[01] Embodiments of the present invention relate generally to cooling systems in agricultural machine. More particularly, the embodiments of the present invention relate retaining cooling efficiency of a cooling system of an agricultural vehicle implemented agriculture, a radiator in the cooling system comprising a mechanism to collect dust particles the air prior to passing through the radiator fins.
BACKGROUND OF THE INVENTION
[02] It is known that an agricultural vehicle such as a tractor utilizes fuel and air for produci power within an engine through combustion. Of the total power generated by the engine, onb portion of the power is actually supplied to the agricultural vehicle and the rest is wasted in 1 form of heat and exhaust. If the excess heat generated in the engine is not removed, th temperature of the engine may become too high resulting in overheating of components in 1 engine and viscosity breakdown of lubricating oil used in the engine and causing high fricti between the components in the engine. In order to remove the excessive heat, typically a cooli system is used in the agricultural vehicler
[03] Generally, the cooling system is provided at a front side of the agricultural vehicle closer to placement of the engine depending upon the design of the agricultural vehic FIGURE 1 shows an agricultural vehicle, such as a tractor 10 comprising a cooling system ; As may be appreciated, the tractor 10 comprises an axle 12 mounted to wheels 14. Further, 1 tractor 10 comprises a housing 16 having a front grill 18 and one or more side grills 20. T housing 16 further comprises a hood 22. Within or under the housing 16, the tractor compris the cooling system 30.

[04] Referring to FIGURE 2, a perspective view of the cooling system 30 is shown, in accordance with the known art. The cooling system 30 comprises a radiator 32 consisting of small tubes equipped with a honeycomb of fins 34, a water pump 36, a cooling fan 38 which is generally engine driven, a radiator pressure cap 40, a thermostat 42, coolant galleries around the series cylinders 44 of the engine for directing a coolant to the engine. In operation, as a coolant travels through the coolant galleries of cylinders 44, the coolant becomes hot or accumulates heat. When the temperature of the coolant increases above a certain threshold value, the thermostat 42 triggers a valve (not shown), which forces the coolant to flow through the radiator 32. The radiator pressure cap 40 increases boiling point of the coolant by maintaining a constant pressure on the cooling system 30 and ensures a consistent flow of coolant. As the coolant flows through the radiator 32 comprising tubes, the heat is transferred through the fins 34 and the walls of the tubes to the air by conduction and convection. Further, the cooling fan 38 draws or sucks fresh air 48 through the radiator 32 for cooling the coolant flowing through the radiator 32 for reducing the temperature of the coolant.
[05] It may be noted that fresh air suctioned from the surrounding atmosphere may also consist of small dust particles due to the environment or surroundings wherein the tractor is operating. Generally, such surroundings include a lot of dust and small particles. The performance or efficiency of the radiator 32 may get affected due to accumulation of aforementioned dust particles at the radiator 32 over a period of time. For instance, if the tractor 10 is used for a reaper application, then the fins 34 of the radiator 32 may get blocked in a short duration with dust or foreign particles 46 that affect the cooling of the engine as this will reduce the coolant heat released by convection via fins. In other words, the dust 46 accumulated at the fins 34 of the radiator 32 may result in deteriorating the cooling efficiency of the radiator 32 over the period, which in turn may result in overheating of the engine.
[06] Referring to FIGURES 3A and 3B, an exemplary scenario in which the dust 46 has blocked the fins 34 of the radiator 32 is depicted. Once the engine gets overheated, an operator of the tractor 10 may have to shut off the engine and clean the radiator 32 manually with the help of a cloth or a duster to regain the radiator efficiency.

