FORM 2
THE PATENTS ACT, 1970
(39 of 1970)
&
THE PATENTS RULES, 2003
COMPLETE SPECIFICATION
(See Section 10; rule 13)
“CONVEYING SYSTEM FOR A HARVESTER”
CNH Industrial (India) Pvt. Ltd. of the address: B1-207, Boomerang, Chandivali Farm Road, Near Chandivali Studio, Andheri (East) Mumbai – 400 072, India; Nationality:- India.
The following specification particularly describes the invention and the manner in
which it is to be performed:

CONVEYING SYSTEM FOR A HARVESTER
BACKGROUND
[0001] The present disclosure relates generally to a conveying system for a harvester.
[0002] Certain harvesters (e.g., cotton harvesters) include a harvesting assembly configured to receive crops from a field and to separate the crops into product (e.g., cotton) and crop residue (e.g., chaff, foliage, stems, etc.). The harvester may also include a conveying system configured to transport the product from the harvesting assembly to a basket for storage. For example, certain conveying systems include an air source (e.g., fan, blower, etc.) and multiple conduits configured to provide air from the air source to drum assemblies of the harvesting assembly. The air from the conduits coveys product from the drum assemblies to the basket via one or more chutes. Certain conveying systems include a plenum configured to distribute the air from the air source to the conduits. Plenums are typically large to provide sufficient space for coupling the conduits to outlet passages of the plenum. Unfortunately, such large plenums may not be used in harvesters with space constraints.
BRIEF DESCRIPTION
[0003] In one embodiment, a conveying system for a harvester includes a plenum having an inlet and multiple outlets. The outlets are formed in an outlet element, the outlet element includes a first portion forming a first outlet and a second outlet, the outlet element includes a second portion forming a third outlet and a fourth outlet, a first outlet passage extends from the first outlet, a second outlet passage extends from the second outlet, a third outlet passage extends from the third outlet, and a fourth outlet passage extends from the fourth outlet. In addition, the first and second portions of the outlet element are angled relative to one another such that the first and second outlet passages are angled away from the third and fourth outlet passages, the first outlet passage is

longer than the second outlet passage, the third outlet passage is longer than the fourth outlet passage, or a combination thereof.
DRAWINGS
[0004] These and other features, aspects, and advantages of the present disclosure will become better understood when the following detailed description is read with reference to the accompanying drawings in which like characters represent like parts throughout the drawings, wherein:
[0005] FIG. 1 is a perspective view of an embodiment of a harvester configured to harvest rows of a crop;
[0006] FIG. 2 is a perspective view of an embodiment of a conveying system that may be used within the harvester of FIG. 1;
[0007] FIG. 3 is a perspective view of a portion of the conveying system of FIG. 2, in which the conveying system includes an air source, a primary conduit, a plenum, and multiple secondary conduits;
[0008] FIG. 4 is a perspective view of the plenum of FIG. 3; and
[0009] FIG. 5 is a perspective view of the plenum of FIG. 3, in which a panel of the plenum is removed to expose an interior of the plenum.
DETAILED DESCRIPTION
[0010] One or more specific embodiments of the present disclosure will be described below. In an effort to provide a concise description of these embodiments, all features of an actual implementation may not be described in the specification. It should be appreciated that in the development of any such actual implementation, as in any engineering or design project, numerous implementation-specific decisions must be made

