FIELD

The present disclosure relates to the field of refrigeration systems in vehicles.

DEFINITIONS

As used in the present disclosure, the following term is generally intended to have the meaning as set forth below, except to the extent that the context in which they are used indicate otherwise.
The expression 'refrigeration cycle driving device' used hereinafter in this specification refers to, but is not limited to, refers to a device which converts input energy into mechanical energy which is utilized for driving a refrigeration cycle. The refrigeration cycle can be a vapour compression cycle, a vapour absorption cycle, a gas cycle, a reverse Stirling cycle, a Gifford-McMahon cycle, a Joule-Thomson cycle, a Siemens cycle. The refrigeration cycle driving device is a compressor in a vapour compression cycle, a pump in a vapour absorption cycle, a compressor in a gas cycle, a reverse Stirling cycle, a Gifford-McMahon cycle, a Joule-Thomson cycle and a Siemens cycle.
BACKGROUND
The background information herein below relates to the present disclosure but is not necessarily prior art.
It has been found that about 18% of the farm produce is wasted due to the non-availability of optimum storage systems. The available storage systems are either geographically far from the reach of the farmers. Also, different commodity needs different storage temperature. Therefore, finding a cold storage system for different commodities is another challenge. Economic viability is also a concern for cultivators. Wastage of vegetables, fruits, fish, meat, poultry and such other food produce is a direct loss to the cultivators. A reasonable proportion of the wastage of food produce occurs during haulage.

Use of ice blocks is a convenient method for refrigeration of farm produce during haulage. However, there are differences between the storage temperature ranges for fish, vegetables and poultry. Moreover, fruits and vegetables require specific temperature control requirements for specific treatments such as pre-cooling and ripening. Temperature control is hardly possible with the use of ice blocks.
The other existing refrigeration systems run on a three-phase electric supply whereas rural areas majorly have a single-phase electric supply. Most of the existing refrigeration systems for perishable farm produce run on electric power.
Refrigeration trucks are available in market but the use is limited to dairy, fruits and frozen commodities. Moreover, in refrigerated trucks, the cooling unit is permanently mounted on the truck. Since trucks are not equipped to generate the traction required to manoeuvre in the uneven terrains of farms and fields, perishable commodities produced in the farms are loaded in the refrigeration trucks only after they are pre-cooled externally. Thus, the usage is limited to transport of pre-cooled products. Trucks with a fixed cooling system are expensive and are for limited use.
Most of the farming population owns a tractor and other agricultural vehicles. While the tractors are generally used for transporting farm produce by loading the produce on trailers attached to the tractors, there is no means for refrigeration of commodities loaded in the trailer of a tractor currently available.
Hence, there is felt a need for a refrigerated storage and mobility system for perishables operated and trailed by an agriculture vehicle, which eliminates the aforementioned issues.
OBJECTS
Some of the objects of the present disclosure, which at least one embodiment satisfies, are as follows.

It is an object of the present disclosure to ameliorate one or more problems of the prior art or to at least provide a useful alternative.
An object of the present disclosure is to provide a refrigerated storage and mobility system for perishables operated and hauled by an agricultural vehicle.
Another object of the present disclosure is to provide a refrigerated storage and mobility system for perishables operated and hauled by an agricultural vehicle, which can be operated when the agricultural vehicle is moving as well as when the agricultural vehicle is stationary.
Yet another object of the present disclosure is to provide a refrigerated storage and mobility system for perishables operated and hauled by an agricultural vehicle, which allows refrigeration of perishables over a wide range of storage temperatures.
Other objects and advantages of the present disclosure will be more apparent from the following description, which is not intended to limit the scope of the present disclosure.
SUMMARY
The present disclosure envisages a trailer for refrigerated storage and mobility of perishables. The trailer is configured to be hauled by an agricultural vehicle. The trailer comprises a chamber and a refrigeration cycle driving device. The chamber is configured to facilitate loading of the perishables. The refrigeration cycle driving device is configured to drive a refrigeration cycle for withdrawing heat from the chamber. The refrigeration cycle driving device is configured to be driven by power supplied from the agricultural vehicle as well as by an external electrical power supply.
The refrigeration cycle driving device is configured to be driven in a haulage mode as well as in a stationary mode. In a haulage mode, the refrigeration cycle driving device is configured to be driven by (a) pressurized hydraulic fluid

