FUEL INJECTION VALVE

WIPO Patent Application WO/2016/143166

A1

The purpose of the present invention is to provide a fuel injection valve that can achieve sufficient atomization even if the spray angle is narrow. The present invention is a fuel injection valve, in which fuel flowing in from a fuel passage section 5c is made to flow so as to diffuse from the center of a fuel diffusion chamber 6B toward the outer circumference and to flow into a nozzle hole 7, wherein: the nozzle hole 7 comprises a first nozzle hole 7b, and a second nozzle hole 7d and a third nozzle hole 7a that neighbor the first nozzle hole 7b and are separated therefrom in the circumferential direction of the fuel diffusion chamber 6B; and, if the distance L4 between the center of the entry-side opening of the first nozzle hole 7b and the center of the entry-side opening of the second nozzle hole 7d is greater than the distance L1 between the center of the entry-side opening of the first nozzle hole 7b and the center of the entry-side opening of the third nozzle hole 7a, the exit-side opening of the first nozzle hole 7b is disposed on the inside of an arrangement circle 101 and on the second nozzle hole 7d side of a line segment 107.

YOSHIMURA KAZUKI (JP)
MATSUZAWA MITSUHIRO (JP)
ISHII EIJI (JP)
YAMAZAKI AKIHIRO (JP)
SAITO TAKAHIRO (JP)
KOBAYASHI NOBUAKI (JP)

PCT/JP2015/075990

September 15, 2016

September 14, 2015

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HITACHI AUTOMOTIVE SYSTEMS LTD (JP)

F02M61/18; F02M51/06

WO2014024292A1

2014-02-13

JP2007182807A	2007-07-19
JP2005307781A	2005-11-04
JP2009228467A	2009-10-08

POLAIRE I. P. C. (JP)
Polaire Intellectual Property Corporation (JP)

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