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1. 发明授权

US5609304A Electromagnetic type fuel injection valve 失效
标题翻译：电磁式燃油喷射阀
公开(公告)号：US5609304A
公开(公告)日：1997-03-11
申请号：US366412
申请日：1994-12-29
申请人： Isamu Sasao
发明人： Isamu Sasao
IPC分类号： F02B1/04 , F02B61/02 , F02M51/06 , F02M61/18
CPC分类号： F02M61/1806 , F02B61/02 , F02M51/0614 , F02M51/0667 , F02M51/0678 , F02B1/04
摘要： Disclosed is an improvement of electromagnetic type fuel injection valve comprising: a cylindrical housing having a stationary core therein; an annular yoke positioned in the vicinity of the opening end of the housing; a coil positioned in the space defined by the housing, the stationary core and the yoke; a valve seat piece having a needle valve put therein, the valve seat piece being positioned ahead of the yoke, and comprising a valve seat and a fuel metering-and-injecting aperture consecutive to the valve seat to be opened and closed by the front end of the needle valve; and a movable plunger integrally connected to the rear end of the needle valve, opposing the end of the stationary core. The fuel injection valve is designed according to the present invention so that the flow rate at which the fuel is injected from the fuel injection valve when fully opened is 20 L/H with the fuel metering-and-injecting aperture having a maximum effective injection area of 0.3 mm.sup.2, and that the product of L.times.D ranges from 1.8 cm.sup.3 to 3.6 cm.sup.3, where L stands for the longitudinal length of the magnetic path formed by the housing and the yoke, and D stands for the diameter crossing the longitudinal length L.
摘要翻译：公开了一种电磁式燃料喷射阀的改进，包括：其中具有固定铁芯的圆柱形壳体; 定位在所述壳体的开口端附近的环形轭; 定位在由壳体，固定铁芯和轭架限定的空间中的线圈; 具有放置在其中的针阀的阀座件，所述阀座件位于所述轭架的前方，并且包括与所述阀座连续的阀座和燃料计量和注入孔，以由所述前端开启和关闭的针阀; 以及与针阀的后端一体地连接到与固定铁心的端部相对的可动柱塞。根据本发明设计燃料喷射阀，使得当完全打开时从燃料喷射阀喷射燃料的流量为20L / H，燃料计量和喷射孔具有最大有效喷射面积为0.3mm 2，并且LxD的乘积为1.8cm 3至3.6cm 3，其中L表示由壳体和轭形成的磁路的纵向长度，D表示与纵向长度L交叉的直径。

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