FORM 2
THE PATENTS ACT 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See Section 10; rule 13)
TITLE OF THE INVENTION
A Mounting Structure Assembly for Storage Tank in Vehicles
APPLICANTS
TATA MOTORS LIMITED, an Indian company
Having its registered office at Bombay House,
24 Homi Mody Street, Hutatma Chowk,
Mumbai 400 001 Maharashtra, India
INVENTORS
Mukesh Kr. Jha, Sachin H. Kadu
and Vivek Dwivedi
all are Indian Nationals
Of TATA MOTORS LIMITED,
An Indian company having its registered office
At Bombay House, 24 Homi Mody Street, Hutatma Chowk,
Mumbai 400 001 Maharashtra, India
PREAMBLE TO THE DESCRIPTION
The following specification particularly describes the invention and the manner in which it is to be performed.

FIELD OF INVENTION
The present Invention is related to exhaust after teatment emission control system and more particularly it relates to the adblue solution storage tank and mounting structure assembly for a storage tank used for exhaust after teatment emission control system in vehicles and method of mounting thereof.
BACK GROUND OF THE INVENTION
Generally the internal combution engine of vehicles emits the nitrous oxide (Nox) and particulate materials (PM) are the main unburned particles of combustion process in said internal combution engine. The said nitrous oxide and particulate materials creates adverse impact on earth's Natural environment.
Said NOx reacts with volatile organic compounds in presence of sunlight and form photochemical smog. Also mono-nitrogen oxides eventually form nitric acid which is a component of acid rain.
One of the known methods of reducing the emission of nitrou oxide (Nox) and particulate materials (PM) is to use a Selective Catalyst Reduction (SCR) process, wherein urea or adblue solution used in reaction. The said urea or adblue solution is injected in the reaction chamber of exhaust system where the said urea or adblue solution reacts with said nitrous oxide (Nox) and the nitrogen and water is produced.
In order to continuously carry the process of Selective Catalyst Reduction, Adblue solution must be stored and available continously in a storage tank which supplies the said solution in the reaction chamber of said exhaust system to reduce the emission.
The conventional storage tank assembly has limitation such packaging constraints due to less space availble in exhaust area. The present storage tank assembly is generally open or exposed to environment such as rain, dust and also at risk of

theft. The conventional system cannot be used as single unit for mounting the storage tank.
The conventional system also suffers the limitation of accessibilty to the storage tank and its assembly for maintainance and repairs.
The present invention is developed for providing a mounting structure assembly for storage tank which store urea solutionused in SCR system to reduce or control the NOx (Nitrogen oxide and Nitrogen dioxide) coming out as unburned fuels from the engine of vehicles.
OBJECTIVE OF INVENTION
The main objective of this invention is to provide a mounting structure assembly for storage tank and mountng system thereof.
Yet another object of the present invention is to to provide a mounting structure assembly for storage tank having a profile to accommodate auxiliary parts provided in a minimum packaging space for less movement said urea solution.
Yet another object of the present invention is to to provide a a mounting structure assembly for storage tank wherein said mounting structure assembly can accommodate the varying sizes of tanks for vehicles.
Yet another object of the present invention is to to provide a mounting structure assembly for storage tank having supporting arrangement for mounting and can be easily mounted on the vehicle as a single unit.
Yet another object of the present invention is to to provide a mounting structure assembly for storage tank which is sealed to to protect from environment and theft.