pressurized by operating the engine of the agricultural vehicle, (b) an electrical power supply from the agricultural vehicle, OR (c) a powertrain output shaft of the agricultural vehicle. In a stationary mode, the refrigeration cycle driving device is configured to be driven by (a) an external electrical power supply, (b) pressurized hydraulic fluid pressurized by operating the engine of the agricultural vehicle, OR (c) a powertrain output shaft of the agricultural vehicle.
In an embodiment, the trailer comprises a hydraulic motor and an electric motor. The hydraulic motor is configured to be driven by the pressurized hydraulic fluid. The electric motor is configured to be driven by the external electrical power supply. The refrigeration cycle driving device is configured to be driven by the hydraulic motor and/or the electric motor. In an embodiment, the electric motor is a single-phase electric motor.
In another embodiment, the trailer comprises an electric motor. The electric motor is configured to be driven by the electrical power supply from the agricultural vehicle when the agricultural vehicle is in a haulage mode, and by the external electrical power supply when the agricultural vehicle is in a stationary mode. The refrigeration cycle driving device is configured to be driven by the electric motor. In an embodiment, the electric motor is a DC motor. The trailer comprises a converter for converting the external electrical power supply to a DC power supply.
In an embodiment, the trailer comprises a blower configured to be driven by the electrical power supply from the agricultural vehicle and configured to circulate cooled air into the chamber.
In an embodiment, the electrical power supply from the agricultural vehicle is a DC power supply. Preferably, in this embodiment, the electrical power supply from the agricultural vehicle is received from a battery. In another embodiment, the electrical power supply from the agricultural vehicle is received from an alternator.

In an embodiment, the trailer comprises a control unit configured to control operation of the refrigeration cycle driving device and the blower. Preferably, the control unit is configured to control speed of rotation of the refrigeration cycle driving device and the blower.
5 In an embodiment, the refrigeration cycle is a vapour compression cycle. The
refrigeration cycle driving device is a compressor.
In an embodiment, the pressurized hydraulic fluid is supplied through a tapping
port on a hydraulic circuit of the agricultural vehicle. In another embodiment, the
trailer comprises a hydraulic pump coupled to a powertrain output shaft of the
10 agricultural vehicle, wherein the pressurized hydraulic fluid is supplied through
the outlet of the hydraulic pump.
The present disclosure also envisages a method for operating a trailer for refrigerated storage and mobility of perishables.
BRIEF DESCRIPTION OF ACCOMPANYING DRAWING
15 A trailer for refrigerated storage and mobility of perishables of the present
disclosure will now be described with the help of the accompanying drawing, in which:
Figure 1 illustrates a schematic block diagram of a trailer for refrigerated storage and mobility of the present disclosure;
20 Figure 2 illustrates a schematic block diagram of a trailer for refrigerated storage
and mobility according to an embodiment of the present disclosure;
Figure 3 illustrates a schematic diagram of a trailer for refrigerated storage and mobility of Figure 1;
Figure 4 illustrates a schematic diagram of a trailer for refrigerated storage and
25 mobility of Figure 2; and
6

Figure 5 illustrates a hydraulic tapping port and a powertrain output shaft of an agricultural vehicle.
LIST OF REFERENCE NUMERALS

1000 trailer for refrigerated storage and mobility of the present disclosure
100 chamber
110 refrigeration cycle driving device
120 blower
200 hydraulic motor
300 electric motor
310 alternator
320 battery
400 hydraulic tapping port
500 powertrain output shaft
DETAILED DESCRIPTION
15 Embodiments, of the present disclosure, will now be described with reference to
the accompanying drawing.
Embodiments are provided so as to thoroughly and fully convey the scope of the
present disclosure to the person skilled in the art. Numerous details are set forth,
relating to specific components, and methods, to provide a complete
20 understanding of embodiments of the present disclosure. It will be apparent to the
person skilled in the art that the details provided in the embodiments should not be construed to limit the scope of the present disclosure. In some embodiments, well-known processes, well-known apparatus structures, and well-known techniques are not described in detail.
7

