Fuel feed apparatus
AssigneeDenso Corporation
InventorsKenichi Tomomatsu, Tadashi Hazama, Eiji Iwanari, Ryuji Igarashi, Katsuhisa Yamada
Life of this patent
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Abstract
A fuel feed apparatus is accommodated in a fuel tank. The fuel feed apparatus includes a sub-tank that is provided in a bottom of the fuel tank. The fuel feed apparatus further includes a fuel pump that is accommodated in the sub-tank. The fuel pump includes an impeller that defines a plurality of pump chambers. The fuel pump has a first suction passage through which fuel flows from outside the sub-tank into at least one of the plurality of pump chambers. The fuel feed apparatus further includes an elastic member that seals between the first suction passage and the sub-tank.
Claims16
A fuel feed apparatus accommodated in a fuel tank, the fuel feed apparatus comprising:
- a sub-tank that is provided in a bottom of the fuel tank;
- and
- a fuel pump that is accommodated in the sub-tank,
- wherein the fuel pump includes an impeller that defines a plurality of pump chambers,
- the fuel pump has a first suction passage through which fuel flows from outside the sub-tank into at least one of the plurality of pump chambers, and
- the fuel feed apparatus further comprising:
- an elastic member that seals between the first suction passage and the sub-tank,
- wherein the fuel pump further has a second suction passage through which fuel flows from the sub-tank into at least one of the plurality of pump chambers,
- the fuel feed apparatus further comprising:
- a two-stage filter through which fuel flows to the first suction passage and the second suction passage,
- wherein the two-stage filter is inserted into the sub-tank, and
- the elastic member seals between the two-stage filter and the sub-tank.
Dependencies are inferred from the claim text.