Electric fuel pump assembly structure

• Main Authors: WAN HUICHANG, WU JIANZHONG, YANG YUN, FAN HUOSHENG, WU BINBIN, LIU HOUSHI, LEI XIN, LEI QING, WU SIWEN, YANG LIPING, WU XIAO
• Format: Patent
• Language: Chinese; English
• Published: 05.06.2020
• Subjects: BLASTING; COMBUSTION ENGINES; HEATING; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS; LIGHTING; MECHANICAL ENGINEERING; SUPPLYING COMBUSTION ENGINES IN GENERAL, WITH COMBUSTIBLEMIXTURES OR CONSTITUENTS THEREOF; WEAPONS

The utility model relates to the technical field of fuel pumps. The utility model discloses an electric fuel pump assembly structure. The fuel pump comprises a fuel storage box, a fuel pump body and aflange cover, the fuel pump body is connected with the fuel outlet connector through a fuel inlet pipe. The oil return joint is connected with the ejection nozzle at the bottom of the oil storage boxthrough an oil return pipe; an automatic pressure regulator is arranged at the upper end of the interior of the oil storage box and comprises a pressure regulator shell, a first connector and a second connector are arranged at the upper end of the pressure regulator shell, the upper end of the first pressure regulating cavity is communicated with the lower end of the second pressure regulating cavity, and a pressure limiting valve is arranged in the first pressure regulating cavity; an overflow base is arranged on the side face of the pressure regulator shell, an end cover is arranged at theouter end of the overflow b