| 摘要 |
An improvement in automotive fuel pump assemblies (10) of the type including a tubular cylindrical housing (12), an electric motor in the housing and a pump (72,74) in the housing (12) driven by an armature (60) of the motor. The pump includes a first pump section body (104) adjacent a flux ring (20) of the motor, a second pump section body (102) between the first pump section body (104) and one end of the tubular housing (12), and an impeller (122) in a cavity (118) between the pump section bodies (102,104). The improvement resides in the provision of axially-extending grooves (146,148) in outer cylindrical surfaces (106,128) of the pump section bodies (102,104) which register in only a single predetermined angular positional relationship of the pump section bodies (102,104) and in the provision of spring clips (154) which fit in the registered grooves (146,148) to maintain the predetermined positional relationship and to hold the pump section bodies (102,104) assembled together for efficient handling prior to the insertion thereof in the tubular housing (12). |
