[0001] The present invention concerns a portable tank for storing and transporting diesel
fuel and AdBlue.
[0002] The increasingly stringent emission standards for combustion engines fitted in trucks,
passenger cars, agricultural machinery, industrial machinery and other vehicles force
engine manufacturers to use additional exhaust after-treatment systems. In diesel
engines, emissions of particulate matter and nitrogen oxides have been drastically
reduced.
[0003] In order to comply with the Stage IIIB (American Tier 4 Interim) standards for industrial
and agricultural machinery as well as Euro 5 for passenger cars and trucks, manufacturers
of machines fitted with diesel engines began to use a purified aqueous urea solution
made with 32.5% urea, known under the trade name AdBlue, in order to reduce emissions
of nitrogen oxides. Since 2014, after the introduction of new exhaust emission standards,
such as Stage IV (American Tier 4 Final) for industrial and agricultural machinery,
and Euro 6 for passenger cars and trucks, after further reducing emissions of nitrogen
oxides (by almost 8-fold) virtually all manufacturers of diesel engines (except very
small capacities) have been using exhaust after-treatment systems based on AdBlue.
This implies the necessity to provide diesel machine and vehicle users with additional
capacity for storing and transporting this product. Hence, of great importance are
containers that would make it possible to store and transport both diesel and AdBlue.
[0004] From the description of the patent application
WO2017175131, there is known a design of a tank designed to transport diesel fuel and an aqueous
solution of high-purity urea, generally known by the commercial name of AdBlue, characterised
in that it consists of two chambers where the first chamber is a container for diesel
while the second chamber is provided with a seat in which the second container for
AdBlue is inserted in a removable manner. The operation of the tank consists in that
the first chamber being the first container and the second container are separately
filled with diesel fuel and AdBlue, respectively, and then the second container is
inserted 'head down' into the seat of the second chamber of the tank. When the tank
reaches the destination, e.g. the place where a tractor is working, the user opens
the lid and by means of for example a pump fills a tank mounted on the tractor with
the content of the first container. Afterwards, the operator extracts the second container
(with AdBlue) from the seat in the chamber by pulling the handle, overturns it so
that the filling opening is at the top of the container and connects the pump to the
opening to fill the AdBlue tank with which the tractor is equipped.
[0005] Thus, in the tank for transporting diesel fuel and AdBlue according to this design
there is no option to fill or empty the second container without taking it out of
the tank.
[0006] The purpose of the solution according to the invention is to develop a tank that
makes it possible to store and transport both diesel fuel and AdBlue at the same time,
comprising two mutually attached containers that enable storing and transporting as
well as dispensing products contained therein.
[0007] A portable tank for storing and transporting diesel fuel and AdBlue whose inside
forms a container for direct storing and transporting diesel fuel and a container
for direct storing and transporting AdBlue and in the upper part of the tank there
is mounted a lid characterised in that the shell of the tank for direct storing and
transporting diesel fuel has on its outer surface a profiled recess in which there
is mounted a container for direct storing and transporting AdBlue, where each of the
containers comprises a separate inlet and filling installation situated in the upper
part of the respective container.
[0008] The inlet installation of the container for diesel fuel consists of an inlet cap
and a level sensor while the filling installation consists of a dispensing pump and
a connected thereto dispensing hose with a dispensing nozzle.
[0009] The inlet installation of the container for AdBlue consists of an inlet cap while
the filling installation is equipped with a dispensing hose with a dispensing nozzle,
and with a submersible pump.
[0010] It is preferable that in the coupling between the lid and the container there are
mounted safety locks in the form of gas springs or in the form of a magnet attached
to the tank shell and a metal plate attached to the lid.
[0011] The solution according to the invention facilitates storing and daily filling of
containers in vehicles and machines which need to be refilled with diesel fuel and
AdBlue.
[0012] An embodiment of the invention has been shown in the attached drawing in which Fig.
1 presents an axonometric view of the tank with the lid open; Fig. 2 presents a top
view of the tank with the lid open; Fig. 3 presents an axonometric cross-section along
the x-axis of the tank with the lid open (without the filling installation); Fig.
4 presents a cross-section along the y-axis of the tank with the lid open with the
security lock in the in the form of a magnet attached to the shell of the tank for
diesel fuel and a metal plate attached to the lid; Fig. 5 presents a magnified view
of the security lock in the form of a magnet attached to the shell of the tank for
diesel fuel and a metal plate attached to the lid.
[0013] The portable tank for storing and transporting diesel fuel and AdBlue consists of
a container 1 for storing and transporting diesel fuel whose shell has in its outer
part a profiled recess in which there is mounted in a permanent manner a container
2 for storing and transporting AdBlue where the whole is closed with a lid 3.
[0014] Each of the containers comprises a separate inlet and filling installation situated
in the upper part of the respective containers where container 1 is equipped with
a dispensing pump 4 and a connected thereto dispensing hose 5 with a dispensing nozzle
6 and container 2 is equipped with a dispensing hose 7 with a dispensing nozzle 8
and a submersible pump, not shown in the drawing. Furthermore, container 1 is equipped
with an inlet cap 9 and a level sensor 10 and container 2 is equipped with an inlet
cap 11.
[0015] In the coupling between the lid 3 and the container 1 there are mounted safety locks
preventing accidental opening of the lid 3; in the basic variant of the embodiment
of the tank these are gas springs 12 and in the other variant of the embodiment it
is a lock using magnetic field and comprising a magnet 13 attached to the lid of the
shell of the external container and a metal plate 14 attached to the lid 3.
1. A portable tank for storing and transporting diesel fuel and AdBlue whose inside forms
a container for direct storing and transporting diesel fuel and a container for direct
storing and transporting AdBlue and in the upper part of the tank there is mounted
a lid characterised in that the shell of the tank (1) for direct storing and transporting diesel fuel has on its outer surface a profiled
recess in which there is mounted a container (2) for direct storing and transporting AdBlue, where each of the containers comprises
a separate inlet and filling installation situated in the upper part of the respective
container, wherein the inlet installation of the container (1) for diesel fuel consists of an inlet cap (9) and a level sensor (10), while the filling installation consists of a dispensing pump (4) and a connected thereto dispensing hose (5) with a dispensing nozzle (6), whereas the inlet installation of the container (2) for AdBlue consists of an inlet cap (11) while the filling installation is equipped with a dispensing hose (7) with a dispensing nozzle (8), and with a submersible pump.
2. The portable tank according to claim 1 characterized in that in the coupling between the lid (3) and the container (1) there are mounted safety locks in the form of a magnet (13) attached to the tank shell (1) and a metal plate (14) attached to the lid (3).
REFERENCES CITED IN THE DESCRIPTION
This list of references cited by the applicant is for the reader's convenience only.
It does not form part of the European patent document. Even though great care has
been taken in compiling the references, errors or omissions cannot be excluded and
the EPO disclaims all liability in this regard.
Patent documents cited in the description