Take fuel pump of low pressure spread groove

The utility model discloses a take fuel pump of low pressure spread groove, including motor, the pump body, shell, motor, the pump body are installed in the fuel pump shell, the pump body is including consecutive play oiled -plate method, pump leaf, oil feed board and oil feed lid, its characterized in that: be equipped with C type oil groove on the terminal surface of oil feed board and pump leaf contact, and the one end bore of C type oil groove is greater than other end bore, the heavy -calibre port is the oil feed low -pressure area, and small -bore port is the high nip that produces oil, be equipped with the spread groove of intercommunication low -pressure area and high nip between the mouth of C type oil groove both ends. The utility model discloses adding a strip spread groove at oil feed plate height nip and low -pressure area, utilizing the strong relation with the velocity of flow of fluid pressure, make high -pressure oil pump convert low pressure oil pump into, improve the low pressure oil pump efficiency of tradition, the despin mechanism reduces mechanical wear, increase spare part commonality.