to achieve the developers’ specific goals, such as compliance with system-related and business-related constraints, which may vary from one implementation to another. Moreover, it should be appreciated that such a development effort might be complex and time consuming, but would nevertheless be a routine undertaking of design, fabrication, and manufacture for those of ordinary skill having the benefit of this disclosure.
[0011] When introducing elements of various embodiments of the present disclosure, the articles “a,” “an,” “the,” and “said” are intended to mean that there are one or more of the elements. The terms “comprising,” “including,” and “having” are intended to be inclusive and mean that there may be additional elements other than the listed elements.
[0012] FIG. 1 is a perspective view of an embodiment of a harvester 10 configured to harvest rows of a crop. To facilitate discussion, the harvester 10 and certain components of the harvester 10 may be described with reference to a longitudinal axis or direction 12, a vertical axis or direction 14, and a lateral axis or direction 16. As illustrated, the harvester 10 includes a harvesting assembly 18 having multiple drum assemblies 20. Each drum assembly 20 is configured to separate product (e.g., cotton or other harvested goods) from other agricultural materials (e.g., chaff, foliage, stems, debris) via one or more rotors. In the illustrated embodiment, the harvester 10 includes a conveying system 22 configured to transport the product from the harvesting assembly 18 to a basket assembly 24 via chutes 26. The basket assembly 24 includes a body 28 configured to rotate between the illustrated product-received position and a product-expelling position. The body 28 is configured to receive the product while in the product-receiving position, and the body 28 is configured to expel the product (e.g., to another container) while in the product-expelling position. In some embodiments, the other agricultural materials may be deposited onto the agricultural field beneath and/or behind the harvester 10.
[0013] As illustrated, the harvester 10 also includes a cabin 30 configured to house an operator. In the illustrated embodiment, one or more operator interfaces and/or input devices 32 (e.g., one or more switches, knob(s), light(s), display(s), a steering wheel, gear shift(s), lever(s), etc.) are disposed within the cabin 30. The one or more operator

interfaces and/or input devices 32 enable the operator to monitor and/or control various functions of the harvester 10, such as ground speed, steering angle, transmission ratio, operation of the heating, ventilation, and air-conditioning (HVAC) system, operation of the harvesting assembly 18, operation of the conveying system 22, operation of the basket assembly 24, or a combination thereof, among other functions of the harvester.
[0014] In the illustrated embodiment, the basket assembly 24 and the cabin 30 are supported on a frame 34 (e.g., harvester frame or chassis). Various other components (e.g., the harvesting assembly 18 and the conveying system 22) may be supported by and/or coupled to the frame 34 as well. In the illustrated embodiment, the frame 34 supports or includes a cover assembly 36 (e.g., cage assembly) that is configured to cover (e.g., surround) various components of the harvester, such as an engine, a transmission, the HVAC system, and a radiator, which are supported on the frame 34. In operation, the harvester 10 may be driven in a direction of travel 38 through the agricultural field using forward wheels 40 and rear wheels 42. While the harvester 10 includes forward and rearward wheels in the illustrated embodiment, in alternative embodiments, the harvester may include track assemblies configured to move the harvester along the agricultural field. In addition, while the illustrated harvester 10 includes two drum assemblies 20 in the illustrated embodiment, in alternative embodiments, the harvester may include any suitable number of drum assemblies, such as 1, 2, 3, 4, 5, 6, or more drum assemblies.
[0015] In certain embodiments, the conveying system 22 of the harvester includes a plenum configured to receive an airflow from an air source and to distribute the airflow to multiple conduits. The conduits are configured to provide respective airflows to the drum assemblies 20 of the harvesting assembly 18. The air from the conduits coveys product from the drum assemblies 20 to the basket 28 via the chutes 26. In certain embodiments, the plenum has an inlet configured to receive the airflow from the air source and multiple outlets configured to provide the airflow to the conduits. The outlets are formed in an outlet element, which includes a first portion (e.g., first substantially flat portion) having first and second outlets, and a second portion (e.g., second substantially

