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    • 3. 发明授权
    • Quick priming fuel system and common passageway housing for same
    • 快速起动燃油系统和通用通道外壳相同
    • US06701900B1
    • 2004-03-09
    • US10379062
    • 2003-03-04
    • James S. MillarLloyd Thompson
    • James S. MillarLloyd Thompson
    • F02M3704
    • F02M37/22F02M37/20
    • In some fuel systems, such as those associated with a diesel engine, most if not all of the air that has leaked or been introduced into the fuel system must be evacuated before the fuel injectors can work properly to start the engine. Because such systems often utilize a pressure regulating valve to maintain the fuel system at some pressure, which is often substantially higher than atmospheric pressure, it can be difficult to evacuate air without first raising the air pressure in the fuel system above that which is required to open the pressure regulating valve. In addition, evacuating air from the fuel system can sometimes involve pushing the air through the fuel injectors in order to evacuate the same to the fuel tank. A quick priming fuel system includes air bleed passages that circumvent both the pressure regulating valve and the fuel injectors so that air can be quickly evacuated from the system at a relatively low pressure. These bleed bypass passageways are relatively restrictive to liquid flow so as not to undermine system pressure or otherwise undermine fuel supply to the fuel injectors.
    • 在一些燃料系统中,例如与柴油发动机相关联的燃料系统,在燃料喷射器能够正常工作以起动发动机之前,绝大多数(或不是全部)泄漏或被引入燃料系统中的空气必须被排空。 因为这种系统通常使用压力调节阀来将燃料系统保持在通常显着高于大气压力的某个压力下,所以难以在不首先将燃料系统中的空气压力提高到高于大气压所需的空气压力的情况下排空空气 打开压力调节阀。 此外,从燃料系统排出空气有时可能涉及将空气推过燃料喷射器以将其排出到燃料箱。 快速起动燃料系统包括排气通道,其绕过压力调节阀和燃料喷射器,使得空气可以在相对较低的压力下从系统中快速排出。 这些排放旁通通道对液体流动是相对限制的,以免破坏系统压力或以其它方式破坏燃料喷射器的燃料供应。