Unlock instant, AI-driven research and patent intelligence for your innovation.

Fuel tank

a technology for fuel tanks and tanks, applied in the field of fuel tanks, can solve problems such as engine stalls and stop running, and achieve the effect of reducing the risk of operation interruption

Inactive Publication Date: 2008-02-14
VOLVO LASTVAGNAR AB
View PDF17 Cites 31 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004] A primary purpose or objective of the present invention is to provide a fuel tank in which the above-described disadvantage(s) are reduced. This purpose is obtained at least in part by way of the invention's arrangement in which fuel is retained where the fuel outlet (member) is positioned so that the influence of a shifting fuel level is reduced, especially when the vehicle is oriented at an angle (with respect to horizontal) and therefore the risk of operational interruption is reduced.

Problems solved by technology

When a vehicle is oriented at a slope and the fuel level is low, it is still possible to end up with the fuel level being below the opening of the fuel outlet pipe, with the consequence being that the engine stalls because of lack of fuel and stops running.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Fuel tank
  • Fuel tank
  • Fuel tank

Examples

Experimental program
Comparison scheme
Effect test

first embodiment

[0013] With reference first to FIGS. 1, 2 and 3 which show the invention, it will become evident that the fuel tank comprises (includes, but is not necessarily limited to) a tank housing 1 which encapsulates a space 2 for fuel 3 in liquid form. The fuel tank is configured into sections that are exemplarily partitioned into a number of sections by means of one or more intermediate (partitioning) walls 4, 5. As exemplarily shown, the walls 4, 5 extend across the fuel tank at a straight angle to the longitudinal direction of the fuel tank and as indicated by the arrow 6 which usually corresponds to the driving direction of the vehicle. The partitioning walls 4, 5 divide (partition) the fuel tank into sections (a plurality of sections) or fuel chambers 7, 8, 9 which in the example are shown to number three. The tank housing 1 is outwardly delimited by casing walls, in the first example an upper wall 35, a lower wall 36 (the bottom) and side walls 37, 38 and two gable walls 39,40. In eac...

second embodiment

[0025] Another advantage with the second embodiment is that a very limited filling of an empty tank will give a better degree of utilization of the volume available since the clack valves 131, 132, when filling in the horizontal position, are kept closed and through flow does not take place until the fuel level reaches the most large overflow opening 112.

[0026] It should be appreciated that invention is not limited to that which is described above and shown in the drawings, but can be varied in different ways and still be within the scope of the patented claims.

[0027] For example, a number of intermediate walls can be present, or just one single partition can be implemented that divides the fuel area into two fuel chambers. For example, there can be one, two, three or even more partitioning walls. The filling member can in principle be positioned in any of the fuel chambers, for instance, w either of the outer chambers. In a tank with three partitioning walls, four chambers are obt...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

Fuel tank for a motor vehicle having a tank housing (1) that encapsulates a fuel space (2) divided by means of a number of lateral stiffening partitioning wall (4, 5) into fuel chambers (8, 9). These communicate with each other via openings (10-15) in the partitioning walls. The tank exhibits an outlet member (116) with a chosen position in one of the fuel chambers where the opening is delimited all around by means of an opening edge (26) which is arranged within the partitioning wall with a distance to the bottom of the tank. In one or more of the openings between the fuel chambers, a back valve (22) is arranged. By means of the clack valve, flow is permitted to the fuel chamber (7) with the outlet member (16), but in the opposite direction the flow is completely or partially prevented by means of which, in case of a sloping of the tank in its longitudinal direction, fuel is retained in the fuel chamber in which the outlet member is positioned.

Description

CROSS-REFERENCE TO RELATED APPLICATIONS [0001] The present application is a continuation patent application of International Application No. PCT / SE03 / 01205 filed 14 Jul. 2003 which was published in English pursuant to Article 21(2) of the Patent Cooperation Treaty, and which claims priority to Swedish Application No. 0202268-9 filed 19 Jul. 2002. Said applications are expressly incorporated herein by reference in their entireties.FIELD OF THE INVENTION [0002] The present invention relates to a fuel tanks; and more particularly to fuel tanks for vehicles. BACKGROUND OF THE INVENTION [0003] Fuel tanks, such as those used in vehicles, are usually partitioned into sections with intermediate walls in order to prevent the fuel from sloshing around in the tank when driving (accelerating and turning) about and braking due to the risk that the fuel's relative position (level) within the tank can change so much that it falls below the opening of the outlet pipe. When a vehicle is oriented at ...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
IPC IPC(8): B65D25/04B60K15/03B60K15/077
CPCB60K15/03B60K15/03177B60K2015/0775B60K2015/03144B60K2015/0344B60K15/077
Inventor OHLSSON, ROLFSONDEREGGER, SIGUND
Owner VOLVO LASTVAGNAR AB