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AUG 7185-706L 326L 7185-906L 326L 7185-913L 326L 7185-917L 345L 7185-918L 328L 7185-127U 318U 7189-267K 004K 7189-039L 004L 7189-340L 159L 7189-376L 004L 7189-878L 018L 9050-191L 800L 9050-222L 511L 9050-228L 215L 9050-300L 215L 9050-304L 502L 9094-404S 708S 9187-210A 210A 电控喷油器是共轨式燃油系统中最关键和最复杂的部件，它的作用根据 ECU 发出的控制信号，通过控制电磁阀的开启和关闭，将高压油轨中的燃油以最佳的喷油定时、喷油量和喷油率喷入柴油机的燃烧室。BOSCH 和 ECD-U2 的电控喷油器的结构基本相似，都是由于传统喷油器相似的喷油嘴、控制活塞、控制量孔、控制电磁阀组成，图 5 为 BOSCH 的电控喷油器结构图。在电磁阀不通电时，电磁阀关闭控制活塞顶部的量孔 A ，高压油轨的燃油压力通过量孔 Z 作用在控制活塞上，将喷嘴关闭；当电磁阀通电时，量孔 A 被打开，控制室的压力迅速降低，控制活塞升起，喷油器开始喷油；当电磁阀关闭时，控制室的压力上升，控制活塞下行关闭喷油器完成喷油过程。PARent;">ABSolute;top:0;border:0;width:undefinedpx;height:undefinedpx;" frameborder="0" src="https://googleads.g.doubleclick.net/pagead/ads?client=ca-pub-6745515041074118&ouTPUt=html&adk=1812271804&adf=3279755396&plat=1%3A32776%2C2%3A32776%2C9%3A32776%2C10%3A32%2C11%3A32%2C16%3A8388608%2C17%3A32%2C24%3A32%2C25%3A32%2C30%3A1081344%2C32%3A32%2C40%3A32&guci=2.2.0.0.2.2.0.0&format=0x0&url=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fact%3D1&ea=0&flash=32.0.0&pra=5&wgl=1&adsid=NT&dt=1596508458267&bpp=17&bdt=103&idt=122&shv=r20200730&cbv=r20190131&ptt=9&saldr=aa&cookie=ID%3D304b6af2d14c8618%3AT%3D1594170233%3AS%3DALNI_Maq74S4nrwl8hj83g5M9J8GAvG8_A&nras=1&correlator=698356924287&frm=23&ife=1&pv=2&ga_vid=1595716353.1596508458&ga_sid=1596508458&ga_hid=862275758&ga_fc=0&iag=3&icsg=42&nhd=1&dssz=4&mdo=0&mso=0&u_tz=480&u_his=14&u_java=0&u_h=900&u_w=1600&u_ah=870&u_aw=1600&u_cd=24&u_nplug=14&u_nmime=24&adx=-12245933&ady=-12245933&biw=1583&bih=777&isw=730&ish=360&ifk=2699508910&scr_x=0&scr_y=0&eid=21066717%2C21066532&oid=3&pvsid=2789969311932814&pem=311&ref=https%3A%2F%2Fwww.bizrobot.com%2Fcompany_bloginfo.php%3Fadd_suc%3D1&rx=0&eae=2&fc=1920&brdim=0%2C93%2C0%2C93%2C1600%2C0%2C1600%2C777%2C730%2C360&vis=1&rsz=%7C%7Cs%7C&abl=NS&fu=8204&bc=29&ifi=0&uci=0.nu73ov7n0akl&dtd=151" marginwidth="0" marginheight="0" vspace="0" hspace="0" allowtransparency="true" scrolling="no" allowfullscreen="true" data-google-container-id="0.nu73ov7n0akl" data-load-complete="true"> |