[07] In order to overcome the problem of dust accumulation at the radiator, several solutions have been proposed in the past. One such solution includes providing a screen or filter over the radiator or the grill of the tractor. However, the screen too gets choked over a period of time and the operator has to remove the screen frequently for cleaning. In addition, the screen may restrict or limit the fresh air drawn by the fan through the radiator once the screen is blocked with dust.
[08] One example of collecting dust or unwanted airborne matter is disclosed in a PCT Publication No. 2019068909A1, titled "Air purification & tractor filter." WO2019068909A1 discloses an air filtering apparatus having a number of separate filter surfaces. A filter surface comprises a fan associated with the filter surface, which is arranged in use to cause air to pass over or through the filter surface. At least some of the plurality of fans is operable to generate sufficient lift to cause the apparatus to become airborne.
[09] Another example is disclosed in a German Patent Application No. 202006004522U1, entitled "Fine dust filter system for vehicle is fitted in main air flow between grille serving as air inlet, and radiator". DE202006004522U1 discloses that the fine dust filter is based on the principle of the electrical and magnetic separation. The filter (2) is fitted in a vehicle in the main airflow between the grille (1) serving as the air inlet, and a radiator (3) for cooling the engine (5). The filter and a radiator may be a single construction unit in one housing. There may be a channel (4) branching off to take air for ventilation and combustion.
[010] Each of the above-referenced filter systems has limitations. For instance, the performance of the filter system may deteriorate and may result in deteriorating cooling efficiency of the radiator and overheating of the engine. Additionally, the filter system may have to be checked frequently for damage due to the use of the tractor in different conditions, applications, and/or terrains.
[011] Therefore, there is a need for improvement in the structure/functions, use and manufacture of a cooling system that collects dust prior to entering the radiator and retains cooling efficiency of the radiator. The present invention makes possible a number of the needed solutions to current state of the art.

SUMMARY OF THE INVENTION
[012] The present invention includes a cooling system provided in an agricultural vehicle such as a tractor, the cooling system comprising a mechanism to collect dust prior to entering the cooling system.
[013] According to one aspect of the presently disclosed subject matter, there is provided an improved cooling system as herein described.
[014] In view of the above, it is an object of the present invention to provide a cooling system that utilizes an Electrostatic Discharge Cleaning (EDC) method for collecting dust prior to entering the cooling system for retaining cooling efficiency of a radiator used in the cooling system.
[015] It is another object to provide a cooling system comprising electrostatic plates placed at i.e., before and outside of the radiator for collecting the dust to ensure that only fresh clean air enters the radiator.
[016] In order to achieve one or more of the objects, the present invention provides a cooling system comprising electrostatic plates i.e., discharging electrodes and dust collecting electrodes for collecting dust prior to entering a radiator of the cooling system such that the radiator can retain its cooling efficiency.
[017] The cooling system comprises a radiator and a cooling fan for sucking air into the radiator for cooling a coolant flowing through the radiator. The cooling system comprises discharging electrodes and dust collecting electrodes mounted adjacent to the radiator. The discharging electrodes are provided in perpendicular to the dust collecting electrodes. In the present embodiment, the discharging electrodes are mounted to a grill of a tractor and the dust collecting electrodes are mounted to a hood of the tractor.

[018] In order to collect the dust prior to entering the radiator, a voltage is applied to the discharging electrodes and the dust collecting electrodes to form an electric field. The electric field formed in the discharging electrodes charges dust particles in the air sucked by the cooling fan. The electric field formed in the dust collecting electrodes tugs the charged dust particles at surface of the dust collecting electrodes thereby collecting the dust prior to entering the radiator at the surface of the dust collecting electrodes. In other words, as the cooling fan sucks the air comprising dust particles, the dust particles pass through the discharging electrodes, which get negatively charged. Subsequently, the negatively charged dust particles get attracted towards the dust collecting electrodes that are positively charged. As the dust particles get stuck at the surface of the dust collecting electrodes, the dust particles do not come in contact with the radiator and block it. As a result, the efficiency of the radiator to cool a coolant flowing the radiator can be retained.
[019] In one advantageous feature of the present invention, the dust collecting electrodes can be removed for cleaning the dust and reinstalled. This ensures that the radiator can be used for a longer time efficiently and avoids frequent cleaning of the radiator by an operator.
[020] Other objects, technical aspects and advantages of the presently disclosed cooling system in a tractor will become apparent upon reading the technical description appearing below.

