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    • 4. 发明申请
    • Fuel Injection System
    • 燃油喷射系统
    • US20080029066A1
    • 2008-02-07
    • US11579058
    • 2005-09-22
    • Yoshinori FutonaganeYoshimasa Watanabe
    • Yoshinori FutonaganeYoshimasa Watanabe
    • F02M69/46
    • F02M47/027F02M45/12F02M57/02
    • A fuel injector (1) in an internal combustion engine, wherein an intermediate chamber control valve (26) operated by the fuel pressure in a common rail (2) is arranged in a fuel flow passage (25) connecting a two-position switching type three-way valve (8) and an intermediate chamber (20) of a booster piston (17). When the fuel pressure in the common rail (2) is in a high pressure side fuel region, the booster piston (17) is operated by this intermediate chamber control valve (26), while when the fuel pressure in the common rail (2) is in a low pressure side fuel region, the operation of the booster piston (17) is stopped by this intermediate chamber control valve (26).
    • 一种内燃机中的燃料喷射器(1),其特征在于,在共轨(2)中由燃料压力操作的中间室控制阀(26)配置在连接两位置开关型 三通阀(8)和增压活塞(17)的中间室(20)。 当共轨(2)中的燃料压力处于高压侧燃料区域时,由该中间室控制阀(26)操作增压活塞(17),而当共轨(2)中的燃料压力 处于低压侧燃料区域,则该中间室控制阀(26)停止增压活塞(17)的运转。
    • 6. 发明申请
    • INSULATION DETERIORATION DIAGNOSIS APPARATUS
    • 绝缘检测诊断装置
    • US20120319699A1
    • 2012-12-20
    • US13582758
    • 2011-04-04
    • Yoshimasa WatanabeYoshiharu KanedaHiroshi NishizawaToru Oka
    • Yoshimasa WatanabeYoshiharu KanedaHiroshi NishizawaToru Oka
    • G01R31/12
    • G01R31/025G01R31/14G01R31/34G01R31/40
    • The invention is related to an insulation deterioration diagnostic apparatus for an electric path connected between an inverter device and an inverter-driven load device, including: a zero-phase current transformer having an annular magnetic core, a magnetizing coil wound around the magnetic core, and a detecting coil wound around the magnetic core, the transformer being for detecting a zero-phase current of an electric path; a magnetization control circuit for supplying an alternating current having a frequency at least twice as high as a drive frequency of the load device to the magnetizing coil to magnetize the magnetic core; and a frequency extracting circuit for extracting a frequency component identical to the drive frequency fd, from the output signal of the detecting coil, whereby precisely measuring a current leaking from an inverter-driven load device over a wide range of frequencies.
    • 本发明涉及一种连接在逆变器装置和逆变器驱动的负载装置之间的电路的绝缘劣化诊断装置,包括:具有环形磁芯,缠绕在磁芯上的磁化线圈的零相电流互感器, 以及缠绕在所述磁芯上的检测线圈,所述变压器用于检测电路的零相电流; 磁化控制电路,用于将具有至少两倍于负载装置的驱动频率的频率的交流电提供给磁化线圈以磁化磁芯; 以及频率提取电路,用于从检测线圈的输出信号中提取与驱动频率fd相同的频率分量,从而精确地测量在宽频率范围内从逆变器驱动的负载装置泄漏的电流。
    • 7. 发明授权
    • Fuel injection system
    • 燃油喷射系统
    • US07506635B2
    • 2009-03-24
    • US11547288
    • 2005-09-28
    • Kazuhiro OmaeYoshimasa Watanabe
    • Kazuhiro OmaeYoshimasa Watanabe
    • F02M37/04
    • F02M63/0047F02M47/027F02M57/025F02M59/105F02M59/366F02M63/0015F02M63/004F02M63/0045F02M63/0049F02M2200/44F02M2200/46F02M2547/006
    • A first valve element (32) and second valve element (34) are arranged in a pressure switching chamber (30) of a three-way valve (8). When switching a destination of a fuel flow passage (15) from a high pressure fuel feed passage (5a) to a low pressure fuel return passage (26a), the state where the first valve element (32) is open and the second valve element (34) is closed is switched through a state where the first valve element (32) and second valve element (34) are both closed to a state where the first valve element (32) is closed and the second valve element (34) is open. Fuel pressure of a pressure control port (55) sealed by a sliding seal face (53) formed at an outer circumference of the second valve element (34) is used to control an opening timing of a needle valve (9).
    • 第一阀元件(32)和第二阀元件(34)布置在三通阀(8)的压力转换室(30)中。 当将燃料流路(15)的目的地从高压燃料供给通路(5a)切换到低压燃料返回通路(26a)时,第一阀元件(32)打开的状态和第二阀元件 (34)闭合的状态切换到第一阀元件(32)和第二阀元件(34)都被关闭到第一阀元件(32)关闭并且第二阀元件(34)为 打开。 由形成在第二阀体(34)的外周的滑动密封面(53)密封的压力控制口(55)的燃料压力用于控制针阀(9)的打开正时。
    • 8. 发明申请
    • Fuel Injection System of Internal Combustion Engine
    • 内燃机燃油喷射系统
    • US20080053408A1
    • 2008-03-06
    • US11597992
    • 2006-03-27
    • Yoshinori FutonaganeYoshimasa WatanabeKazuhiko Seguchi
    • Yoshinori FutonaganeYoshimasa WatanabeKazuhiko Seguchi
    • F02M69/46
    • F02D41/405F02D41/2096F02M45/08F02M45/086F02M47/027F02M61/042F02M61/161F02M61/182F02M63/0043F02M63/0045F02M2200/46Y02T10/44
    • A fuel injection system deliberately utilizing after injection so as to improve the engine combustion and reduce soot and NOx, wherein at least one operating valve is provided for operating a first injection port group and second injection port group, after injection is performed consecutively after main injection in a high load region, fuel is injected from the first injection port group and second injection port group at the time of main injection, fuel is injected from the first injection port group at the time of after injection, the actual injection pressure near the first injection port during the after injection period is higher than the actual injection pressure near the first injection port during the main injection period, the operating valve opens the first injection port group to start the injection, then the operating valve opens the second injection port group simultaneously or in a short time as well to perform the main injection, the operating valve closes the second injection port group, then performs the after injection, and the operating valve closes the first injection port group and ends the injection after the elapse of a time longer than simultaneously or a short time from after start of after injection.
    • 燃料喷射系统在注射后故意利用,以改善发动机燃烧并减少烟灰和NOx,其中在主喷射之后连续执行至少一个操作阀以操作第一喷射口组和第二喷射口组 在高负荷区域中,在主喷射时从第一喷射口组和第二喷射口组喷射燃料,在喷射之后从第一喷射口组喷射燃料,在第一喷射口附近的实际喷射压力 喷射期间的喷射口高于主喷射期间第一喷射口附近的实际喷射压力,操作阀打开第一喷射口组以开始喷射,然后操作阀同时打开第二喷射口组 或者在短时间内执行主喷射,操作阀关闭第二次 接头端口组,然后执行后喷射,并且操作阀关闭第一喷射口组并且在经过长于同时喷射的时间之后结束喷射,或者在喷射开始后的短时间内结束喷射。