flat portion) having third and fourth outlets. In addition, a first outlet passages extends from the first outlet, a second outlet passage extends from the second outlet, a third outlet passage extends from the third outlet, and a fourth outlet passage extends from the fourth outlet. In certain embodiments, the first and second portions of the outlet element are angled relative to one another, such that the first and second outlet passages are angled away from the third and fourth outlet passages. Furthermore, in certain embodiments, the first outlet passage is longer than the second outlet passage, and/or the third outlet passage is longer than the fourth outlet passage. The orientation of the outlet passages and the variation in length of the outlet passages facilitate connection of the conduits to the respective outlet passages (e.g., via hose clamp connectors), while enabling the plenum to establish substantially equal airflows to the outlet passages/conduits.
[0016] FIG. 2 is a perspective view of an embodiment of a conveying system 22 that may be used within the harvester 10 of FIG. 1. In the illustrated embodiment, the conveying system 22 includes an air source 44 (e.g., fan, blower, etc.), a primary conduit 46 (e.g., intake passage), and a plenum 48. The air source 44 is configured to provide a flow of air (e.g., airflow) to the plenum 48 via the primary conduit 46. The plenum 48, in turn, is configured to distribute the airflow from the primary conduit 46 to multiple secondary conduits 50. Each secondary conduit 50 is configured to direct the airflow to a respective product-receiving portion of the drum assemblies 20. For example, each drum assembly 20 may include two rotors, and each rotor may be configured to separate the product from the crops and to output the product to a respective product-receiving portion of the drum assembly. The airflow from each secondary conduit 50 may direct the product from the respective product-receiving portion of the drum assembly to one of the chutes 26. For example, each chute may include two inlet passages, and each inlet passage may extend to a respective product-receiving portion of the respective drum assembly. The product may flow through the chutes 26 to the body 28 of the basket assembly 24, as discussed above.

[0017] While the illustrated conveying system 22 includes four secondary conduits 50 extending from the plenum 48, in alternative embodiments, the conveying system may include more or fewer secondary conduits (e.g., 1, 2, 3, 4, 5, 6, 7, 8, or more). For example, the number of secondary conduits may be equal to the number of rotors/product-receiving portions of the drum assemblies. However, in certain embodiments, multiple product-receiving portions may receive an airflow from a single secondary conduit, and/or a single product-receiving portion may receive airflows from multiple secondary conduits. Furthermore, while the conveying system 22 includes a single air source 44 and a single primary conduit 46 in the illustrated embodiment, in alternative embodiments, the conveying system may include multiple air sources and/or multiple primary conduits. For example, multiple primary conduits may extend from a single air source to multiple plenums, and/or multiple air sources may be fluidly coupled to a single primary conduit.
[0018] In the illustrated embodiment, the air source 44 is configured to be driven by a belt 52. The belt 52 may be coupled to a pulley that is driven to rotate by a motor of the harvester 10. Accordingly, positioning the air source 44 between the cab 30 and the body 28 of the basket assembly 24 may align a pulley of the air source 44 with the motor driven pulley. As a result, the air source 44, the primary conduit 46, and the plenum 48 may be positioned behind the cab 30 of the harvester 10 (e.g., relative to the direction of travel 38). Positioning the plenum behind the cab may limit the maximum extent of the plenum along the longitudinal axis 12 and/or along the lateral axis 16. Accordingly, as discussed in detail below, the plenum 48 may include angled outlet passages and/or variable length outlet passages to reduce the size of the plenum, while enabling the plenum to establish substantially equal airflows to the outlet passages/conduits.
[0019] FIG. 3 is a perspective view of a portion of the conveying system 22 of FIG. 2, in which the conveying system includes the air source 44, the primary conduit 46 (e.g., intake passage), the plenum 48, and multiple secondary conduits 50. In the illustrated embodiment, the air source 44 includes a pulley 54 configured to be driven by a belt.