BRIEF DESCRIPTION OF THE DRAWINGS
[021] The present subject matter will now be described in detail with reference to the drawings, which are provided as illustrative examples of the subject matter so as to enable those skilled in the art to practice the subject matter. Notably, the FIGURES and examples are not meant to limit the scope of the present subject matter to a single embodiment, but other embodiments are possible by way of interchange of some or all of the described or illustrated elements and, further, wherein:
[022] FIGURE 1 shows an agricultural vehicle such as a tractor 10 comprising a cooling system 30, in accordance with prior art;
[023] FIGURE 2 provides an elevated perspective view of the cooling system 30 as in the prior art;
[024] FIGURES 3A and 3B illustrate an aspect of a radiator 32 accumulating dust 46, in accordance with prior art;
[025] FIGURE 4 illustrates a perspective view of an agricultural vehicle such as a tractor 100 comprising a cooling system 120, in accordance with an aspect of the present invention;
[026] FIGURE 5 illustrates a side view of the cooling system 120, in accordance with an aspect of the present invention;
[027] FIGURE 6 illustrates a diagrammatic representation of an electrostatic precipitator principle employed in the cooling system 120 for retaining cooling efficiency of a radiator 122, in accordance with an aspect of the present invention; and

[028] FIGURE 7 illustrates a front skeletal view of the cooling system 120 comprising discharging electrodes 114 and dust collecting electrodes 116 for collecting dust particles 140 prior to entering the radiator 122, in accordance with an aspect of the present invention.
[029] It will be noted that throughout the appended drawings, like features are identified by like reference numerals.

DETAILED DESCRIPTION
[030] Reference now will be made in detail to embodiments of the invention, one or more examples of which are illustrated in the drawings. Each example is provided by way of explanation of the invention, not limitation of the invention. In fact, it will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the scope or spirit of the invention. For instance, features illustrated or described as part of one embodiment can be used with another embodiment to yield a still further embodiment. Thus, it is intended that the present invention covers such modifications and variations as come within the scope of the appended claims and their equivalents.
[031] This written description uses examples to disclose the technology, including the best mode, and also to enable any person skilled in the art to practice the technology, including making and using any devices or systems and performing any incorporated methods. The patentable scope of the technology is defined by the claims, and may include other examples that occur to those skilled in the art. Such other examples are intended to be within the scope of the claims if they include structural elements that do not differ from the literal language of the claims, or if they include equivalent structural elements with insubstantial differences from the literal language of the claims.
[032] One or more specific embodiments of the disclosure are described below. In order to provide the brief description of these embodiments, all features actually realized may not describe in the description. It should be understood that in any such exploitation actually realized, as in any engineering or design object, it is necessary to make the specific mesh determined to realize developer of many realizations, mark such as meets the related constraint relevant with business of system, another implementation is implemented into from one can be different. In addition, should it recognize, such development may be complicated and time-consuming, but for those of ordinary skill for benefiting from the disclosure, it is still design, manufacture and the normal work to do of production.

[033] When introducing the element of various embodiments of the disclosure, the article "one", "the" and "described" be intended to indicate that there are one or more elements. It is that the terms "include", "comprise" "consist" and " having " are intended that inclusive and mean in addition to listing element except may exist another element.
[034] Although certain features only have shown and described herein, those skilled in the art will envision that many modifications and change. It is therefore to be understood that appended claims be intended to cover fall into all such modifications in disclosure true spirit and Variation.
[035] For purposes of description herein, the terms "upper," "lower," "left," "rear," "right," "front," "vertical," "horizontal," "parallel", "perpendicular" and derivatives thereof shall relate to the invention as oriented in FIGURE 4. Furthermore, there is no intention to be bound by any expressed or implied theory presented in the preceding technical field, background, brief summary or the following detailed description. It is also to be understood that the specific devices and processes illustrated in the attached drawings, and described in the following specification, are simply exemplary embodiments of the inventive concepts defined in the appended claims. Hence, specific dimensions and other physical characteristics relating to the embodiments disclosed herein are not to be considered as limiting, unless the claims expressly state otherwise.
[036] Referring to FIGURE 4, a perspective view of an agricultural vehicle such as a tractor 100 comprising a cooling system 120 is shown, in accordance with one embodiment of the present invention. Here, the description is explained considering that tractor 100 is a tractor, however a person skilled in the art will understand that the cooling system may also be implemented in other agricultural vehicles. The tractor 100 comprises an axle 102 mounted to wheels 104. Further, the tractor 100 comprises a housing 106 having a front grill 108 and side grills 110. The housing 106 further comprises a hood 112. Further, the tractor comprises the cooling system 120 within or under the housing 106.
[037] Referring to FIGURES 5 and 7, a side and a front view, respectively of the cooling system 120 are shown, in accordance with one embodiment of the present invention. The cooling

