| US 7,546,833 B2 | ||
| Fuel feed apparatus | ||
| Kenichi Tomomatsu, Kariya (Japan); Tadashi Hazama, Chita-gun (Japan); Eiji Iwanari, Chiryu (Japan); Ryuji Igarashi, Nagoya (Japan); and Katsuhisa Yamada, Okazaki (Japan) | ||
| Assigned to DENSO CORPORATION, Kariya (Japan) | ||
| Filed on Jan. 16, 2007, as Appl. No. 11/653,372. | ||
| Claims priority of application No. 2006-049294 (JP), filed on Feb. 24, 2006; and application No. 2006-189745 (JP), filed on Jul. 10, 2006. | ||
| Prior Publication US 2007/0199546 A1, Aug. 30, 2007 | ||
| Int. Cl. F02M 37/04 (2006.01) | ||
| U.S. Cl. 123—509 | 16 Claims |
| 1. 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.
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