The pulley 54 is coupled to an impeller blade 56, which is configured to receive air from an inlet 58 and to output the air through an outlet 60. While the illustrated air source 44 is configured to be driven by a pulley, in further embodiments, the air source may be driven by a chain, a separate motor (e.g., electric motor, pneumatic motor, hydraulic motor, engine, etc.), or any other suitable power source. Furthermore, while the illustrated air source 44 includes an impeller blade 56, in further embodiments, the air source may include another device (e.g., fan blade, etc.) configured to provide an airflow to the primary conduit.
[0020] As illustrated, the air source 44 is fluidly coupled to the primary conduit 46. Accordingly, air may flow from the outlet 60 of the air source 44 to an inlet 62 of the primary conduit 46. In the illustrated embodiment, the air source 44 is coupled to the primary conduit 46 by fasteners 64. However, in alternative embodiments, the air source may be coupled to the primary conduit by a welded connection or any other suitable type of connection. In the illustrated embodiment, the primary conduit 46 includes an outlet 66 configured to output the airflow from the air source 44 to the plenum 48 via an inlet 68 of the plenum 44. Accordingly, the primary conduit 46 is fluidly coupled to the plenum 48. In addition, the primary conduit 46 is mechanically coupled to the plenum 48 via fasteners 64. However, in alternative embodiments, the primary conduit may be coupled to the plenum by another suitable type of connection, such as a welded connection. The plenum 48 includes multiple outlets 70, and each outlet 70 is configured to direct the airflow from the air source 44 to a respective conduit 50.
[0021] As illustrated, a body 72 of the primary conduit 46 extends from the inlet 62 to the outlet 66. In the illustrated embodiment, the body 72 includes a curved portion 74 configured to angle the outlet 66 about 90 degrees (e.g., 85 degrees to 95 degrees, 87 degrees to 93 degrees, 89 degrees to 91 degrees, etc.) relative to the inlet 62. For example, the inlet 62 may receive the airflow substantially along the lateral axis 16, and the outlet 66 may output the airflow substantially along the vertical axis 14. However, in alternative embodiments, the inlet may receive the airflow substantially along another

suitable axis (e.g., the longitudinal axis or the vertical axis), and the outlet may output the airflow substantially along a further suitable axis (e.g., the longitudinal axis or the lateral axis). The curved portion 74 of the body 72 may enable the plenum 48 to be positioned proximate to the air source 44, thereby reducing the size of the conveying system 22 (e.g., as compared to a primary conduit having a straight body). However, in further embodiments, the curved portion of the body may be configured to orient the outlet at another suitable angle relative to the inlet (e.g., about 0 degrees to about 180 degrees, about 20 degrees to about 160 degrees, about 40 degrees to about 140 degrees, about 60 degrees to about 120 degrees, about 80 degrees to about 100 degrees, etc.). Furthermore, while the body of the primary conduit includes a single curved portion in the illustrated embodiment, in further embodiments, the body may include more or fewer curved portions (e.g., 0, 1, 2, 3, 4, 5, 6, or more). In addition, while the body of the primary conduit has a substantially square cross-section (e.g., within a plane perpendicular to the direction of the airflow), in further embodiments, the body of the primary conduit may have another suitable cross-sectional shape (e.g., circular, elliptical, hexagonal, etc.).
[0022] FIG. 4 is a perspective view of the plenum 48 of FIG. 3. As previously discussed, the plenum 48 includes an inlet 68 and multiple outlets 70. In the illustrated embodiment, the outlets 70 are formed in an outlet element 76, which includes a first substantially flat portion 78 and a second substantially flat portion 80. The first substantially flat portion 78 forms a first outlet 82 and a second outlet 84, and the second substantially flat portion 80 forms a third outlet 86 and a fourth outlet 88. In addition, a first outlet passage 90 extends from the first outlet 82, a second outlet passage 92 extends from the second outlet 84, a third outlet passage 94 extends from the third outlet 86, and a fourth outlet passage 96 extends from the fourth outlet 88. Each outlet passage is configured to couple to a corresponding secondary conduit, thereby providing the airflow from the air source to each product-receiving portion of the drum assemblies.
[0023] In the illustrated embodiment, the first and second substantially flat portions of the outlet element 76 are angled relative to one another, such that the first and second

