| 摘要 |
A regenerative type electric motor fuel pump has a vapor vent passage disposed outside of a fuel pumping channel and communicating the fuel pumping channel with the exterior of the fuel pump to vent fuel vapor from the fuel pumping channel. The vapor vent passage extends through one of a pair of end plates between which a pump impeller is received for rotation. Preferably, the vapor vent passage communicates with the fuel-pumping channel through a connecting slot in the end plate.
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