STATEMENT OF INVENTION
A mounting structure assembly for storage tank in vehicles comprises; a pair of L-shape plate members (16), a pair of reinforcement members (17) of L-shape are mounted on the long member of vehicle, said plate members (16) are having a tubular member (18) provided for supporting the said storage tank from both the sides, said each tubular members (18) having a side shield member (19) provided to cover the said storage tank from both the sides, a pair of doser unit mounting member (20) are provided for mounting two different types of engine configurations, a base plate (21) provided at bottom of structure for supporting the said storage tank from bottom, a back support member (22) provided to support the said storage tank from back side, said back support member (22) is having a screwing location for providing a strap assembly (23) for locating and clamping the said storage tank assembly with the strap rubber, a rubber washer (24) provided between said tubular member (18) and storage tank,the complete storage tank assembly is mounted on mounting structure assembly which is securely mounted on the long member of vehicle.
The assembly, in accordance with the present invention, wherein said tubular member (18) is a square cross section having screwing surface for mounting the said the storage tank.said side shields (19) is corrugated and said base plate (21) is mounted at bottom of said tubular member (18).
The assembly , in accordance with the present invention, wherein said back support member (22) is provided with screwing locations for mounting said strap assembly (23) provided for locating and clamping the said storage tank with said strap assembly.
The assembly, in accordance with the present invention, wherein said storage tank (1) is having a space or profile adopted for maximum space utilization, said storage tank is made of plastic with the help of blow moldings or rotational molding process.

The assembly, in accordance with the present invention, wherein storage tank is having metalic inserts (4, 5, 11) molded during molding of said storage tank, said inserts are provided for mounting the storage tank on the assembly structure.
The assembly , in accordance with the present invention, wherein storage tank (1) having bayonet sender unit (2) with adblue level sensor (3) molded during molding of said storage tank.
The assembly, in accordance with the present invention, wherein said storage tank (1) is having a draining system comprising a metallic insert (5), gasket (7) and a hex screw (6), said metallic insert (5) is molded during molding of said storage tank (!)•
The assembly , in accordance with the present invention, wherein said storage tank (1) having an inlet system comprising an adaptor (8), seal (9) and a gasket (10) for filling the adblue solution,the profile of said adaptor (8) is matching with the filling gun.
The assembly, in accordance with the present invention, wherein said inlet system comprises a locking cap (15) with an end fitting cup (14) and fiat seal (12) mounted on the said storage tank, said inlet system and locking system forming a single unit is securely mounted on said storage tank with the help of a metallic insert and screw (11).
BRIEF DESCRIPTION OF INVENTION
In accordance with the present invention, a mounting structure assembly for storage tank in vehicles, wherein said comprises; a pair of L-shape plate members (16), a pair of reinforcement members (17) of L-shape are mounted on the long member of vehicle, said plate members (16) are having a tubular member (18) provided for supporting the said storage tank from both the sides, said each tubular members (18) having a side shield member (19) provided to cover the said storage

tank from both the sides, a pair of doser unit mounting member (20) are provided for mounting doser unit, a base plate (21) provided at bottom of structure for supporting the said storage tank from bottom, a back support member (22) provided to support the said storage tank from back side, said back support member (22) is having a screwing location for providing a strap assembly (23) for locating and clamping the said storage tank assembly with the strap rubber, a rubber washer (24) provided on said tubular member (18).The complete storage tank assembly mounted on mounting structure assembly (25) is securely mounted on the long member (26) near to exhaust system(27) of vehicle.
DETAILED DESCRIPTION OF THE INVENTION
Referring now the images and drawings are for the purpose of illustrating a preferred embodiment of the current invention in detail.
Figure-01 shows the exploded views of the complete mounting structure.
Figure-02 shows shows the isometric views of the mounting structure.
Figure-03 shows the exploded view of the storage tank assemblies.
Figure-04 shows the assembled isometric views of the mounting structure and the
storage tank.
Figure-05 shows the mounting arrangement of doser unit mounted on doser unit
mounting member.
Figure-06 shows pair of doser unit mounting member.
Figure-07 shows the complete assembly mounted on long member near to exhaust
system of vehicle.
Now referring with the figures 1 to 12, In accordance with this invention, said mounting structure assembly for vehicles comprises; a pair of L-shape plate members (16), a pair of reinforcement members (17) of L-shape are mounted on the long member of vehicle, said plate members (16) are having a tubular member (18) provided for supporting the said storage tank from both the sides, said each tubular members (18) having a side shield member (19) provided to cover the said

