US 11,752,858 B2
Fuel filter device
Hiroshi Sasaki, Kanagawa (JP); Shokei Yamada, Kanagawa (JP); and Shohei Matsuda, Kanagawa (JP)
Assigned to NIFCO INC., Kanagawa (JP)
Appl. No. 17/283,035
Filed by NIFCO INC., Kanagawa (JP)
PCT Filed Oct. 1, 2019, PCT No. PCT/JP2019/038813
§ 371(c)(1), (2) Date Apr. 6, 2021,
PCT Pub. No. WO2020/075581, PCT Pub. Date Apr. 16, 2020.
Claims priority of application No. 2018-192283 (JP), filed on Oct. 11, 2018.
Prior Publication US 2021/0347250 A1, Nov. 11, 2021
Int. Cl. B01D 29/13 (2006.01); B60K 15/04 (2006.01); B01D 35/027 (2006.01); B01D 35/26 (2006.01); F02M 37/50 (2019.01); B60K 15/03 (2006.01)
CPC B60K 15/04 (2013.01) [B01D 29/13 (2013.01); B01D 35/027 (2013.01); B01D 35/26 (2013.01); B01D 2201/204 (2013.01); B01D 2201/347 (2013.01); B01D 2201/4076 (2013.01); B60K 2015/03236 (2013.01); F02M 37/50 (2019.01)] 5 Claims
OG exemplary drawing
 
1. A fuel filter device configured to be fitted to a fuel inlet positioned in a fuel tank, comprising:
a filter cloth formed in a bag-shape;
a first member positioned inside the filter cloth, the first member including an inner flange portion positioned inside the filter cloth; and
a second member connected to a member provided on a side of a fuel pump, the second member including an outer flange portion positioned outside the filter cloth,
wherein a periphery of an opening of the filter cloth is clamped between the inner flange portion and the outer flange portion, the inner flange portion and the outer flange portion jointly defining a communication passage communicating inside of the filter cloth with outside of the filter cloth, and at least one of the inner flange portion and the outer flange portion is provided with a sealing rib to compress the filter cloth to ensure a sealing performance thereof, a welding rib to join the inner flange portion and the outer flange portion with each other by welding, and a shifting preventing structure configured to restrict shifting of the filter cloth,
wherein the shifting preventing structure is provided between the sealing rib and the welding rib, the sealing rib being provided outside of the welding rib,
wherein the shifting preventing structure includes a plurality of shifting preventing ribs extending radially.