system 120 comprises a radiator 122 consisting of small tubes equipped with a honeycomb of fins 124. Further, the cooling system 120 comprises a water pump 126, a cooling fan 128, a radiator pressure cap 130, a thermostat 132, and an engine block 134 having a series of cylinders 136
[038] In the current embodiment, the tractor 100 is provided with an electrostatic precipitator to collect dust prior to entering the cooling system 120 in order to retain cooling efficiency of the radiator 122. In order to implement a principle of the electrostatic precipitator to collect dust prior to entering the cooling system 120, the tractor 100 is provided with discharging electrodes 114 and dust collecting electrodes 116 at the cooling system 120. Referring to FIGURES 4 and 7, the tractor 100 comprising the discharging electrodes 114 and the dust collecting electrodes 116 is shown. In one implementation, the discharging electrodes 114 include a pair of discharging electrodes 114, each of which is provided at far end of either the front grill 108 or side grills 110. For example, the discharging electrodes 114 might be provided in parallel at far ends of the front grill 108. In another example, the discharging electrodes 114 might be provided at either side of the side grills 110. Further, the dust collecting electrodes 116 include a pair of dust collecting electrodes 116, each of which is provided at far end i.e., upper and lower portion of the hood 112. As can be seen from FIGURE 7, the discharging electrodes 114 are placed in perpendicular to the dust collecting electrodes 116. In the current embodiment, the discharging electrodes 114 and the dust collecting electrodes 116 are electrically connected to a battery (not shown) or an alternator (not shown) of the tractor 100.
[039] It should be understood that whilst examples of positioning the discharging electrodes 114 and the dust collecting electrodes 116 are described herein, the discharging electrodes 114 and the dust collecting electrodes 116 could be installed at any suitable location of the cooling system 120 where there is an airflow to the cooling system 120.
[040] Now referring to FIGURE 6, the principle of the electrostatic precipitator employed by the discharging electrodes 114 and the dust collecting electrodes 116 to collect dust particles is explained. At first, a voltage, for example 12 volts is applied from a power source to form an electric field at the discharging electrodes 114 and the dust collecting electrodes 116. The

electric field produced around the discharging electrodes 114 charges the dust particles contained in the air by a corona discharge. The corona discharge is a phenomenon that between the two electrodes, the electrode having the stronger electric field has conductivity by the high voltage. Further, the charged dust particles are tugged to the dust collecting electrodes 116 by a Coulomb force generated in direction of the dust collecting electrodes 116 in the electric field, whereby the dust particles are collected at the surface of the dust collecting electrodes 116.
[041] Alternatively, an ionized gun (not shown) may be used in the arrangement. The ionized gun may be used to ionize the plate. Once the plate is ionized, the plate may attract the dust particle prior to the dust particles getting stuck in the radiator fins 124.
[042] Now referring to FIGURES 4 and 7, the tractor 100 employing the principle of the electrostatic precipitator for collecting dust particles described above (FIGURE 6) is explained, in accordance with one embodiment of the present invention. As specified above, the discharging electrodes 114 might be provided in parallel at the far ends of the front grill 108 or the side grills 110. Further, the dust collecting electrodes 116 are provided at the upper and lower portion of the hood 112. In the current embodiment, the discharging electrodes 114 and the dust collecting electrodes 116 might be electrically connected to a power source e.g., the battery of the tractor 100. Alternatively, the discharging electrodes 114 and the dust collecting electrodes 116 might be electrically connected to the alternator of the tractor 100.
[043] In operation, when the cooling fan 128 sucks the air 150 comprising the dust particles 140 through the front grill 108 and the side grills 110, the air 150 comprising the dust particles 140 passes through the radiator 122. Before entering the radiator 122, the air 150 comprising the dust particles 140 is charged or electro magnetized with the help of the discharging electrodes 114. In one implementation, the discharging electrodes 114 may comprise a coil or wire wounded at the front grill 108 or side grills 110 of the tractor 100. The wire or coil might be made up of tungsten or any other suitable material. A high voltage of 12 V might be applied to the discharging electrodes 114 i.e., wire e.g., from the battery to form an electric field. Subsequently, the electric field produced around the wire charges the dust particles 140 contained in the air 150 by a corona discharge.