outlet passages are angled away from the third and fourth outlet passages. The angle between the first and second substantially flat portions of the outlet element 76 may be selected to position a distal end 98 of the first outlet passage 90 a sufficient distance from a distal end 100 of the fourth outlet passage 96 and to position a distal end 102 of the second outlet passage 92 a sufficient distance from a distal end 104 of the third outlet passage 94 to enable connectors (e.g., hose clamp connectors, etc.) to couple each outlet passage to a respective secondary conduit. For example, the angle of the second substantially flat portion 80 relative to the first substantially flat portion 78 may be about 1 degree to about 90 degrees, about 5 degrees to about 60 degrees, about 5 degrees to about 30 degrees, or about 5 degrees to about 15 degrees. To couple a secondary conduit to a corresponding outlet passage, an end of the secondary conduit may be disposed about a portion of the outlet passage proximate to the distal end of the outlet passage. A connector (e.g., hose clamp connector, etc.) may be disposed about the secondary conduit and constricted, thereby urging the secondary conduit radially inward against the outlet passage and establishing a connection between the secondary conduit and the outlet passage. The orientation of the outlet passages may provide sufficient space for the connectors, thereby facilitating connection of the secondary conduits to the respective outlet passages.
[0024] In the illustrated embodiment, a first length 106 of the first outlet passage 90 (e.g., extent of the first outlet passage 90 between the first substantially flat portion 78 and the distal end 98 along a longitudinal axis 108 of the first outlet passage 90) is greater than a second length 110 of the second outlet passage 92 (e.g., extent of the second outlet passage 92 between the first substantially flat portion 78 and the distal end 102 along a longitudinal axis 112 of the second outlet passage 92). The difference in lengths may provide a sufficient distance between the distal end 98 of the first outlet passage 90 and the distal end 102 of the second outlet passage 92 to enable connectors (e.g., hose clamp connectors, etc.) to couple each outlet passage to a respective secondary conduit. Furthermore, in the illustrated embodiment, a third length 114 of the third outlet passage 94 (e.g., extent of the third outlet passage 94 between the second substantially flat portion

80 and the distal end 104 along a longitudinal axis 116 of the third outlet passage 94) is greater than a fourth length 118 of the fourth outlet passage 96 (e.g., extent of the fourth outlet passage 96 between the second substantially flat portion 80 and the distal end 100 along a longitudinal axis 120 of the fourth outlet passage 96). The difference in lengths may provide a sufficient distance between the distal end 104 of the third outlet passage 94 and the distal end 100 of the fourth outlet passage 96 to enable connectors (e.g., hose clamp connectors, etc.) to couple each outlet passage to a respective secondary conduit. In certain embodiments, each respective difference in length may be about 1 cm to about 30 cm, about 2 cm to about 20 cm, or about 5 cm to about 15 cm, for example.
[0025] In the illustrated embodiment, the first length 106 of the first outlet passage 90 is greater than the fourth length 118 of the fourth outlet passage 96. In addition, the third length 114 of the third outlet passage 94 is greater than the second length 110 of the second outlet passage 92. These differences in length may further facilitate coupling connectors to the respective outlet passages/secondary conduits.
[0026] Positioning the outlets of the plenum proximate to one another reduces the lateral and longitudinal extent of the plenum, thereby enabling the plenum to be positioned within dimensionally restricted regions of the harvester. In addition, positioning the outlets proximate to one another may establish substantially equal airflows to each of the outlet passages/secondary conduits. Furthermore, the orientation of the outlet passages and the variation in lengths of the outlet passages facilitate connection of the secondary conduits to the respective outlet passages (e.g., via hose clamp connectors). Accordingly, the illustrated plenum is both compact and includes accessible outlet passages.
[0027] While the illustrated embodiment includes an outlet element having two substantially flat angled portions, first and second outlet passages having different lengths, and third and fourth outlet passages having different lengths, in further embodiments, the plenum may include any combination of these features. For example, in certain embodiments, the plenum may include an outlet element having two

