专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

42. 发明授权

KR101058713B1 솔레노이드밸브와 셔틀밸브를 가진 디젤엔진용 2단 연료분사밸브 有权
标题翻译：用于柴油发动机的两相燃油喷射阀的电磁阀和开关阀
公开(公告)号：KR101058713B1
公开(公告)日：2011-08-22
申请号：KR1020100020423
申请日：2010-03-08
申请人： 현대중공업 주식회사
发明人： 박득진 , 김응성 , 김주태 , 김종석 , 허광철 , 정강윤 , 하은
IPC分类号： F02M45/10 , F02M61/10 , F02M61/16
CPC分类号： F02M45/04 , F02M45/12 , F02M47/027 , F02M61/042 , F02M61/10 , F02M61/182 , F02M63/004
摘要： PURPOSE: A two-stage fuel injection valve having a solenoid valve and a shuttle valve for a diesel engine is provided to enable high-pressure injection in a low load by raising the injection pressure through an internal device. CONSTITUTION: A two-stage fuel injection valve for a diesel engine comprises a fuel valve block(110), a nozzle(140), a needle valve(130), pressure booster spindles(141,142,143), needle springs(132,133,134,135), a shuttle valve(150), a lifting bush valve(180), and a solenoid valve(201). The fuel valve block has a flow path(1701) in which fuel oil is injected at specific pressure through a fuel oil inlet(170). The nozzle comprises a low pressure nozzle hole(160) and a high pressure nozzle hole(161). The needle valve is installed inside the nozzle and opens the low pressure nozzle hole and the high pressure nozzle hole successively at different timings. The pressure booster spindles are formed stepwise and press the needle valve to raise the pressure of the fuel oil of low load to high pressure. The needle springs provide an elastic force to the pressure booster spindles. The shuttle valve raises the pressure of the fuel oil by providing the pressure booster spindles with relative pressure corresponding to the main pressure of the fuel oil provided to the needle valve. The lifting bush valve discharges the fuel oil to a fuel oil outlet through a gap between the lifting bush valve and a lower nozzle holder when the solenoid valve located on the upper side is raised. The solenoid valve controls the pressure applied to the top of the lifting bush valve using a solenoid valve spring(131) in order to regulate the fuel injection timing.
摘要翻译：目的：提供一种具有电磁阀和用于柴油发动机的往复阀的两级燃料喷射阀，以通过内部装置提高注射压力来实现低负载下的高压注射。构成：用于柴油发动机的两级燃料喷射阀包括燃料阀块（110），喷嘴（140），针阀（130），增压器主轴（141,142,143），针弹簧（132,133,134,135），梭阀门（150），升降套管阀（180）和电磁阀（201）。燃料阀块具有通过燃料油入口（170）以特定压力喷射燃料油的流路（1701）。喷嘴包括低压喷嘴孔（160）和高压喷嘴孔（161）。针阀安装在喷嘴内，在不同的时刻连续打开低压喷嘴孔和高压喷嘴孔。增压器主轴逐步形成，按压针阀，将低负载燃料油的压力提高到高压。针簧对增压器主轴提供弹性力。梭阀通过提供相应于提供给针阀的燃油的主压的相对压力来提供加压主轴来提高燃料油的压力。当位于上侧的电磁阀升高时，提升衬套阀通过提升衬套阀和下部喷嘴座之间的间隙将燃料油排出到燃料油出口。电磁阀使用电磁阀弹簧（131）来控制施加到提升套管阀顶部的压力，以调节燃料喷射正时。

IPRDB

热门服务

关于我们

友情链接

联系方式