The terminology used, in the present disclosure, is only for the purpose of
explaining a particular embodiment and such terminology shall not be considered
to limit the scope of the present disclosure. As used in the present disclosure, the
forms “a”, “an” and “the” may be intended to include the plural forms as well,
5 unless the context clearly suggests otherwise. The terms “comprises”,
“comprising”, “including” and “having” are open-ended transitional phrases and therefore specify the presence of stated features, elements, modules, units and/or components, but do not forbid the presence or addition of one or more other features, elements, components, and/or groups thereof.
10 When an element is referred to as being “mounted on”, “engaged to”, “connected
to” or „coupled to” another element, it may be directly on, engaged, connected or coupled to the other element. As used herein, the term “and/or” includes any and all combinations of one or more of the associated listed elements.
The terms first, second, third, etc., should not be construed to limit the scope of
15 the present disclosure as the aforementioned terms may be only used to
distinguish one element, component, region, layer or section from another component, region, layer or section. Terms such as first, second, third etc., when used herein do not imply a specific sequence or order unless clearly suggested by the present disclosure.
20 Terms such as “inner”, “outer”, “beneath”, “below”, “lower”, “above”, “upper”
and the like, may be used in the present disclosure to describe relationships between different elements as depicted from the figures.
The present disclosure envisages a trailer 1000 for refrigerated storage and
mobility of the present disclosure for perishables, as illustrated in Figure 1 and
25 Figure 3, wherein the perishables are loaded in the trailer for haulage by an
agricultural vehicle. The trailer is configured to be detachably coupled to an agricultural vehicle, by conventionally known means such as a hook or a similar coupling. The dotted-and-dashed lines indicate flow of hydraulic power and the continuous lines indicate flow of mechanical power. The trailer 1000 comprises a
8

chamber 100 and a refrigeration cycle driving device 110. The chamber 100 is
configured to facilitate loading of the perishables. The refrigeration cycle driving
device 110 is configured to drive a refrigeration cycle for withdrawing heat from
the chamber 100. The refrigeration cycle driving device 110 is configured to be
5 driven by power supplied from the agricultural vehicle as well as by an external
electrical power supply. The refrigeration cycle driving device 110 is configured
to be driven in a haulage mode as well as in a stationary mode. In a haulage mode,
the refrigeration cycle driving device 110 is configured to be driven by: (a)
pressurized hydraulic fluid pressurized by operating the engine of the agricultural
10 vehicle OR (b) an electrical power supply from the agricultural vehicle OR (c) a
powertrain output shaft of the agricultural vehicle. In a stationary mode, the refrigeration cycle driving device 110 is configured to be driven by an external electrical power supply.
In an embodiment, the trailer 1000 comprises a hydraulic motor 200 and an
15 electric motor 300. The hydraulic motor 200 is configured to be driven by the
pressurized hydraulic fluid. In one embodiment, the hydraulic fluid is obtained
from a tapping port 400 on the hydraulic circuit of the agricultural vehicle. The
hydraulic circuit primarily drives the hitch mechanism. The hydraulic fluid is
pressurized by driving the engine of the agricultural vehicle. In another
20 embodiment, when the pressure obtained at the tapping port 400 the hydraulic
circuit fluid is insufficient to drive the refrigeration cycle driving device 110 of
the trailer 1000, the hydraulic motor 200 is configured to be driven a first pump
(not shown in Figures) which is in turn driven by the powertrain output shaft 500
of the agricultural vehicle shown in Figure 5. Further, the electric motor 300 is
25 configured to be driven by the external electrical power supply. In an
embodiment, the external electrical power supply is a single-phase supply. Thus, the electric motor 300 is a single-phase electric motor. In one embodiment, the electric motor 300 is a single-phase induction motor. In another embodiment, the electric motor 300 is a single-phase synchronous motor. The refrigeration cycle
9

