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    • 41. 发明授权
    • Delivery pump
    • 输送泵
    • US06309173B1
    • 2001-10-30
    • US09486935
    • 2000-06-19
    • Peter Marx
    • Peter Marx
    • F04D2942
    • F04D9/002F04D5/002F04D29/188
    • A feed pump (2) designed for feeding fuel in a motor vehicle, with an impeller (7) having vane chambers (10, 10a, 11, 11a) delimited by guide vanes (12, 13), and in casing parts (3, 4) adjacent to the impeller (7) and having part-annular channels (14, 15) arranged in the region of the vane chambers (10, 10a, 11, 11a), has a degassing duct (19), the start of which is arranged downstream of an inlet port (8). Some of the vane chambers (10) are connected to the degassing duct (19) via pockets (20) worked into the impeller (7). By means of this degassing duct (19), gas bubbles present in the fuel are discharged reliably from the feed pump (2).
    • 一种用于在机动车辆中供给燃料的进料泵(2),其具有由导向叶片(12,13)限定的叶片室(10,10a,11,11a)的叶轮(7)和壳体部分(3, 4),邻近叶轮(7)并且具有布置在叶片室(10,10a,11,11a)的区域中的部分环形通道(14,15)具有脱气管道(19) 布置在入口(8)的下游。 一些叶片室(10)通过加工到叶轮(7)中的凹穴(20)连接到脱气管道(19)。 通过该脱气管道(19),存在于燃料中的气泡可靠地从进料泵(2)排出。