[044] In another implementation, the discharging electrodes 114 may comprise electron guns placed at the front grill 108 or the side grills 110 of the tractor 100. It should be understood that the electron guns might be used instead of the wire. The electron guns might be preferred, as the electron gun requires less power from the battery to operate compared to the wire. When a high voltage is applied, the electron gun charges the dust particles 140 in the air 150 by the corona discharge.
[045] In another implementation, the discharging electrodes 114 may comprise ionizer guns placed at the front grill 108 or the side grills 110 of the tractor 100. It should be understood that the ionizer guns might be used instead of the wire/electron guns. In the present embodiment, the ionizer guns might be used for charging the dust particles 140. The ionizer guns might be operated at a low voltage for ionizing the dust particles 140.
[046] It should be understood that when the air 150 comprising the dust particles 140 pass through the discharging electrodes 114, the dust particles 140 get negatively charged. Subsequently, the (electro magnetized) charged dust particles 140 are tugged to the dust collecting electrodes 116 by the Coulomb force generated in direction of the dust collecting electrodes 116 in the electric field, whereby the dust particles 140 are collected at the surface of the dust collecting electrodes 116, as can be seen from FIGURE 7. In other words, after electro magnetization by the discharging electrodes 114, the dust/fine particles 140 contained in the air 150 gets negatively charged and get attracted by the dust collecting electrodes 116, which are positively charged.
[047] Since the dust collecting electrodes 116 are mounted to the hood 112, the dust particles 140 get accumulated outside of the cooling system 120, i.e., the radiator 122. As such, only clean air enters the radiator 122. As specified above, the radiator 122 transfers heat from the hot coolant flowing through it to the air blown through it by the cooling fan 128. Since the radiator 122 operates with the clean air, performance of the radiator 122 to reduce the temperature of the coolant is retained for longer time.

[048] In order to clean the dust particles 140 accumulated at the dust collecting electrodes 116, an operator of the tractor 100 might remove the dust collecting electrodes 116 and clear the dust particles 140 and refit the dust collecting electrodes 116 to the hood 112.
[049] Based on the above, it is evident that the dust particles 140 get collected at the dust collecting electrodes 116 provided at the hood 112, the radiator 122 cooling efficiency to cool the coolant flowing through is retained. As such, the tractor 100 can be operated in different conditions such as dusty areas during Reaper or any other applications.
[050] In one embodiment, the tractor employing the principle of the electrostatic precipitator can be used as a replacement for a pre-cleaner. As known, the pre-cleaner is used for collecting the dust and for providing fresh air to an air cleaner. By employing the principle of the electrostatic precipitator, the pre-cleaners can be replaced with the discharging electrodes and the dust collecting electrodes for collecting dust prior to the air cleaner and only fresh air can be sent to the air cleaner.
[051] It should be understood that whilst the embodiments refer to a conventional agricultural vehicle, i.e., a tractor, the discharging electrodes and the dust collecting electrodes might also be applied to an electric vehicle that has the required electric power source needed to operate the discharging electrodes and the dust collecting electrodes to collect the dust.
[052] In the above description, numerous specific details are set forth such as examples of some embodiments, specific components, devices, methods, in order to provide a thorough understanding of embodiments of the present disclosure. It will be apparent to a person of ordinary skill in the art that these specific details need not be employed, and should not be construed to limit the scope of the disclosure.
[053] In the development of any actual implementation, numerous implementation-specific decisions must be made to achieve the developer's specific goals, such as compliance with system-related and business-related constraints. Such a development effort might be complex and time consuming, but is nevertheless a routine undertaking of design, fabrication, and

