公开(公告)号：US07874818B2

公开(公告)日：2011-01-25

申请号：US10974202

申请日：2004-10-27

申请人： Wade A. Gottschalk ,  Peter P. Kuperus

发明人： Wade A. Gottschalk ,  Peter P. Kuperus

IPC分类号： F04B35/04 ,  H02K13/00

CPC分类号： F04B53/22

摘要： An electric motor and fuel pump assembly with a housing having generally opposed ends with an electric motor within the housing having an armature with an axial commutator adjacent one end of the armature and one end of the housing. A fuel pump is positioned adjacent another end of the housing and the armature and is operably connected to the armature for being driven by the electric motor. A carrier within the housing has guides slidably receiving axially elongate brushes disposed generally parallel to the armature axis with ends contacting the commutator. Each brush is biased generally axially into contact with the commutator by a torsional spring with a coiled body having an axis generally transverse to the axis of the armature to decrease the overall axial length of the pump assembly. Preferably an end cover of the housing overlies and encloses the springs and brushes and preferably has an outlet port laterally offset from the brushes and within the outer periphery of the end cover to further decrease the overall axial length of the fuel pump assembly. Preferably electrical connector blades extend through the end cover and are laterally offset from and axially overlap in electrical connection with the brushes for supplying current to the motor.

摘要翻译： 一种具有壳体的电动马达和燃料泵组件，其具有大致相对的端部，在壳体内具有电动机，其具有衔铁，该衔铁具有邻近衔铁的一端和壳体的一端的轴向换向器。 燃料泵位于壳体和电枢的另一端附近并且可操作地连接到电枢以由电动机驱动。 壳体内的载体具有可滑动地接收轴向细长的刷子的引导件，其大致平行于电枢轴线设置，端部接触换向器。 每个刷子通常被轴向偏压以通过扭转弹簧与扭转弹簧相接触，所述扭转弹簧的螺旋体具有大致横向于电枢轴线的轴线，以减小泵组件的整个轴向长度。 优选地，壳体的端盖覆盖并包围弹簧和刷子，并且优选地具有横向偏离电刷并且在端盖的外周边内侧的出口端口，以进一步减小燃料泵组件的整体轴向长度。 优选地，电连接器叶片延伸穿过端盖并且与用于将电流供应到电动机的电刷电连接并横向偏移并且轴向重叠。