Aisan Kogyo Kabushiki Kaisha

Toshihide Oku

Tetsuya Hara

Nobuo Suzuki

Yoshinobu Kato

A suction filter may comprise a bag-shaped filter member and a passage member. The passage member is disposed in an internal space of the filter member. The passage member has a fuel passage and a plurality of openings, and guides fuel from the internal space to the outside of the internal space. The openings communicate the internal space of the filter member to the fuel passage. When the passage member is cut along a surface thereof perpendicular to a longitudinal direction of the passage member in each of the openings, a position on an outer circumferential surface of the passage member in the cut surface, in which the distance between the outer circumferential surface and the filter member is the smallest, is distant in a circumferential direction from a position on the outer circumferential surface where the opening is formed.

Suction filter and fuel supply device

A suction filter may comprise a filtration member and a connection member. The filtration member has an inner space. The connection member is configured to communicate the inner space of the filtration member and a fuel intake port of a fuel pump. The filtration member may have a tubular shape so that the filtration member surrounds a circumference of the fuel pump when the suction filter is connected to the fuel intake port of the fuel pump.

In order to provide a simply-structured fuel filter which permits soaking at least part of a filter unit all the time in fuel in a reservoir, a reservoir unit is configured of a resin-built cylindrical reservoir having a bottom arranged on the bottom of a fuel tank, a primary filter installed near the inner bottom of that reservoir and a fuel pump sucking fuel in the reservoir through the primary filter, wherein projections protruding upward from the inner bottom of the reservoir are integrally molded and engaging holes to engage with those projections are bored in the circumference of the primary filter.

Growing community of inventors

Suzuka, Japan

Toshihide Oku