substantially flat portions that are not angled relative to one another (e.g., a substantially flat outlet element). In further embodiments, the plenum may include first and second outlet passages having substantially equal lengths, and/or third and fourth outlet passages having substantially equal lengths. Furthermore, in the illustrated embodiment, the first outlet passage 90 (e.g., the longitudinal axis 108 of the first outlet passage 90) extends substantially perpendicularly to the first substantially flat portion 78 of the outlet element 76 at the first outlet 82, the second outlet passage 92 (e.g., the longitudinal axis 112 of the second outlet passage 92) extends substantially perpendicularly to the first substantially flat portion 78 of the outlet element 76 at the second outlet 84, the third outlet passage 94 (e.g., the longitudinal axis 116 of the third outlet passage 94) extends substantially perpendicularly to the second substantially flat portion 80 of the outlet element 76 at the third outlet 86, and the fourth outlet passage 96 (e.g., the longitudinal axis 120 of the fourth outlet passage 96) extends substantially perpendicularly to the second substantially flat portion 80 of the outlet element 76 at the fourth outlet 88. However, in alternative embodiments, one or more of the outlet passages may be oriented at another suitable angle relative to the respective substantially flat portion. For example, in certain embodiments, the plenum may include an outlet element having two substantially flat portions that are not angled relative to one another (e.g., a substantially flat outlet element), and the outlet passages may be angled relative to the respective substantially flat portions, such that the first and second outlet passages are angled away from the third and fourth outlet passages.
[0028] In addition, while the first and second portions are substantially flat in the illustrated embodiment, in alternative embodiments, the first portion and/or the second portion may include multiple substantially flat sections or any other suitable configurations. For example, in certain embodiments, the first outlet may be formed within a first substantially flat section of the first portion, and the second outlet may be formed within a second substantially flat section of the first portion. In such embodiments, the first and second substantially flat sections may be angled relative to one another, such that the first and second outlet passages are angled away from one

other. In addition or alternatively, the third outlet may be formed within a first substantially flat section of the second portion, and the fourth outlet may be formed within a second substantially flat section of the second portion. In such embodiments, the first and second substantially flat sections may be angled relative to one another, such that the third and fourth outlet passages are angled away from one other. In further embodiments, the outlet element may include additional portions. For example, in certain embodiments (e.g., embodiments including six outlets and six outlet passages), the outlet element may include three portions (e.g., three substantially flat portions), each portion may be angled relative to another portion, and two outlets may be formed in each portion.
[0029] In the illustrated embodiment, a first cross-sectional area of the plenum 48 at the inlet 68 (e.g., cross-sectional area within a plane substantially perpendicular to the direction of airflow through the plenum) is less than a second cross-sectional area of the plenum 48 at the outlet element 76 (e.g., cross-sectional area within a plane substantially perpendicular to the direction of airflow through the plenum). The difference in cross-sectional areas may reduce the velocity of the airflow and increase the pressure of the airflow. However, in further embodiments, the cross-sectional area of the plenum at the inlet may be substantially equal to the cross-sectional area of the plenum at the outlet element, or the cross-sectional area of the plenum at the inlet may be greater than the cross-sectional area of the plenum at the outlet element.
[0030] FIG. 5 is a perspective view of the plenum 48 of FIG. 3, in which a panel of the plenum is removed to expose an interior 122 of the plenum 48. In the illustrated embodiment, the plenum 48 is formed from a first panel 124 extending from the inlet 68 to the outlet element 76, a second panel 126 extending from the inlet 68 to the outlet element 76, a third panel 128 extending from the inlet 60 to the outlet element 76, and a fourth panel (removed to show the interior 122) extending from the inlet 68 to the outlet element 76. As illustrated, the first and second panels are positioned opposite one another, and the third and fourth panels are positioned opposite one another, thereby

