FORM 2
THE PATENTS ACT 1970
[39 OF 1970]
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
[See Section 10; rule 13]
"AN EXHAUST GAS RECIRCULATION VALVE WITH INTEGRATED
COOLER"
ADVIK HI-TECH PVT. LTD.
an Indian private Limited Company,
Plot No. B-5, Chakan Industrial Area, Phase II,
Village-Vasuli, Tal-Khed,
Dist-Pune, Pin-410501
Email: cie@advik.co.in
The following specification particularly describes the invention and the manner in
which it is to be performed.

FIELD OF INVENTION
[0001] The present invention relates to an exhaust gas recirculation valve, and
more particularly the present invention relates to the exhaust gas recirculation valve with integrated cooler.

BACKGROUND OF THE INVENTION
[0002] An emission of air pollutants such as hydrocarbons, carbon monoxide,
nitrogen oxide, sulphur oxide etc. in atmosphere have shown severe effects on health of living organism and environment. In past few decades the emission standards have been introduced throughout the globe. The emission standards define the acceptable limit of release of air pollutants into atmosphere. To follow the emission standards set by the governments of respective countries the use of emission control system has become mandatory. There are numerous emission control system have been used in the modern vehicles. An exhaust gas recirculation system is one of them.
[0003] Referring to Fig. 1, a conventional exhaust gas recirculation system
(100) is shown. The conventional exhaust gas recirculation system (100) (here onwards referred as conventional EGR system) allows the exhaust gases to be recirculated back into the intake manifold. This process lead to a significant reduction in Nitrogen Oxides emission, as it reduces excess oxygen inside the combustion chamber and peak combustion temperature. The conventional EGR system (100) reduces the combustion temperature by diverting a small portion of exhaust gases back into the intake manifold. The exhaust gas recirculation valve (130) (here onwards referred as EGR valve) plays vital role in exhaust gas recirculation system. The EGR valve (130) connects the exhaust manifold to the intake manifold. Generally, the EGR valve (130) remains in normally closed condition. The EGR valve (130) begins functioning once engine has started. It regulates the flow of exhaust gases in proportion with the speed of vehicle. Once

the vehicle speed slows down, the engine stops and EGR valve returns to its normally closed condition.
[0004] An EGR cooler (120) assists the EGR valve (130) to improve overall performance of the conventional EGR system (100). The EGR cooler helps to reduce the temperature of the exhaust gas before recirculating it to intake manifold via the EGR valve (130). The main drawback of the conventional EGR system (100) is bulkiness. Due to separate arrangement of EGR cooler there is a requirement of more space.
[0005] Hence, there is a need of EGR valve that overcomes the aforementioned
drawbacks.
OBJECTS OF THE INVENTION
[0006] The main object of a present invention is to provide an exhaust gas recirculation valve.
[0007] The another object of the present invention is to provide the exhaust gas recirculation valve with integrated cooler.
[0008] The another object of the present invention is to provide the exhaust gas recirculation valve having compact structure.
[0009] The another object of the present invention is to provide the exhaust gas recirculation valve that is cost effective.
[00010] The another object of the present invention is to provide the exhaust gas recirculation valve that improves overall efficiency of engine.
SUMMARY
[00011] An exhaust gas recirculation valve with integrated cooler includes a valve body (200a) and a cooler (200b), wherein the valve body (200a) is directly connected with the cooler (200b) so as to form exhaust gas recirculation valve

with integrated cooler. The valve body includes at least one inlet (320a), at least one outlet (320b), at least one flow cavity (320c), a plunger (330), a guiding means (340), and an actuation mechanism (370). The cooler (200b) includes a coolant inlet (410), a coolant outlet (420), a coolant flow path (430), a cooler inlet (440), a cooler outlet (450) and plurality of fins (460). The inlet (320a) of the valve body (200a) is directly connected with the cooler outlet (450) so as to form exhaust gas recirculation valve (200) with integrated cooler. The inlet (440) is adapted to receive the exhaust gas from the engine. The coolant flow path (430) is adapted for cooling the exhaust gas traveling between the cooler inlet (440) and the cooler outlet (450). Plurality of fins (460) are provided to further enhance the cooling performance of the cooler (200b).
BRIEF DESCRIPTION OF THE DRAWINGS
[00012] The accompanying drawings constitute a part of the description and are used to provide further understanding of the present invention. Such accompanying drawings illustrate the embodiments of the present invention which are used to describe the principles of the present invention together with the description.
[00013] Fig. 1 shows a conventional exhaust gas recirculation system disclosed in the prior art;
[00014] Fig. 2 shows a front perspective view of an exhaust gas recirculation valve with integrated cooler in accordance with the preferred embodiment of a present invention;
[00015] Fig. 3 shows a cross sectional view of a valve body; and
[00016] Fig. 4 shows a cooler in accordance with the preferred embodiment of the present invention.
DETAILED DESCRIPTION OF THE INVENTION