driving device 110 is configured to be driven by the hydraulic motor 200 and/or the electric motor 300.
In another embodiment, as illustrated in Figure 2 and Figure 4, the refrigeration
cycle driving device 110 of the trailer 1000 is configured to be driven an electric
5 motor 300. The electric motor 300 is configured to be driven by the electrical
power supply from the agricultural vehicle when the agricultural vehicle is in a haulage mode and by the external electrical power supply when the agricultural vehicle is in a stationary mode. In an embodiment, the electric motor 300 is a DC motor. In an embodiment, the electrical power supply from the agricultural
10 vehicle is a DC power supply and is received from an outlet of a battery 320. The
battery 320 is the battery that is configured to drive the electrical and electronic components of the agricultural vehicle. In another embodiment, the battery 320 is a dedicated battery for the trailer 1000. The battery 320 is configured to be charged by an alternator 310. For driving the DC motor 300 on external electrical
15 power supply, which is most likely to be an AC electrical power supply, the trailer
1000 is provided with an AC-to-DC convertor 340. In another embodiment, the electrical power supply is received directly from the outlet of the alternator 310, and the AC-to-DC convertor 340 comprising a rectifier-and-regulator circuit is configured to convert the power supply from the alternator 310 to a DC power
20 supply.
In an embodiment, the agricultural vehicle is a tractor.
The pressurized hydraulic fluid is provided to the hydraulic motor 200 using
hydraulic hoses (not shown in Figures). The hydraulic hoses are typically made of
rubber. The mechanical coupling between the hydraulic motor 200 and the
25 refrigeration cycle driving device 110 is provided using a transmission mechanism
selected from the group consisting of a belt drive, a chain drive, a gear set and the like. Figures 3 and 4 show use of a belt drive for coupling the electric motor 300 and the refrigeration cycle driving device 110.
10

A hydraulic fluid is stored in a reservoir in the agricultural vehicle and is pumped
for various purposes such as implement lifting, steering, braking, and similar
tasks, whichever applicable. A second pump for pressurizing the hydraulic fluid is
driven by the output mechanical power of the engine. The pump is selected from
5 the group consisting of a gear pump, a rotary pump, a vane pump, an axial piston
pump, a bent-axial piston pump and the like. The pressurized hydraulic fluid is supplied through a tapping port 400 shown in Figure 5. The tapping port 400 is coupled to the pressure input port of the hydraulic motor 200 of the trailer 1000 using a quick release coupling.
10 In an embodiment, the trailer 1000 comprises a blower 120 configured to circulate
the cooled air into the chamber 100, as illustrated in Figures 3 and 4. The blower 120 is configured to be driven by the battery 320.
In an embodiment, the trailer 1000 comprises a control unit which is configured to control the operation of the refrigeration cycle driving device 200. In a preferred
15 embodiment, the control unit is configured to control speed of rotation of the
refrigeration cycle driving device 200. By varying the speed of rotation of the refrigeration cycle driving device 200, the control unit varies the rate of refrigeration inside the chamber 100. In another embodiment, the control unit is configured to control the operation of the blower 120. The trailer 1000 further
20 comprises an input unit which is communicatively coupled to the control unit. The
user of the trailer 1000 provides temperature control parameters including the temperature inside the chamber 100, the rate of cooling and so on. Moreover, the trailer 1000 comprises a temperature sensor configured to sense temperature inside the chamber 100, generate a corresponding feedback signal and transmit the
25 signal to the control unit. The control unit controls the rate of refrigeration and the
temperature inside the chamber 100 and the like based on the parameters input by the user using the input unit and the feedback signal received from the temperature sensor. Therefore, the trailer 1000 of the present disclosure is able to control the temperature and the rate of refrigeration within the chamber 100 for
30 various purposes such as pre-cooling, prolonged storage, ripening and the like.
11

