会员体验
专利管家(专利管理)
工作空间(专利管理)
风险监控(情报监控)
数据分析(专利分析)
侵权分析(诉讼无效)
联系我们
交流群
官方交流:
QQ群: 891211   
微信请扫码    >>>
现在联系顾问~
热词
    • 6. 发明公开
    • FUEL INJECTION CONTROL DEVICE FOR INTERNAL COMBUSTION ENGINE
    • VORRICHTUNG ZUR KRAFTSTOFFINJEKTIONSSTEUERUNGFÜRVERBRENNUNGSMOTOREN
    • EP2184482A1
    • 2010-05-12
    • EP08829232.1
    • 2008-09-08
    • Toyota Jidosha Kabushiki KaishaDENSO CORPORATION
    • OKUMURA, FumihiroNOMURA, Shigeo
    • F02M45/08F02M47/00F02M61/10
    • F02M45/086F02M47/027F02M61/12F02M61/182F02M63/0225F02M2200/46
    • When a control valve 48 allows communication through a fuel drain channel C3, fuel flows into an inner control chamber R2i from an outer control chamber R2o through a communication channel 47 and flows out from the inner control chamber R2i to a fuel tank T. The flow of fuel through the communication channel 47 generates a differential pressure between inner control pressure Pci and outer control pressure Pco (Pco > Pci). Thus, an outer differential pressure immediately after an outer valve opening time can be set small, thereby restraining an increase in the unburnt HC content of exhaust gas at low load, which could otherwise result from a high rising speed of an outer needle valve 42 immediately after the outer valve opening time. Also, an inner differential pressure immediately after an inner valve opening time can be set large, thereby restraining an increase in the smoke content of exhaust gas, which could otherwise result from a low rising speed of an inner needle valve 43 immediately after the inner valve opening time.
    • 当控制阀48允许通过燃料排放通道C3进行连通时,燃料从外部控制室R2o通过连通通道47流入内部控制室R2i,并从内部控制室R2i流出到燃料箱T.流动 的燃料通过连通通道47产生内部控制压力Pci和外部控制压力Pco(Pco> Pci)之间的差压。 因此,可以将外部开阀时间之后的外部差压设定得较小,从而抑制在低负载下的排气的未燃HC含量的增加,否则可能由于外针阀42的上升速度而立即 后外阀打开时间。 此外,内部开阀时间之后的内部差压可以被设定得较大,从而抑制排气的烟雾含量的增加,否则,内部阀 营业时间。
    • 9. 发明授权
    • FUEL INJECTION VALVE FOR INTERNAL COMBUSTION ENGINE
    • 内燃机燃油喷射阀
    • EP2134953B1
    • 2012-01-25
    • EP08737377.5
    • 2008-04-03
    • Toyota Jidosha Kabushiki Kaisha
    • FUTONAGANE, YoshinoriWATANABE, YoshimasaNOMURA, ShigeoNISHIJIMA, Yoshiaki
    • F02M45/08F02M63/02
    • F02M45/086F02M47/027F02M61/182F02M63/0225F02M2200/46
    • A fuel injection valve (2) includes a first injection hole group (14), a second injection hole group (15), a control chamber (20), a first needle valve (12), and a second needle valve (13). The first needle valve (12) opens/closes an injection hole in the first injection hole group (14). The second needle valve (13) opens/closes an injection hole in the second injection hole group (15). Lifting of the first needle valve (12), and lifting of the second needle valve (13) are controlled by a pressure of fuel in the control chamber (20). An automatic valve (32) is further provided to change a flow rate at which the fuel flows into the control chamber (20), or a flow rate at which the fuel flows out from the control chamber (20), based on a common-rail pressure in a fuel supply source (1), when the needle valves (12, 13) are lifted. Thus, the fuel injection valve (2) injects fuel at the optimum fuel injection rate in various engine operating states.
    • 燃料喷射阀2包括第一喷射孔组14,第二喷射孔组15,控制室20,第一针阀12和第二针阀13。 第一针阀(12)打开/关闭第一注入孔组(14)中的注入孔。 第二针阀(13)打开/关闭第二喷孔组(15)中的喷孔。 第一针阀(12)的提升和第二针阀(13)的提升由控制室(20)中的燃料压力控制。 还设置有自动阀(32),用于基于共同作用而改变燃料流入控制室(20)的流量或者燃料从控制室(20)流出的流量, 当针阀(12,13)被提升时,在燃料供应源(1)中的轨道压力。 因此,燃料喷射阀(2)在各种发动机运转状态下以最佳燃料喷射率喷射燃料。