[00017] As used in the description herein and throughout the claims that follow, the meaning of "a," "an," and "the" includes plural reference unless the context clearly dictates otherwise. Also, as used in the description herein, the meaning of "in" includes "in" and "on" unless the context clearly dictates otherwise.
[00018] If the specification states a component or feature "may", "can", "could", or "might" be included or have a characteristic, that particular component or feature is not required to be included or have the characteristic.
[00019] Exemplary embodiments will now be described more fully hereinafter with reference to the accompanying drawings, in which exemplary embodiments are shown. This disclosure may however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. These embodiments are provided so that this disclosure will be through and complete and will folly convey the scope of the disclosure to those of ordinary skill in the art. Moreover, all statements herein reciting embodiments of the disclosure, as well as specific examples thereof, are intended to encompass both structural and functional equivalents thereof Additionally, it is intended that such equivalents include both currently known equivalents as well as equivalents developed in the future (i.e., any elements developed that perform the same function, regardless of structure).
[00020] Fig. 2 shows a front perspective view of an exhaust gas recirculation valve (200) with integrated cooler in accordance with the preferred embodiment of a present invention. The exhaust gas recirculation valve (200) includes a valve body (200a) and a cooler (200b).
[00021] Referring to Fig. 3, the valve body (200a) includes an inlet (320a), an outlet (320b), a flow cavity (320c), a plunger (330), a guiding means (340), a spring (350), a diaphragm (360) and an actuation mechanism (370).
[00022] Referring to Fig. 4, the cooler (200b) includes a coolant inlet (410), a coolant outlet (420), a coolant flow path (430) (not shown in Fig.), a cooler inlet

(440), a cooler outlet (450) and a fins (460). The inlet (440) is adapted to receive the exhaust gas from the engine outlet. The coolant enters the coolant flow path (430) from the coolant inlet (440) and exits through the coolant outlet (450), wherein the coolant flow path (430) is adapted for cooling the exhaust gas traveling between the cooler inlet (440) and the cooler outlet (450). The fins (460) are provided to further enhance the cooling performance of the cooler (200b). The inlet (320a) of the valve body (200a) is directly connected with the cooler outlet (450) so as to form exhaust gas recirculation valve (200) with integrated cooler.
[00023] Referring to Fig. 2, Fig. 3 and Fig. 4, the operational characteristics of the exhaust gas recirculation valve (200) is explained. The exhaust gas recirculation valve (200) is configured to remain in normally closed condition. When the exhaust gas recirculation valve (200) receives electrical input the actuation mechanism (370) enables axial displacement of the plunger (330). As a result, exhaust gas flow path from the inlet (320a) to the outlet (320b) via the flowing cavity (320c) becomes open to recirculate the exhaust gas to the internal combustion engine. The exhaust gas enters the cooler (200b) through the cooler inlet (440) and travels towards the cooler outlet (450). While traveling between the inlet (440) and the outlet (450) the exhaust gas gets cooled due to coolant circulation through the coolant flow path (430). The cooled exhaust gas exits the cooler (200b) from the outlet (450) and enters the valve body (200a) through the inlet (320a). Further the exhaust gas travels through the chamber (320c) and exits the valve body (200a) through the outlet (320b) and finally gets recirculated into the intake manifold of the engine.
[00024] In the above detailed description, reference is made to the accompanying drawings that form a part thereof, and illustrate the best mode presently contemplated for carrying out the invention. However, such description should not be considered as any limitation of scope of the present invention. The structure thus conceived in the present description is susceptible

of numerous modifications and variations, all the details may furthermore be replaced with elements having technical equivalence.
[00025] LIST OF REFERENCE NUMERALS
1. A exhaust gas recirculation valve (200)
2. A valve body (200a)
3. A cooler (200b)
4. A housing (310)
5. An inlet (320a)
6. An outlet (320b)
7. A flow cavity (320c)
8. A plunger (330)
9. A guiding means (340)
10. A spring (350)
11. A diaphragm (360)
12. An actuation mechanism (370)
13. A coolant inlet (410)
14. A coolant outlet (420)

15. A coolant flow path (430)
16. A cooler inlet (440)
17. A cooler outlet (450)
18. Fins (460)

CLAIMS We claim,
1. An exhaust gas recirculation valve with integrated cooler comprising:
A valve body (200a); and
A cooler (200b), wherein the valve body (200a) is directly connected with the cooler (200b) so as to form exhaust gas recirculation valve with integrated cooler.
2. The exhaust gas recirculation valve with integrated cooler as claimed in claim 1 wherein, the valve body (200a) includes at least one inlet (320a), at least one outlet (320b), at least one flow cavity (320c), a plunger (330), a guiding means (340), and an actuation mechanism (370).
3. The exhaust gas recirculation valve with integrated cooler as claimed in claim 1 wherein, the cooler (200b) includes a coolant inlet (410), a coolant outlet (420), a coolant flow path (430), a cooler inlet (440), a cooler outlet (450) and plurality of fins (460).
4. The exhaust gas recirculation valve with integrated cooler as claimed in claim 1 wherein, the inlet (320a) of the valve body (200a) is directly connected with the cooler outlet (450) so as to form exhaust gas recirculation valve (200) with integrated cooler.
5. The exhaust gas recirculation valve with integrated cooler as claimed in claim 1 wherein, the inlet (440) is adapted to receive the exhaust gas from the engine.
6. The exhaust gas recirculation valve with integrated cooler as claimed in claim 1 wherein, the coolant flow path (430) is adapted for cooling the exhaust gas traveling between the cooler inlet (440) and the cooler outlet (450).

7. The exhaust gas recirculation valve with integrated cooler as claimed in claim 1 wherein, plurality of fins (460) are provided to further enhance the cooling performance of the cooler (200b).