Fuel supply device
AssigneeDenso Corporation
InventorsYuto Sato, Yuuji Hirata, Tsuyoshi Arai, Yukimasa Fukaya, Toshihiko Muramatsu
Life of this patent
Estimating the term…
Abstract
A fuel supply device includes a flange, a pump unit, a supporting pillar, and a boss. The flange is attached to an opening portion of a fuel tank. The supporting pillar supports a sub tank such that the sub tank is positioned closer to and away from the flange. The boss is fixed at the flange and an end of the supporting pillar is inserted into the boss. The boss is made of a material different from that of the flange. The boss includes a stress concentration portion that is preferentially broken when a force equal to or greater than a predetermined value is applied to an end portion of the supporting pillar in an axis perpendicular direction.
Claims12
A fuel supply device comprising:
- a flange attached to an opening portion of a fuel tank;
- a pump unit disposed in the fuel tank and configured to discharge a fuel out of the fuel tank;
- a supporting pillar connecting the flange to the pump unit;
- and
- a boss fixed to the flange, one end of the supporting pillar being inserted into the boss, wherein
- a direction perpendicular to an axial direction of the supporting pillar is defined as an axis perpendicular direction,
- the boss is made of a material different from that of the flange, and
- the boss includes a stress concentration portion configured to be preferentially broken when a force having a predetermined value or more is applied to the other end of the supporting pillar.
A fuel supply device comprising:
- a flange attached to an opening portion of a fuel tank;
- a pump unit disposed in the fuel tank and configured to discharge a fuel out of the fuel tank;
- a supporting pillar connecting the flange to the pump unit;
- and
- a boss fixed to the flange, one end of the supporting pillar being inserted into the boss, wherein
- a direction perpendicular to an axial direction of the supporting pillar is defined as an axis perpendicular direction,
- the boss is formed as a different member from the flange, and
- the boss includes a stress concentration portion configured to be preferentially broken when a force having a predetermined value or more is applied to the other end of the supporting pillar.
Dependencies are inferred from the claim text.