a fluid path; a needle within the housing and movable to a closed position and an open position. The needle comprises two axial ends, an end face on the second, and an axial needle section surrounded by the housing. Between the axial section and the surrounding housing, there is a gap comprising at least part of the fluid path. The needle includes a hole extending from the end face and a connecting hole providing fluid connection between the hole and the gap. The valve also includes a plate defining a through-hole. A first valve seat is defined at a surface of the plate facing the end face and adjoining the through-hole and when the needle is in the closed position the through-hole is closed by the end face.
Bibliography:Application Number: US201716328847