manufacture for those of ordinary skill. Hence, as various changes could be made in the above constructions without departing from the scope of the invention, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.
[054] The foregoing description of embodiments is provided to enable any person skilled in the art to make and use the subject matter. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the novel principles and subject matter disclosed herein may be applied to other embodiments without the use of the innovative faculty. The claimed subject matter set forth in the claims is not intended to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein. It is contemplated that additional embodiments are within the spirit and true scope of the disclosed subject matter.

WE CLAIM:
1. A cooling system (120) for collecting dust (140) and retaining cooling efficiency in an
agricultural vehicle, the cooling system (120) comprising:
a radiator (122) mounted to an engine via a front axle support (134);
an cooling fan (128) for sucking air (150) into the radiator (122) for cooling a coolant flowing through the radiator (122);
characterized in that:
the cooling system (120) comprises:
discharging electrodes (114) and dust collecting electrodes (116) mounted adjacent to the radiator (122), wherein the discharging electrodes (114) are provided in perpendicular to the dust collecting electrodes (116),
wherein a voltage is applied to the discharging electrodes (114) and the dust collecting electrodes (116) to form an electric field, wherein the electric field formed in the discharging electrodes (114) charges dust particles (140) in the air (150) sucked by the cooling fan (128), and
wherein the electric field formed in the dust collecting electrodes (116) tugs the charged dust particles (140) at surface of the dust collecting electrodes (116), thereby collecting the dust (1140) prior to entering the radiator (122) at the surface of the dust collecting electrodes (116) and retaining cooling efficiency of the radiator (122) in cooling the coolant flowing through the radiator (122).
2. The cooling system (120) as claimed in claim 1, wherein the discharging electrodes (114) comprise wires.
3. The cooling system (120) as claimed in claim 1, wherein the discharging electrodes (114) comprise electron guns.
4. The cooling system (120) as claimed in claim 3, wherein the discharging electrodes (114) are placed on a grill (108; 110) of the agricultural vehicle (100) adjacent to the radiator (122).

5. The cooling system (120) as claimed in claim 4, wherein the dust collecting electrodes (116) are placed on a hood (112) of the agricultural vehicle (100).
6. The cooling system (120) as claimed in claim 1, wherein the high voltage is applied from a battery or an alternator of the agricultural vehicle (100) to the discharging electrodes (114) and the dust collecting electrodes (116).
7. The cooling system (120) as claimed in claim 1, wherein the discharging electrodes (114) comprise ionizer guns for charging the dust particles (140).
8. An agricultural vehicle (100), comprising:
a radiator (122);
a cooling fan (128) for sucking air (150) into the radiator (122);
characterized in that:
the agricultural vehicle (100) comprises:
discharging electrodes (114) placed at a front of the agricultural vehicle (100); and
dust collecting electrodes (116) provided in perpendicular to the discharging electrodes
(114),
wherein a high voltage is applied to the discharging electrodes (114) and the dust collecting electrodes (116) to form an electric field, wherein the electric field formed in the discharging electrodes (114) charges dust particles (140) in the air (150) sucked by the cooling fan (128), and
wherein the electric field formed in the dust collecting electrodes (116) tugs the charged dust particles (140) at surface of the dust collecting electrodes (116), thereby collecting the dust (140) prior to entering the radiator (122) at the surface of the dust collecting electrodes (116) for retaining cooling efficiency of the radiator (122) in cooling the coolant flowing through the radiator (122).
9. The agricultural vehicle (100) as claimed in claim 8, wherein the discharging electrodes
(114) comprise ionizer guns for charging the dust particles (140).

10. The agricultural vehicle (100) as claimed in claim 8, wherein the high voltage is applied from a battery or an alternator of the agricultural vehicle (100) to the discharging electrodes (114) and the dust collecting electrodes (116).