In an embodiment, the trailer 1000 employs a refrigeration cycle selected from the group consisting of a vapour compression cycle, a vapour absorption cycle, a vapour adsorption cycle, a gas cycle, an air cycle, a reverse Stirling cycle, a Gifford-McMahon cycle and a Joule-Thomson cycle.
5 The present disclosure also envisages a method for operating the trailer (1000) for
refrigerated storage and mobility of perishables.
In an embodiment, the method comprises:
i. loading the perishables in the chamber (100);
ii. hydraulically coupling the refrigeration cycle driving device (110)
10 to the hydraulic tapping port (400) on an agriculture vehicle;
iii. running the refrigeration cycle by driving the refrigeration cycle driving device (110) by generating hydraulic pressure by running the engine of the agricultural vehicle for withdrawing heat from the chamber (100).
15 In another embodiment, the method for operating the trailer (1000) for
refrigerated storage and mobility of perishables comprises:
i. loading the perishables in the chamber (100);
ii. coupling a refrigeration cycle driving device (110) to a powertrain output shaft of an agriculture vehicle through a hydraulic pump;
20 iii. running the refrigeration cycle by driving the refrigeration cycle
driving device through the powertrain output shaft by running the engine of the agricultural vehicle for withdrawing heat from the chamber.
In yet another embodiment, the method for operating a trailer for refrigerated
25 storage and mobility of perishables comprises:
i. loading the perishables in a chamber of the trailer;
12

ii. mechanically coupling a refrigeration cycle driving device of the trailer to an electric motor on the trailer;
iii. electrically coupling the electric motor to an external electrical power supply;
5 iv. running the refrigeration cycle by driving the refrigeration cycle
driving device through the electric motor by supplying power from the external electrical power supply for withdrawing heat from the chamber.
In still another embodiment, the method for operating a trailer for refrigerated
10 storage and mobility of perishables comprises:
i. loading the perishables in a chamber of the trailer;
ii. mechanically coupling a refrigeration cycle driving device of the trailer to an electric motor on the trailer;
iii. electrically coupling the electric motor to a battery on the trailer;
15 iv. running the refrigeration cycle by driving the refrigeration cycle
driving device through the electric motor by supplying power from the battery for withdrawing heat from the chamber.
Typically, the trailer 1000 of the present disclosure for refrigerated storage and mobility of perishables provides a chamber 100 of a capacity of in range of 3 to 5
20 metric ton but not limited to the given range for refrigerating perishables which
can be vegetables, fruits, poultry, meat and/or fish. The trailer of the present disclosure is able to achieve a refrigeration temperature of -20°C inside the chamber provided with an agricultural vehicle. Moreover, the trailer of the present disclosure allows performing a pre-cooling cycle which is required for perishables
25 such as tomatoes, capsicum and the like which would otherwise start degrading
soon after plucking. Since the trailer can be detachably coupled to an agricultural vehicle such as a tractor, which generates the traction required for moving on
13

uneven terrain of agricultural fields, the trailer allows transportation of the farm produce to be immediately initiated without needing to allot separate time for pre-cooling. Thus, valuable time of the cultivators is saved. Further, the farmer can refrigerate the farm produce until the best price is available in the market or 5 conditionally, upto the refrigerated shelf life of the produce, and not succumb to the need to sell the produce fearing degradation during storage. The trailer of the present disclosure allows the refrigeration to be done irrespective of whether the agricultural vehicle such as a tractor is moving or is stationary. Subject to availability of an alternating electric single-phase mains supply, the farmer can 10 easily continue refrigeration of the produce loaded in the chamber of the tractor when the tractor is parked somewhere within the journey to the market or even within the market. Also, by providing a chamber and a hydraulic motor, the trailer of the present disclosure for refrigerated storage and mobility of perishables can be detachably coupled to an existing tractor or a similar agricultural vehicle.
15 The foregoing description of the embodiments has been provided for purposes of illustration and not intended to limit the scope of the present disclosure. Individual components of a particular embodiment are generally not limited to that particular embodiment, but, are interchangeable. Such variations are not to be regarded as a departure from the present disclosure, and all such modifications are considered to
20 be within the scope of the present disclosure.
TECHNICAL ADVANCEMENTS
The present disclosure described hereinabove has several technical advantages including, but not limited to, the realization of a trailer for refrigerated storage and mobility of perishables, which:
25 • can be operated when the agricultural vehicle to which the trailer is
coupled is moving as well as when the agricultural vehicle is stationary;
• allows refrigeration of perishables over a wide range of storage temperatures; and
14

