公开(公告)号：US10648436B2

公开(公告)日：2020-05-12

申请号：US16076819

申请日：2017-02-24

Applicant: DENSO CORPORATION

Inventor： Rui Adachi ,  Tadashi Hazama ,  Norihiro Hayashi ,  Takashi Akiba ,  Shingo Fukuoka

IPC: F02M55/02 ,  F02M37/10 ,  F02M37/00 ,  F02M63/02 ,  F02D33/00 ,  F02D41/30

Abstract: A fuel supply device configured to supply fuel from an inside of a fuel tank to an internal combustion engine includes: a cover body that is installed to an upper wall of the fuel tank; a pump unit that is placed on a bottom wall of the fuel tank and is configured to discharge the fuel from the inside of the fuel tank toward the internal combustion engine; and a coupling stay that couples between the cover body and the pump unit. The coupling stay includes: an upper stay that extends on a lower side of the cover body; and a lower stay that is installed to the pump unit and is slidably fitted to the upper stay in a top-to-bottom direction. A stress concentrating portion, which reduces a section modulus to concentrate a stress around the stress concentrating portion, is formed at a specific location of the lower stay.

公开(公告)号：US11111890B2

公开(公告)日：2021-09-07

申请号：US16096783

申请日：2017-03-30

Applicant: DENSO CORPORATION

Inventor： Takashi Akiba ,  Rui Adachi ,  Norihiro Hayashi

IPC: F02M37/10 ,  F02M37/00

Abstract: A fuel supply device includes a surface level detection device that detects a surface level of fuel through use of a float. A supply main body is placed in a fuel tank through an insertion opening and supplies the fuel to an outside. A surface level detection unit, which includes the float, is rotatable relative to the supply main body, and a rotational range of the surface level detection unit is set to include at least an inserting direction of the supply main body. A distal end part of the surface level detection unit, which is furthermost from an imaginary rotational center axis in the surface level detection unit, is placed on an upper side of an imaginary plane, which includes the imaginary rotational center axis and a center of gravity of the surface level detection unit, in a rotational direction of the surface level detection unit.