离心式伞喷喷油嘴
申请公布号:CN103397964A
申请号:CN201310359068.4
申请日期:2013.08.19
申请公布日期:2013.11.20
发明人:王抗美
分类号:F02M61/10(2006.01)I
主分类号:F02M61/10(2006.01)I
地址:274019 山东省菏泽市牡丹区天香路111号菏泽市委家属院3号楼201室D5-038号信箱
摘要:一种离心式伞喷雾化装置,为内燃机HCCI燃烧提供了一种新的燃油雾化方法及结构和功能;为涡轮和涡轮轴发动机离心式喷油嘴提供了一种扩大燃料流量可调范围和能直接自动开闭喷孔(11)的方法和结构,解决了停机时燃油经喷孔外泄,起动初始喷射油压低,影响雾化效果,容易形成积碳、堵塞喷孔的问题。其特征是:针阀体(1)内的针阀(5)头部有节流导向锥体(13)。针阀(5)座面(16)与旋流室(10)座面(17)配合,脉动式直接开闭喷孔(11)。压力室(8)与旋流室(10)之间,有一组切向孔(9),带有切向力的燃油经过旋流室(10)切向旋转后,从喷口(12)喷出,在燃烧室内形成一个无密实油束核心、贯穿距可控、高速旋转的中空的伞状油膜。
主权项:用于往复式内燃发动机及涡轮和涡轮轴发动机燃油系统的离心式伞喷雾化装置,其特征是:针阀体(1)上有定位孔(2)、(7),针阀体(1)内有衬套(4)、针阀(5)、进油道(3)和(6)、压力室(8)、切向孔(9)、旋流室(10)、喷孔(11)、喷口(12),压力室(8)与旋流室(10)之间有一组能使燃油产生旋转运动的切向孔(9),针阀(5)头部有节流导向锥体(13),针阀(5)座面(16)与旋流室(10)座面(17)配合,可关闭、开启喷孔(11)。
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