establishing the interior 122 of the plenum 48. In certain embodiments, the panels are coupled to one another by a suitable connection (e.g., a welded connection, fasteners, a folded joint, etc.). In the illustrated embodiment, the first and second panels each include a bent portion 130 to facilitate the interface between the respective panel and the outlet element 76. The panels may be coupled to the outlet element by any suitable connection (e.g., a welded connection, fasteners, a folded joint, etc.).
[0031] While the plenum includes four panels in the illustrated embodiment, in further embodiments, the plenum may include more or fewer panels (e.g., 1, 2, 3, 4, 5, 6, 7, 8, or more). For example, the plenum may include six panels that form a substantially hexagonal cross-section (e.g., within a plane substantially perpendicular to the direction of airflow through the plenum). In further embodiments, the plenum may include a single panel extending about the periphery of the plenum (e.g., forming a substantially circular cross-sectional shape).
[0032] As previously discussed, positioning the outlets of the plenum proximate to one another may establish substantially equal airflows to the outlet passages/secondary conduits. Accordingly, in the illustrated embodiment, the plenum 48 does not include a baffle or a diffuser within the interior 122 of the plenum 48. As such, the accumulation of product within the interior of the plenum is substantially reduced (e.g., as compared to a plenum having a baffle and/or a diffuser). As a result, the frequency of maintenance operations (e.g., cleaning operations) may be substantially reduced.
[0033] While only certain features have been illustrated and described herein, many modifications and changes will occur to those skilled in the art. It is, therefore, to be understood that the appended claims are intended to cover all such modifications and changes as fall within the true spirit of the disclosure.

CLAIMS:
1. A conveying system for a harvester, comprising:
a plenum having an inlet and a plurality of outlets, wherein the plurality of outlets are formed in an outlet element, the outlet element includes a first portion forming a first outlet and a second outlet of the plurality of outlets, the outlet element includes a second portion forming a third outlet and a fourth outlet of the plurality of outlets, a first outlet passage extends from the first outlet, a second outlet passage extends from the second outlet, a third outlet passage extends from the third outlet, and a fourth outlet passage extends from the fourth outlet;
wherein the first and second portions of the outlet element are angled relative to one another such that the first and second outlet passages are angled away from the third and fourth outlet passages, the first outlet passage is longer than the second outlet passage, the third outlet passage is longer than the fourth outlet passage, or a combination thereof.
2. The conveying system of claim 1, wherein the plenum does not include a baffle or a diffuser within an interior of the plenum.
3. The conveying system of claim 1, wherein the first outlet passage extends substantially perpendicularly to the first portion of the outlet element at the first outlet, the second outlet passage extends substantially perpendicularly to the first portion of the outlet element at the second outlet, the third outlet passage extends substantially perpendicularly to the second portion of the outlet element at the third outlet, and the fourth outlet passage extends substantially perpendicularly to the second portion of the outlet element at the fourth outlet.
4. The conveying system of claim 1, wherein a first cross-sectional area of the plenum at the inlet is less than a second cross-sectional area of the plenum at the outlet element.

5. The conveying system of claim 1, wherein the plenum comprises a first
panel extending from the inlet to the outlet element, a second panel extending from the
inlet to the outlet element, a third panel extending from the inlet to the outlet element, and
a fourth panel extending from the inlet to the outlet element; and
wherein the first and second panels are positioned opposite one another, and the third and fourth panels are positioned opposite one another.
6. The conveying system of claim 5, wherein the first and second panels each include a bent portion proximate to the outlet element.
7. The conveying system of claim 1, comprising an intake passage extending to the inlet of the plenum.
8. The conveying system of claim 7, wherein the intake passage has an inlet and an outlet, the inlet is configured to receive air from an air source, the outlet is configured to provide the air to the inlet of the plenum, and a body of the intake passage includes a curved portion configured to angle the outlet about 90 degrees relative to the inlet.
9. The conveying system of claim 1, comprising an air source configured to provide an airflow to the inlet of the plenum.
10. The conveying system of claim 1, wherein the air source and the plenum are configured to be positioned behind a cab of the harvester.

[0034]