Divergent inlet for an automotive fuel pump

F - Mech Eng,Light,Heat,Weapons – 04 – D

Patent

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Details

F04D 17/16 (2006.01) F04D 5/00 (2006.01) F04D 29/42 (2006.01) F23N 1/00 (2006.01)

Patent

CA 2131272

- 10 - ABSTRACT A fuel pump has a pump cover with an inlet through which fuel from a fuel tank is drawn by an impeller to a pumping chamber formed by a pump bottom and the pump cover. The inlet has divergent sides oriented such that fuel being pumped is routed radially outward of primary vortices in a section of the pumping chamber adjacent the inlet to a section of the pumping chamber opposite the inlet. In a first embodiment, the upper side of the inlet is oriented at approximately a 10 to 12 degree angle from the lower side. In a second embodiment, the upper side is oriented at approximately a 127 degree angle from a line parallel the shaft rotation, and the lower side is oriented at approximately a 139 degree angle from the same line.

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Profile ID: LFCA-PAI-O-1522014

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