FORM 2
THE PATENTS ACT 1970
(39 OF 1970)
AND
THE PATENTS RULES, 2005
COMPLETE SPECIFICATION (See Section 10; rule 13)
TITLE OF THE INVENTION
“OUTER REAR VIEW MIRROR (ORVM) MOUNTED VENTILATION SYSTEM FOR AN AUTOMOBILE”
APPLICANT(S)
TATA MOTORS LIMITED
an Indian Company
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 THE INVENTION
[0001] The present disclosure relates to a ventilation system for automobiles, and in particular, relates to the ventilation system mounted as an Outer Rear View Mirror (ORVM).
BACKGROUND OF THE INVENTION
[0002] Ventilation plays very vital role in human thermal comfort. Long route transportation is challenging task to a driver as it needs night stays in different ambient conditions in vehicles with sleeper cabins. Usually there are two drivers for long rout transportation in which one driver drives for 12-14 hours while the other driver relaxes/sleeps in the sleeper cabin. In the sleeper cabins, ventilation is a concern normally encountered. In the current ventilation systems, there is less ventilation air movement around human body due as current ventilation system does not provide more airflow in the sleeper cabins.
[0003] Conventional ventilation systems are known in the art and typically include an air duct leading to multiple air vents outlets nearby the occupant body for sufficient ventilation. Such outlets in the prior art regularly have a lamellar structure by means of which the flow direction of the air flowing out of an air outlet can be changed. Also the conventional ventilation system includes a blower motor which will run on the batteries consuming power. Hence, there remains a need of an efficient system that provides air in cabin of the automobile without using any blower motor and without using any additional electric energy.

OBJECT OF THE INVENTION
[0004] The principal object of the embodiment herein is to provide a ventilation system for automobile interiors that improves the cabin comfort. The ventilation system is mounted at a position of an outside rear-view mirror (ORVM) of the automobile.
[0005] Another object is to provide a ventilation system that provides air in cabin of the automobile without using any blower motor.
SUMMARY OF THE INVENTION
[0006] In one aspect, the object is satisfied by providing a ventilation system for an automobile. The ventilation system includes an air duct, an air vent, and an air flow case. The air duct has a hollow structure and includes a first end and a second end. The air flow case is connected at the second end of the air duct. The air flow case includes an air grill and a rear view mirror. The air grill is secured to the air flow case from a side that faces a direction of movement of the automobile so as to allow flow of the air into the air duct. The rear view mirror is secured to the air flow case from an opposite side of the air grill to show a rear view image. The air vent with an air outlet connected at the first end of the air duct to allow flow of air from the air duct into a cabin of the automobile.

[0007] In an embodiment, the ventilation system includes an air vent case mounted over the air vent to control the flow from the air duct into the cabin of the automobile.
[0008] In an embodiment, the ventilation system includes an evaporator having vapor compression cycle to raise an air pressure as it flows from the evaporator.
[0009] In an embodiment, the ventilation system is mounted at a position of an electric outside rear-view mirror (ORVM) of the automobile.
[0010] These and other aspects of the embodiment herein will be better appreciated and understood when considered in conjunction with the following description and the accompanying drawings. It should be understood, however, that the following descriptions, while indicating preferred embodiment and numerous specific details thereof, are given by way of illustration and not of limitation. Many changes and modifications may be made within the scope of the embodiment herein without departing from the spirit thereof, and the embodiment herein include all such modifications.
BRIEF DESCRIPTION OF DRAWINGS
[0011] The proposed ventilation system is illustrated in the accompanying drawings, throughout which like reference letters indicate corresponding parts in the various figures. The embodiment herein will be better understood from the following description with reference to the drawings, in which:

[0012] FIG. 1 illustrates an exploded view of a ventilation system for an automobile, according to embodiment as disclosed herein;
[0013] FIG. 2 illustrates a front assembled view of the ventilation system, according to embodiment as disclosed herein;
[0014] FIG. 3 illustrates a back assembled view of the ventilation system, according to embodiment as disclosed herein;
[0015] FIG. 4 illustrates a working principal of the ventilation system, according to embodiment as disclosed herein; and
[0016] FIG. 5 illustrates the ventilation system mounted over an outside rear-view mirror (ORVM) of the automobile, according to embodiment as disclosed herein.
DETAILED DESCRIPTION OF THE INVENTION
[0017] The embodiment herein and the various features and advantageous details thereof are explained more fully with reference to the non-limiting embodiment that are illustrated in the accompanying drawings and detailed in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiment herein. Also, the various embodiment described herein are not necessarily mutually exclusive, as some embodiment can be combined with one or more other embodiment to form new embodiment. The term “or”

as used herein, refers to a non-exclusive or, unless otherwise indicated. The examples used herein are intended merely to facilitate an understanding of ways in which the embodiment herein can be practiced and to further enable those skilled in the art to practice the embodiment herein. Accordingly, the examples should not be construed as limiting the scope of the embodiment herein.
[0018] The accompanying drawings are used to help easily understand various technical features and it should be understood that the embodiment presented herein are not limited by the accompanying drawings. As such, the present disclosure should be construed to extend to any alterations, equivalents and substitutes in addition to those, which are particularly set out in the accompanying drawings. Although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited by these terms. These terms are generally only used to distinguish one element from another.
[0019] Referring now to the drawings, and more particularly to FIGS. 1-5, there are shown preferred embodiments.
[0020] FIG. 1 illustrates an exploded view of a ventilation system for an automobile, according to embodiment as disclosed herein.
[0021] The automobile described herein includes but not limited to car, truck, and bus. The ventilation systems may be any systems for air conditioning of the vehicle interior, such as air conditioning systems and heaters and systems for defrosting vehicle windows.