storage tank from both the sides, a pair of doser unit mounting member (20) are provided for mounting doser unit, a base plate (21) provided at bottom of structure for supporting the said storage tank from bottom, a back support member (22) provided to support the said storage tank from back side, said back support member (22) is having a screwing location for providing a strap assembly (23) for locating and clamping the said storage tank assembly with the strap rubber, a rubber washer (24) provided on said tubular member (18).The complete storage tank assembly is mounted on mounting structure assembly (25) which is securely mounted on the long member (26) near to the exhaust system (27) of vehicle.
Said tubular member (18) is a having a square cross section. The said tubular member having the screwing surface for mounting the said the storage tank. Said side shields (19) is corrugated. Said base plate (21) is mounted at bottom of said tubular member (18).
The said back support member (22) is configured to support the tank from back side. The said back support member (22) is provided with screwing locations for mounting said strap assembly (23) provided for locating and clamping the said storage tank assembly with the strap rubber supports, the said rubber washer (24) is provided on said tubular member in between said tubular member and said storage tank.
The storage assembly comprises; a storage tank (1) for storing the urea solution, a level sensor assembly (3) for sensing the exact level of urea solution in said storage tank, as well as to provide in and out gateway for said solution and also provide a way of communication between tank and Engine ECU,a sender unit (2) provided for securely locking the level sensor, said tank having plurality of metal inserts of (4), ( 5) and (11) for securely mounting said tank, drain system and the inlet system of said storage tank, Said drain system having a screw (6) and Gasket (7) members for providing draining facility for said urea solution, said inlet system having an adaptor (9), seal (8) and head cap screw (10) for providing seating facility for urea

injecting gun, a flat seal (12), a head cap Screw (13), end fitting cup (14) and a plastic cap (15) for locking of the said cap assembly of said storage tank.
Said storage tank (1) is made of high density poly ethilyne (HDPE) or low density poly ethilyne (LDPE) plastic with the help of blow moldings or rotational molding process. Said storage tank (1) having a space/profile adopted for providing the doser unit for maximum space utilization and minimum flow of the said solution as well as less movement of the aggregates on the system. The said doser unit process the urea solution before sending to exhaust system.
The said profile of said storage tank can be provided based on the packaging constraints and the suitablity of access for maintainance. The doser unit can be accomodated on the said storage tank (1) at sutable location by suitable modification of the mounting structure of said assembly. The various sizes of the said storage tank assembly can also be accomodated by suitable modification of said mounting structure assembly.
Said metalic inserts (4) are used for mounting the storage tank on the mounting structure and the said metallic inserts are molded with tank simultaneously during the molding process of manufacturing of said storage tank.
A sender unit (2) made up of stainless steel is provided on the said storage tank providing the level sensor (3) for checking the desired level of urea solution in the said storage tank.
A desired flatness on the top surface of said sender unit (2) is maintained so as to avoid any leakage from the system and the said sender unit (2) is also molded with said storage tank (1) during the molding process. A unique profile to the said sender unit is provided so as to have level sensor seating only in a particular direction for fitting all the wiring harnesses in place.

