Equipment for pumping fuel from a storage tank to the
internal-combustion engine of a motor vehicle
    1.
    发明授权
    Equipment for pumping fuel from a storage tank to the internal-combustion engine of a motor vehicle 失效
    将燃料从储罐泵送到机动车内燃机的设备

    公开(公告)号:US06152686A

    公开(公告)日:2000-11-28

    申请号:US983623

    申请日:1998-01-22

    摘要: The unit has a conveying pump embodied as a flow pump (10) with an impeller wheel (12) rotating in a pump chamber (24) and having respectively a crown of vanes (32) on both of its front faces which, together with grooves (38, 24) in the shape of a partial circle arranged in the front walls (26, 28) delimiting the pump chamber (24), respectively constitute a lateral conveying channel (44). The vanes (50) of the impeller wheel (12) are connected by an outer ring (36) on their radially outer ends. The outer ring (36) of the impeller wheel (12) also has a crown of vanes (50) which, together with the grooves in the shape of a partial circle arranged in the front walls (26, 28), respectively constitute an outer flow channel (58). Over a portion of their circumference the outer flow channels (58) are connected with the conveying channels (44) and, together with them, a pressure build-up in the direction of rotation (11) of the impeller wheel (12) approximately corresponding to the pressure build-up in the conveying channels (44) takes place, so that there is essentially no pressure difference between them, by means of which the entry of dirt into the area between the outer ring (36) of the impeller wheel (12) and the front walls (26, 28) is prevented.

    摘要翻译: PCT No.PCT / DE97 / 00272 Sec。 371日期:1998年1月22日 102(e)日期1998年1月22日PCT 1997年2月13日提交PCT公布。 公开号WO97 / 46809 日期1997年12月11日该单元具有实施为流量泵(10)的输送泵,其具有在泵室(24)中旋转的叶轮(12),并且在其两个前表面上分别具有叶片冠(32) 它们与布置在限定泵室(24)的前壁(26,28)中的部分圆形形状的凹槽(38,24)分别构成侧向输送通道(44)。 叶轮(12)的叶片(50)通过其径向外端上的外环(36)连接。 叶轮(12)的外环(36)还具有叶片冠部(50),其与布置在前壁(26,28)中的部分圆形形状的凹槽一起分别构成外 流通道(58)。 在其周边的一部分上,外部流动通道(58)与输送通道(44)连接,并与它们一起在叶轮(12)的旋转方向(11)上形成大致对应的压力 在输送通道(44)中形成压力,使得它们之间基本上没有压力差,借助于这些压力差,污物进入叶轮的外圈(36)之间的区域 12),并且防止前壁(26,28)。