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Reservoir Baffle Arrangement for a Vehicle Fuel Tank

a vehicle fuel tank and baffle technology, which is applied in the direction of transportation and packaging, transportation items, packaging, etc., can solve the problems of vehicle weight unnecessarily including the weight of residual fuel volume, the upper portion of the tank volume is lost, and the range of the vehicle is less than

Inactive Publication Date: 2011-01-06
VOLVO TRUCKS NORTH AMERICA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

"The invention is a device that allows a vehicle to use more of the residual fuel in its fuel tank, which is currently wasted. The device includes a baffle arrangement with two walls that are positioned vertically in the tank. The baffle arrangement creates a central reservoir and allows for more fuel to be used. The device can be used in cylindrical fuel tanks used in heavy duty trucks. The technical effect of the invention is to allow for more efficient use of fuel in the vehicle's fuel tank, reducing weight and improving range."

Problems solved by technology

Because of the placement and length of the fuel filler neck, an upper portion of the tank volume is lost.
A disadvantage is that for a given fuel tank the range of the vehicle is less than it would be if more of the residual fuel volume could be used.
Another disadvantage is that the vehicle weight may unnecessarily include the weight of the residual fuel volume and the added weight of the larger fuel tank.

Method used

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  • Reservoir Baffle Arrangement for a Vehicle Fuel Tank
  • Reservoir Baffle Arrangement for a Vehicle Fuel Tank
  • Reservoir Baffle Arrangement for a Vehicle Fuel Tank

Examples

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Embodiment Construction

[0015]FIG. 1 shows a perspective view of a baffle arrangement 5 for a fuel tank in accordance with the invention and FIG. 2 is a top view of the baffle arrangement of FIG. 1. The arrangement 5 includes a first wall 10 and a second wall 20 that are positioned vertically with respect to a floor or bottom 30. The first wall 10 is formed as a spiral of about 270° turning in a first direction from an outer edge 12 to an inner edge 14. The second wall 20 is formed also formed as a spiral of about 270°, but turning in a second direction opposite the first direction from an outer edge 22 to an inner edge 24.

[0016]The first wall 10 and second wall 20 are positioned in a nested arrangement with the respective inner ends 14, 24 in opposed spaced relation to define a central reservoir 40. The respective outer ends 12, 22 are spaced from the other wall portion to form inlets 50, 52 on opposite sides of the baffle arrangement 5. The respective walls 10, 20 between the inner ends and outer ends de...

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PUM

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Abstract

A baffle arrangement for a vehicle fuel tank includes first and second wall portions, each having an inner end and an outer end and formed as a spiral of about 270 degrees. The first wall portion and second wall portion are positioned with the respective inner ends in opposed spaced relation to define a central reservoir, and with the respective outer ends spaced from the other wall portion to form inlets on opposite sides, the portions between the inner ends and outer ends defining passageways to the central reservoir.

Description

FIELD OF THE INVENTION[0001]The invention relates to vehicle fuel tanks, and more specifically, to a reservoir baffle arrangement for a vehicle fuel tank that allows use of more of the fuel tank volume. The invention has advantageous use in cylindrical fuel tanks as are used in heavy duty trucks.BACKGROUND AND SUMMARY[0002]Diesel powered trucks use externally mounted fuel tanks that are typically cylindrical in shape and mounted longitudinally on the truck frame. Because of the placement and length of the fuel filler neck, an upper portion of the tank volume is lost. In addition, depending on mounting of the draw tube, the orientation of the tube and the location of the tube mouth, a residual amount of fuel must remain in the tank to cover the draw tube mouth, so that the fuel pump can deliver fuel under all conditions. The residual amount of fuel in the bottom of the tank must accommodate tilting of the tank when the vehicle climbs or descends a grade.[0003]Thus, the useful volume ...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D88/12
CPCB60K2015/0344B60K15/077
Inventor HAWKS, JOHNATHAN N.
Owner VOLVO TRUCKS NORTH AMERICA