Said storage tank (1) is having a draining system comprising a metallic insert (5), gasket (7) and a hex screw (6). Said metallic insert (5) is molded with the said storage tank (1).
Said storage tank (1) having an inlet system comprising an adaptor (9), seal (8) and a gasket (10) for providing seating facility for urea injecting gun, a flat seal (12), a head cap Screw (13), end fitting cup (14) and a plastic cap (15) for locking of the said cap assembly of said storage tank Said inlet system is provided for filling the said advlue solution. The profile of said adaptor (8) is matching with the filling gun. The said adaptor (8) with seal (9) and gasket (10) are provided at the neck area of said storage tank (1),
Said inlet system also comprises a locking cap (15) with an end fitting cup (14) and flat seal (12) mounted on the said storage tank. The said inlet system and locking systems forming a single unit is securely mounted on said storage tank with the help of a metal insert and screw (11).
In accordance with the present invention the method of assembly comprising the steps of;
Joining L-shaped bracket (16) and reinforcement bracket (17) together with the help of welding, joining said tubular member(18) with said L-shaped bracket (16), joining said bracket (20) provided for mounting the Doser unit with said L- shaped bracket (16) by welding, screwing said side shield member (19) on the said tubular member, making a mirror assembly as per the above steps, joining said base plate bracket (21) with said identical mirrored assembly, providing said back support member (22) with said assemblies, providing said storage tank assemblyon the said structure, providing said strap assembly (23) for holding said the tank assembly with said structure, mounting the complete assembly (25) on long member (26) near to the exhaust system (27) of the vehicle.
The foregoing description is a specific embodiment of the present invention. It should be appreciated that this embodiment is described for purpose of illustration

only, and that numerous alterations and modifications may be practiced by those skilled in the art without departing from the spirit and scope of the invention. It is intended that all such modifications and alterations be included insofar as they come within the scope of the invention as claimed or the equivalents thereof

WE CLAIM
1. A mounting structure assembly for storage tank in vehicles comprises; a pair of L-shape plate members (16), a pair of reinforcement members (17) of L-shape are mounted on the long member of vehicle, said plate members (16) are having a tubular member (18) provided for supporting the said storage tank from both the sides, said each tubular members (18) having a side shield member (19) provided to cover the said storage tank from both the sides, a pair of doser unit mounting member (20) are provided for mounting two different types of engine configurations, a base plate (21) provided at bottom of structure for supporting the said storage tank from bottom, a back support member (22) provided to support the said storage tank from back side, said back support member (22) is having a screwing location for providing a strap assembly (23) for locating and clamping the said storage tank assembly with the strap rubber, a rubber washer (24) provided between said tubular member (18) and storage tank,the complete storage tank assembly is mounted on mounting structure assembly which is securely mounted on the long member of vehicle.
2. The assembly as claimed in claim 1, wherein said tubular member (18) is a square cross section having screwing surface for mounting the said the storage tank,said side shields (19) is corrugated and said base plate (21) is mounted at bottom of said tubular member (18).
3. The assembly as claimed in claim 1, wherein said back support member (22) is provided with screwing locations for mounting said strap assembly (23) provided for locating and clamping the said storage tank with said strap assembly.
4. The assembly as claimed in claim 1, wherein said storage tank (1) is having a space or profile adopted for maximum space utilization, said storage tank is made of plastic with the help of blow moldings or rotational molding process.

5. The assembly as claimed in claim 1, wherein storage tank is having metalic inserts (4, 5, 11) molded during molding of said storage tank, said inserts are provided for mounting the storage tank on the assembly structure.
6. The assembly as claimed in claim 1, wherein storage tank (1) having bayonet sender unit (2) with adblue level sensor (3) molded during molding of said storage tank.
7. The assembly as claimed in claim 1, wherein said storage tank (1) is having a draining system comprising a metallic insert (5), gasket (7) and a hex screw (6), said metallic insert (5) is molded during molding of said storage tank (1).
8. The assembly as claimed in claim 1, wherein said storage tank (1) having an inlet system comprising an adaptor (8), seal (9) and a gasket (10) for filling the adblue solution,the profile of said adaptor (8) is matching with the filling" gun.
9. The assembly as claimed in claim 1, wherein said inlet system comprises a locking cap (15) with an end fitting cup (14) and flat seal (12) mounted on the said storage tank, said inlet system and locking system forming a single unit is securely mounted on said storage tank with the help of a metallic insert and screw(l 1).
10. A mounting structure assembly for storage tank in vehicles as herein described with reference to accompanying drawings.