Fuel injector with built-in fuel pressure sensor

A fuel injector for an internal combustion engine is provided which has a fuel supply path and a nozzle chamber (15). The fuel supply path extends a spray hole (11). The nozzle chamber (15) is defined in the fuel supply path. A nozzle (1) is disposed within the nozzle chamber to establish or block a...

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Bibliographic Details
Main Authors TAGUCHI, TOORU, KONDO, JUN
Format Patent
LanguageEnglish
French
German
Published 16.03.2016
Subjects
BLASTING
COMBUSTION ENGINES
HEATING
HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
LIGHTING
MEASURING
MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER,MECHANICAL EFFICIENCY, OR FLUID PRESSURE
MECHANICAL ENGINEERING
PHYSICS
SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF
TESTING
WEAPONS
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Summary:A fuel injector for an internal combustion engine is provided which has a fuel supply path and a nozzle chamber (15). The fuel supply path extends a spray hole (11). The nozzle chamber (15) is defined in the fuel supply path. A nozzle (1) is disposed within the nozzle chamber to establish or block a fluid communication between the fuel supply path and the spray hole. A fuel pressure sensor (60) is installed in the fuel injector so as to be exposed to the fuel in the nozzle chamber. Specifically, the fuel pressure sensor is located closer to the spray hole than a prior art structure in which the fuel pressure sensor is installed in a fuel supply pipe, thus resulting in increased accuracy in measuring a change in pressure of the fuel arising from the spraying of the fuel from the spray hole.
Bibliography:Application Number: EP20090156425