Tank with inverted sump

A work vehicle having a chassis supported by ground-engaging wheels or tracks, the work vehicle comprising:

• a fuel tank including:
• a bottom wall extending in a lateral orientation spaced from the chassis;
• upright peripheral walls at least in part surrounding the bottom wall and at least in part defining a tank volume;
• an inverted sump extending up from the bottom wall within the tank volume, the sump defined by at least three upright sump walls, at least one sump wall being spaced from at least one peripheral wall to define a flow passage extending from an area of the tank volume outside the sump to within the sump, wherein the sump walls include a first sump wall extending into the tank volume at a first height and a second sump wall extending from the first sump wall at least in part at a second height that is less than the first height;
• an inclined wall extending from the bottom wall;
• and
• a spanner wall extending between at least one sump wall and the inclined wall.

A fuel tank for a work vehicle having a chassis supported by ground-engaging wheels or tracks, the fuel tank comprising:

• a bottom wall extending in a lateral orientation spaced from the chassis;
• upright peripheral walls at least in part surrounding the bottom wall and at least in part defining a tank volume;
• and
• an inverted sump extending up from the bottom wall within the tank volume, the sump defined by upright sump walls including:
• a first sump wall extending from one peripheral wall into the tank volume at a first height;
• a second sump wall extending from the first sump wall spaced from the peripheral walls, the second sump wall at least in part having a second height lesser than the first height;
• a third sump wall extending from the second sump wall spaced from the first sump wall, the third sump wall having a third height equal to the second height;
• and
• a fourth sump wall extending from the third sump wall spaced from the second sump wall, the fourth sump wall at least in part having a fourth height less than the third height;
• wherein the fourth sump wall is spaced from the first sump wall and the peripheral wall from which the first sump wall extends, and wherein a flow passage is defined by the spacing between the fourth sump wall, the first sump wall and the peripheral wall from which the first sump wall extends.