• can be detachably coupled to an existing agricultural vehicle such as a tractor.
The foregoing disclosure has been described with reference to the accompanying embodiments which do not limit the scope and ambit of the disclosure. The 5 description provided is purely by way of example and illustration.
The embodiments herein and the various features and advantageous details thereof are explained with reference to the non-limiting embodiments in the following description. Descriptions of well-known components and processing techniques are omitted so as to not unnecessarily obscure the embodiments herein. The 10 examples used herein are intended merely to facilitate an understanding of ways in which the embodiments herein may be practiced and to further enable those of skill in the art to practice the embodiments herein. Accordingly, the examples should not be construed as limiting the scope of the embodiments herein.
The foregoing description of the specific embodiments so fully reveal the general 15 nature of the embodiments herein that others can, by applying current knowledge, readily modify and/or adapt for various applications such specific embodiments 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 embodiments. It is to be understood that 20 the phraseology or terminology employed herein is for the purpose of description and not of limitation. Therefore, while the embodiments herein have been described in terms of preferred embodiments, those skilled in the art will recognize that the embodiments herein can be practiced with modification within the spirit and scope of the embodiments as described herein.
25 Any discussion of documents, acts, materials, devices, articles or the like that has been included in this specification is solely for the purpose of providing a context for the disclosure. It is not to be taken as an admission that any or all of these matters form a part of the prior art base or were common general knowledge in the
15

field relevant to the disclosure as it existed anywhere before the priority date of this application.
While considerable emphasis has been placed herein on the components and component parts of the preferred embodiments, it will be appreciated that many embodiments can be made and that many changes can be made in the preferred embodiments without departing from the principles of the disclosure. These and other changes in the preferred embodiment as well as other embodiments of the disclosure will be apparent to those skilled in the art from the disclosure herein, whereby it is to be distinctly understood that the foregoing descriptive matter is to be interpreted merely as illustrative of the disclosure and not as a limitation.

WE CLAIM:

A trailer (1000) for refrigerated storage and mobility of perishables, said trailer being configured to be hauled by an agricultural vehicle, said trailer (1000) comprising:
• a chamber (100) configured to facilitate loading of the perishables;
• a refrigeration cycle driving device (110) configured to drive a refrigeration cycle for withdrawing heat from said chamber (100);
wherein said refrigeration cycle driving device (110) is configured to be driven by power supplied from the agricultural vehicle as well as by an external electrical power supply.
The trailer (1000) as claimed in claim 1, wherein said refrigeration cycle driving device (110) is configured to be driven:
in a haulage mode, by one of the following:
a) pressurized hydraulic fluid pressurized by operating the engine of the agricultural vehicle;
b) an electrical power supply from the agricultural vehicle; and
c) a powertrain output shaft of the agricultural vehicle; and
in a stationary mode, by one of the following
a) an external electrical power supply;
b) pressurized hydraulic fluid pressurized by operating the engine of the agricultural vehicle; and
c) a powertrain output shaft of the agricultural vehicle.
The trailer (1000) as claimed in claim 1, wherein said trailer (1000) comprises:

