ONE-PIECE COMBINED PLASTIC UREA AND FUEL TANK WITH BAFFLES, ROTOMOULDED WITH A SPECIAL MOLD HEATING SYSTEM

Abstract

The present invention relates to a plastic tank which provides storing of gasoline and urea liquid called adblue, used in automotive industry, particularly in vehicles which operate with gasoline and which reduces the damage of vehicles, which operate with gasoline, to the environment, in a single tank with two chambers, and relates to a special core heating system designed for production of this tank by using rotation technology.

Claims

1. A combined fuel tank used particularly in vehicles with diesel motor using adblue (urea-based chemical substance) and made of polymer-based material by using rotation technology, comprising a first chamber; a second chamber positioned in the vicinity of said first chamber; a double-wall and sealed wall embodied between the first chamber and the second chamber; and at least one baffle positioned in at least one of the first chamber and the second chamber and which provides dampening of noise and vibration.

2. The combined fuel tank according to claim 1, wherein joining regions are embodied on said wall which are obtained by means of the kiss off method.

3. The combined fuel tank according to claim 2, wherein pluralities of joining regions are provided.

4. The combined fuel tank according to claim 1, wherein said baffle comprises at least one joining region obtained by the kiss off method when required in a compliant manner to the vibration requirement.

5. The combined fuel tank according to claim 1, wherein said baffle comprises pluralities of joining regions.

6. The combined fuel tank according to claim 1, wherein pluralities of baffles are provided which are compliant to the dimension of the first chamber and the second chamber wherein said baffles are positioned.

7. The combined fuel tank according to claim 1, wherein at least one passage gap is provided which is defined between at least one side surface of the fuel tank and the baffle and which allows movement of the liquid between two baffles.

8. The combined fuel tank according to claim 1, wherein the baffles have two walls and they have a form which combines at least two surfaces of the fuel tank.

9. The combined fuel tank according to claim 1, wherein the heat of the medium is carried to the inner surfaces of the core by means of usage of heat rods, and the wall thickness of all surfaces of the fuel tank obtained is equalized within the technology tolerance.

Description

BRIEF DESCRIPTION OF THE FIGURES

[0039] FIG. 1 is a representative view of the fuel tank.

[0040] FIG. 2 is the cross sectional view of the fuel tank.

[0041] FIG. 3 is another cross sectional view of the fuel tank.

REFERENCE NUMBERS

[0042] 10 Fuel tank [0043] 11 First chamber [0044] 12 Second chamber [0045] 13 Baffle [0046] 131 Passage gap [0047] 15 Compartment recess [0048] 16 Wall [0049] 17 Joining point [0050] X: intermediate distance

DETAILED DESCRIPTION OF THE INVENTION

[0051] In this detailed description, the subject matter rotomoulded fuel tank (10) is explained with references to examples without forming any restrictive effect only in order to make the subject more understandable.

[0052] With reference to FIG. 1, the fuel tank (10) having pluralities of compartments comprises a first chamber (11) and a second chamber (12). Said first chamber (11) and said second chamber (12) have a hollow rectangular prism-like form. A double wall (16), which prevents sealing, is embodied between said first chamber (11) and said second chamber (12). Between the first chamber (11) and the second chamber (12), there is a compartment recess (15) embodied in recess form from outside at least along the two mutual surfaces and where said wall (16) extends between these two mutual recesses.

[0053] The baffle (13) and the wall (16) embodied on the fuel tank (10) are provided by means of cores which are compliant with the rotation technology and which are used in the art. By means of at least one heat pipe placed in a snap-fit manner onto the cores, the baffle (13) and the wall (16) can be obtained which remain at the inner sections of the fuel tank (10). The heat pipes can receive heat by means of convection formed in the inner ambiance of the furnace or by means of radiation received from the heat supply and moreover, the heat pipes can receive heat by means of electrical heaters placed as the component part thereof.

[0054] In an embodiment of the invention, in order to reduce the harmful effect of vibrations, at least one joining point (17) is defined at the contact points, also named as kiss off in rotation technology, between the double wall (16) and the baffles (13). In the preferred application, there are pluralities of said joining points (17). The wall (16) compartment recesses (15) are connected through the joining points (17) and thus, they function as a one-piece sealed barrier between the first chamber (11) and the second chamber (12).

[0055] In order to dampen acceleration and noise problems, the double-wall baffles (13), placed to the required locations of the one-piece combined plastic fuel tank (10), are connected to at least one surface of the first chamber (11) and the second chamber (12), and said double-wall baffles (13) comprise gaps in a manner defining a liquid passage gap (131) between at least one surface of the first chamber (11) and the second chamber (12).

[0056] Preferably, the baffles (13) are connected to at least two each mutual surfaces of the first chamber (11) and the second chamber (12), wherein the baffles (13) are provided, in order to increase resistance against vibration. By means of said passage gap (131), the movement and the dispersion of the liquid between baffles (13) are provided and thus, fuel suctioning by the suctioning pump of the tank is always provided.

[0057] The determination of whether which baffle (13) and/or which intermediate wall (16) will comprise joining point (17) is realized according to the result of the static and dynamic analysis which will be realized according to vibration reducing, noise dampening and storage volume geometry.

[0058] When the joining points (17) are examined from outside after shaping, it is observed that they are in the form of pluralities of grooves embodied at predetermined intermediate distances (x) between each other. Between the grooves, polymer material is filled.

[0059] At the same time, this embodiment, which provides sealing between the first chamber (11) and the second chamber (12), provides dampening of the vibration, tension and noise formed in the first chamber (11), in the second chamber (12) and in the baffles (13).

[0060] Thanks to the invention whose detailed description is given above, particularly the need for usage of two separate tanks for the fuel tank (10) and for the adblue tank particularly in motorized vehicles, which operate with diesel, can be prevented. Thus, there will be no need to use separate chassis connection and belt system for the first chamber (11) and for the second chamber (12). Besides, space saving and weight saving can also be provided in vehicles. These savings reduce carbon footprint, reduce environmental pollution, moreover they provide fuel saving.

[0061] The protection scope of the present invention is set forth in the annexed claims and cannot be restricted to the illustrative disclosures given above, under the detailed description. It is because a person skilled in the relevant art can obviously produce similar embodiments under the light of the foregoing disclosures, without departing from the main principles of the present invention.