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
    • 1. 发明授权
    • Fuel delivery system with recirculation cooler
    • 带循环冷却器的燃油输送系统
    • US06457460B1
    • 2002-10-01
    • US09711467
    • 2000-11-13
    • Kirk D. DoaneJason D. HattonEdward J. Talaski
    • Kirk D. DoaneJason D. HattonEdward J. Talaski
    • F02M3704
    • F02M37/0058F01P2050/02F01P2060/10F02M31/20F02M37/007F02M37/20F28F7/02Y02T10/126
    • A fuel system for a marine engine has a recirculation cooler which receives a portion of fuel discharged from a fuel pump, cools that fuel, and then returns the cooled fuel to the inlet of the fuel pump to reduce fuel vapor formation and to cool the pump as the cooled fuel flows through the pump. The recirculation cooler is preferably formed of a material of high thermal conductivity and has a water passage adjacent to the fuel passage to reduce the temperature of the fuel that flows through the recirculation cooler. The recirculation cooler is preferably used in high heat applications or with a speed controlled fuel pump, with a pulse width modulated drive, for example. In these applications, during at least some fuel flow conditions, the flow of fuel through the fuel pump may be insufficient to cool the fuel pump motor and may cause increased fuel vapor formation. Desirably, the cooler fuel provided from the recirculation cooler to the inlet of the fuel pump supplements the cooling of the fuel pump motor and reduces fuel vapor formation.
    • 用于船用发动机的燃料系统具有再循环冷却器,其接收从燃料泵排出的一部分燃料,冷却该燃料,然后将冷却的燃料返回到燃料泵的入口以减少燃料蒸气形成并冷却泵 因为冷却的燃料流过泵。 再循环冷却器优选由具有高导热性的材料形成,并且具有与燃料通道相邻的水通道,以降低流过再循环冷却器的燃料的温度。 再循环冷却器优选地用于高热应用或速度控制的燃料泵,例如具有脉宽调制驱动。 在这些应用中,在至少一些燃料流动状态期间,通过燃料泵的燃料流可能不足以冷却燃料泵电动机并且可能导致燃料蒸汽形成增加。 期望地,从再循环冷却器提供给燃料泵入口的冷却器燃料补充了燃料泵电机的冷却并且减少了燃料蒸汽的形成。
    • 4. 发明授权
    • Fuel pressure regulation system
    • 燃油压力调节系统
    • US06357422B1
    • 2002-03-19
    • US09579571
    • 2000-05-26
    • Kirk D. DoaneJohn D. Zmierski
    • Kirk D. DoaneJohn D. Zmierski
    • F02M4100
    • F02D7/02F02D41/3836F02D41/3845F02D2041/1409F02D2041/3088F02D2041/3881F02D2250/31F02M67/02
    • A fuel pressure regulation system for use in a fuel pump system in which atomizing air is injected into the fuel delivered to the injector. The system includes both an air rail and a fuel rail and is operable to maintain the fuel pressure within the system at a consistent pressure above the air rail pressure. The system also includes a first pressure sensor, a second pressure sensor, a control circuit, and a fuel pressure pump or other fuel control device. The first and second pressure sensors are differential pressure sensors which measure the air and fuel pressure, respectively, convert those measurements into first and second electronic signals, and send those signals to the control circuit. The control circuit is an electronic circuit that includes a first stage, a second stage, and an output stage and provides the fuel pump with closed loop control based on the first and second signals. Preferably, the closed loop control is achieved using both proportional and integral control with the output being in the form of a pulse-width modulated signal. The fuel pump is in fluid communication with the fuel rail and adjusts the fluid pressure within the fuel rail according to the pulse-width insulated signal sent by the control circuit.
    • 一种用于燃料泵系统的燃料压力调节系统,其中雾化空气被喷射到输送到喷射器的燃料中。 该系统包括空气轨道和燃料轨道,并且可操作以将系统内的燃料压力保持在高于空气轨道压力的一致压力。 该系统还包括第一压力传感器,第二压力传感器,控制电路和燃料压力泵或其它燃料控制装置。 第一和第二压力传感器是分别测量空气和燃料压力的差压传感器,将这些测量转换成第一和第二电子信号,并将这些信号发送到控制电路。 控制电路是包括第一级,第二级和输出级的电子电路,并且基于第一和第二信号向燃料泵提供闭环控制。 优选地,使用比例和积分控制来实现闭环控制,其中输出是脉冲宽度调制信号的形式。 燃料泵与燃料轨道流体连通,并根据由控制电路发送的脉冲宽度绝缘信号调节燃料轨道内的流体压力。