[0022] The proposed ventilation system includes an air duct (1) connected to an air vent (2) and an air flow case (4). The air duct (1) has a hollow structure. The air duct (1) includes a first end and a second end. The air vent (2) with an air outlet (3) is connected at the first end of the air duct (1) to allow flow of air from the air duct (1) into a cabin of the automobile. The air flow case (4) is connected at the second end of the air duct (1). The air flow case (4) is a closed structure and may include movable channels or air guides to filter the air and/or increase the air pressure in the air duct (1).
[0023] The air flow case (4) includes an air grill (5) and a rear view mirror (6). The air grill (5) is fitted in a direction of automobile movement so as to allow the air flow into the air duct (1), and the rear view mirror (6) is fitted in opposite direction of the automobile movement to show a rear view image. Further, an air vent case (8) is mounted over the air vent (2) to control the flow from the air duct (1) into the cabin of the automobile.
[0024] When the automobile is in motion, the air enters into the air grill (5), the air is directed through the air duct (1) into the cabin of the automobile. This helps in improving comfort of driver and passenger in the automobile.
[0025] Unlike the conventional ventilation system, the proposed ventilation system serves for dual purposes, one for capturing the rear view image using the rear view mirror (6) and to provide ventilation air inside the cabin using the air grill (5).

[0026] Further, the ventilation system includes an evaporator (7) having vapor compression cycle to raise an air pressure as it flows from the evaporator (7). This serves the purpose of air conditioning without using any blowing motor and thus reduces an alternate duty cycle. This makes the proposed ventilation system economical as no fuel and engine power is used to run the ventilation system.
[0027] FIG. 2 illustrates a front assembled view of the ventilation system, according to embodiment as disclosed herein.
[0028] FIG. 3 illustrates a back assembled view of the ventilation system, according to embodiment as disclosed herein.
[0029] FIG. 4 illustrates a working principal of the ventilation system, according to embodiment as disclosed herein. When the automobile moves, the air (9) directly hits the grill (5) as the air grill (5) is fitted in a direction of vehicle movement to allow the air flow into the air duct (1). When the air enters the air grill (5), the air flows through the air duct (1) flow into the cabin of the automobile.
[0030] FIG. 5 illustrates the ventilation system mounted over an outside rear-view mirror (ORVM) of the automobile, according to embodiment as disclosed herein. The ventilation system is mounted at a position of an outside rear-view mirror (ORVM) of the automobile as when the automobile moves
[0031] The foregoing description of the specific embodiment will so fully reveal the general nature of the embodiment herein that others can, by applying current knowledge, readily modify and/or

adapt for various applications such specific embodiment without departing from the generic concept, and, therefore, such adaptations and modifications should and are intended to be comprehended within the meaning and range of equivalents of the disclosed embodiment. It is to be understood that the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiment herein have been described in terms of preferred embodiment, those skilled in the art will recognize that the embodiment herein can be practiced with modification within the scope of the embodiment as described herein.
[0032] List to reference numerals:

Sr. No. Description
1 air duct
2 air vent
3 air outlet
4 air flow case
5 an air grill
6 rear view mirror
7 evaporator
8 air vent case
9 air

We Claim:
1. A ventilation system for an automobile, comprising:
an air duct (1) having a hollow structure, wherein the air duct (1) comprises a first end and a second end;
an air flow case (4) connected at the second end of the air duct (1), wherein the air flow case (4) comprises:
an air grill (5) secured to the air flow case (4) from a side that faces a direction of movement of the automobile, so as to allow flow of the air into the air duct (1), and
a rear view mirror (6) secured to the air flow case (4) from an opposite side of the air grill (5) to show a rear view image; and an air vent (2) with an air outlet (3) connected at the first end of the air duct (1) to allow flow of air from the air duct (1) into a cabin of the automobile.
2. The ventilation system as claimed in claim 1, comprises an air vent case (8) mounted over the air vent (2) to control the flow from the air duct (1) into the cabin of the automobile.
3. The ventilation system as claimed in claim 1, wherein when the automobile is in motion, the air enters into the air grill (5) and flow through the air duct (1) into the cabin of the automobile.
4. The ventilation system as claimed in claim 1, comprises an evaporator (7) having vapor compression cycle to raise an air pressure as the air flows from the evaporator (7).

5. The ventilation system as claimed in claim 1, wherein the ventilation system is mounted at a position of an outside rear-view mirror (ORVM) of the automobile.