Spray hole profile
AssigneesDelphi Technologies, Inc., Holding S.arl
InventorsAndrew J. Limmer, Ricardo Pimenta, Malcolm David Dick Lambert, Celia C. Soteriou
Life of this patent
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AssigneesDelphi Technologies, Inc., Holding S.arl
InventorsAndrew J. Limmer, Ricardo Pimenta, Malcolm David Dick Lambert, Celia C. Soteriou
Estimating the term…
A fuel injector for an internal combustion engine comprising a nozzle body having at least one spray hole. The at least one spray hole has a hole entry on the inside of the nozzle body and a hole exit on the outside of the nozzle body. The spray hole is provided with a hole entry section which, starting from the hole entry, has a flow area which decreases from a relatively larger flow area at the hole entry to a relatively small flow area at the intersection between the end of the hole entry section and the start of a hole exit section. The hole exit section, starting from the intersection with the hole entry section, has a flow area which increases from a relatively small flow area at the intersection with the hole entry section to a relatively larger flow area at the hole exit.
A fuel injector for an internal combustion engine comprising a nozzle body having at least one spray hole wherein the at least one spray hole has a hole entry on the inside of the nozzle body and a hole exit on the outside of the nozzle body, and the spray hole is provided with a hole entry section which, starting from the hole entry, has a flow area which decreases from a relatively larger flow area at the hole entry to a relatively small flow area at the intersection between the end of the hole entry section and the start of a hole exit section, wherein the hole exit section, starting from the intersection with the hole entry section, has a flow area which increases from a relatively small flow area at the intersection with the hole entry section to a relatively larger flow area at the hole exit.
Dependencies are inferred from the claim text.