• a hydraulic motor (200) configured to be driven by said pressurized hydraulic fluid; and
• an electric motor (300) configured to be driven by said external electrical power supply; wherein
said refrigeration cycle driving device (110) is configured to be driven by said hydraulic motor (200) and/or said electric motor (300).
The trailer (1000) as claimed in claim 3, wherein said electric motor (300) is a single-phase electric motor.
The trailer (1000) as claimed in claim 3, wherein said trailer (1000) comprises an electric motor (300) configured to be driven by said electrical power supply from the agricultural vehicle when the agricultural vehicle is in a haulage mode, and by the external electrical power supply when the agricultural vehicle is in a stationary mode, wherein said refrigeration cycle driving device (110) is configured to be driven by said electric motor (300).
The trailer (1000) as claimed in claim 5, wherein said electric motor (300) is a DC motor and said trailer (1000) comprises a convertor (340) for converting the external electrical power supply to a DC power supply.
The trailer (1000) as claimed in claim 1, wherein said trailer (1000) comprises a blower (120) configured to be driven by said electrical power supply from the agricultural vehicle and configured to circulate cooled air into said chamber (100).
The trailer (1000) as claimed in claim 1, wherein said electrical power supply from the agricultural vehicle is a DC power supply.
The trailer (1000) as claimed in claim 7, wherein said electrical power supply from the agricultural vehicle is received from a battery.

The trailer (1000) as claimed in claim 7, wherein said electrical power supply from the agricultural vehicle is received from an alternator.
The trailer (1000) as claimed in claim 1, wherein said external electrical power supply is a single-phase AC power supply.
The trailer (1000) as claimed in claim 7, wherein said trailer (1000) comprises a control unit configured to control operation of said refrigeration cycle driving device (200) and said blower (120).
The trailer (1000) as claimed in claim 12, wherein said control unit is configured to control speed of rotation of said refrigeration cycle driving device (110) and said blower (120).
The trailer (1000) as claimed in claim 1, wherein the refrigeration cycle is a vapour compression cycle.
The trailer (1000) as claimed in claim 14, wherein said refrigeration cycle driving device (110) is a compressor.
The trailer (1000) as claimed in claim 1, wherein said pressurized hydraulic fluid is supplied through a tapping port (400) on a hydraulic circuit of said agricultural vehicle.
The trailer (1000) as claimed in claim 1, wherein said trailer (1000) comprises a hydraulic pump coupled to a powertrain output shaft (500) of the agricultural vehicle, and wherein said pressurized hydraulic fluid is supplied through the outlet of said hydraulic pump.
A method for operating a trailer (1000) for refrigerated storage and mobility of perishables, said method comprising:
i. loading the perishables in a chamber (100) of said trailer (1000);

ii. hydraulically coupling a refrigeration cycle driving device (110) of said trailer (1000) to a hydraulic tapping port (400) on an agriculture vehicle;
iii. running the refrigeration cycle by driving said refrigeration cycle driving device (110) by generating hydraulic pressure by running the engine of the agricultural vehicle for withdrawing heat from said chamber (100).
A method for operating a trailer (1000) for refrigerated storage and mobility of perishables, said method comprising:
i. loading the perishables in a chamber (100) of said trailer (1000);
ii. coupling a refrigeration cycle driving device (110) of said trailer (1000) to a powertrain output shaft (500) of an agriculture vehicle through a hydraulic pump;
iii. running the refrigeration cycle by driving said refrigeration cycle driving device (110) through said powertrain output shaft (500) by running the engine of the agricultural vehicle for withdrawing heat from said chamber (100).
A method for operating a trailer (1000) for refrigerated storage and mobility of perishables, said method comprising:
i. loading the perishables in a chamber (100) of said trailer (1000);
ii. mechanically coupling a refrigeration cycle driving device (110) of said trailer (1000) to an electric motor (300) on said trailer (1000);
iii. electrically coupling said electric motor (300) to an external electrical power supply;
iv. running the refrigeration cycle by driving said refrigeration cycle driving device (110) through said electric motor (300) by

supplying power from the external electrical power supply for withdrawing heat from said chamber (100).
, A method for operating a trailer (1000) for refrigerated storage and mobility of perishables, said method comprising:
i. loading the perishables in a chamber (100) of said trailer (1000);
ii. mechanically coupling a refrigeration cycle driving device (110) of said trailer (1000) to an electric motor (300) on said trailer (1000);
iii. electrically coupling said electric motor (300) to a battery (320) on said trailer (1000);
iv. running the refrigeration cycle by driving said refrigeration cycle driving device (110) through said electric motor (300) by supplying power from said battery (320) for withdrawing heat from said chamber (100).