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公开(公告)号：US20160237969A1
公开(公告)日：2016-08-18
申请号：US15029821
申请日：2014-10-14
发明人： Masanori MIFUJI , Kiyotaka OGURA , Eiji ISHll
CPC分类号： F02M61/162 , F02M51/0614 , F02M61/1806 , F02M61/1813 , F02M61/1826
摘要： An object of the present invention is to provide a fuel injection valve that imparts swirl upstream of a seat portion and shortens a spray penetration. At injection holes set adjacent to an injection hole and at injection holes set adjacent otherwise, nonuniform pitch angles β1 and β2 among the holes as well as stronger flows into the injection holes by a smaller angle α due to a smaller inflow angle β1 of a fluid into the injection holes can shorten the spray penetration at the injection hole.
摘要翻译： 本发明的目的是提供一种燃料喷射阀，其将座椅部分上游的涡流赋予并且缩短喷射穿透。 在与喷射孔相邻设置的喷射孔和相邻地设置的喷射孔中，孔之间的不均匀桨距角β1和β2以及由于流体的较小流入角β1而以更小的角度α流入喷射孔 进入注射孔可以缩短喷射孔的喷射渗透。
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公开(公告)号：US20190170102A1
公开(公告)日：2019-06-06
申请号：US16303419
申请日：2017-01-20
发明人： Mitsuhiro MATSUZAWA , Kazuki YOSHIMURA , Eiji ISHll , Akihiro YAMAZAKI , Takahiro SAITO , Nobuaki KOBAYASHI
摘要： An object of the invention is to achieve sufficient atomization, while preventing a spray from spreading. A fuel injection valve includes a plurality of swirl fuel injection passages. Each of the swirl fuel injection passages includes a swirl chamber, a swirl chamber introduction passage, and an orifice and imparts a swirling force to fuel to thereby inject the fuel outside. A rectangular coordinate system is imagined on an imaginary plane. The rectangular coordinate system has a center of an inlet opening surface of the orifice as an origin and has an X-axis extending in parallel with a centerline of the swirl chamber introduction passage and being positive in a direction from an upstream side toward a downstream side of the swirl chamber introduction passage and a Y-axis extending perpendicularly to the X-axis and being positive in a direction away from the centerline. When the positive direction of the X-axis is defined as 0° and an angular direction of rotation from an angular position of 0° toward the centerline of the swirl chamber introduction passage is defined as a positive angular direction, the orifice has an inclination direction set to fall within a range from 0° to 180°, both exclusive, and a part of the inlet opening surface of the orifice is formed in the swirl chamber introduction passage.
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