Abstract: A variable pitch fan system for an agricultural machine includes an engine, a fan, a pulley assembly and a controller. The engine powers the agricultural machine, including by driving rotation of a drive wheel of the pulley assembly. The fan includes a plurality of blades having variable pitch. The pulley assembly includes the drive wheel, a belt that is rotationally driven by the drive wheel, and a fan wheel that is rotationally driven by the belt to drive rotation of the fan. The controller receives one or more signals from at least one of a belt load sensor and fan sensor indicative of a load on the belt and a speed of the fan, respectively. The controller also receives one or more signals from at least one engine sensor indicative of a speed of the engine. The controller assesses variable pitch fan system failure based on the received signals.

Abstract: A variable pitch fan system for an agricultural machine includes an engine, a fan, a pulley assembly and a controller. The engine powers the agricultural machine, including by driving rotation of a drive wheel of the pulley assembly. The fan includes a plurality of blades having variable pitch. The pulley assembly includes the drive wheel, a belt that is rotationally driven by the drive wheel, and a fan wheel that is rotationally driven by the belt to drive rotation of the fan. The controller receives one or more signals from at least one of a belt load sensor and fan sensor indicative of a load on the belt and a speed of the fan, respectively. The controller also receives one or more signals from at least one engine sensor indicative of a speed of the engine. The controller assesses variable pitch fan system failure based on the received signals.

Abstract: An air management assembly for a work machine, the air management assembly having a cooling orifice defined in a panel, a cooling fan generating a cooling airflow through the cooling orifice to a cooling package, at least one fixed screen positioned along an intake orifice, and a first baffle positioned at least partially between the cooling orifice and the intake orifice. Wherein, the first baffle directs the cooling airflow partially across the fixed screen to clear the fixed screen of debris.

Abstract: A cooling system may include a skeleton frame having a central opening to receive and frame at least one cooling core. The skeleton frame has an interior to contain at least one conduit through which at least one fluid to be cooled may flow to the at least one cooling core. The cooling system may further include a skin wrapping over and about the skeleton frame to seal the interior of the skeleton frame.

Abstract: An air management assembly for a work machine, the air management assembly having a cooling orifice defined in a panel, a cooling fan generating a cooling airflow through the cooling orifice to a cooling package, at least one fixed screen positioned along an intake orifice, and a first baffle positioned at least partially between the cooling orifice and the intake orifice. Wherein, the first baffle directs the cooling airflow partially across the fixed screen to clear the fixed screen of debris.

Abstract: A cooling system may include a skeleton frame having a central opening to receive and frame at least one cooling core. The skeleton frame has an interior to contain at least one conduit through which at least one fluid to be cooled may flow to the at least one cooling core. The cooling system may further include a skin wrapping over and about the skeleton frame to seal the interior of the skeleton frame.

Abstract: A heat exchanger for a work vehicle is provided that comprises a tube layer (102) made of a plurality of elongate tubes (108) that are spaced apart by gaps (112) oriented parallel to each other in a first direction; a first fin layer (100) in the form of a corrugated sheet having a plurality of corrugations, wherein the plurality of corrugations of the first fin layer (100) facing the tube layer (102) define channels (106) for passing therethrough a fluid different from the first fluid; and a first fluid guide layer (200) formed of a planar sheet that extends across and encloses the plurality of corrugations of the first fin layer (100) over substantially an entire length of the plurality of corrugations.

Abstract: A diesel fuel supply circuit comprises a diesel engine (100); a fuel cooler (104); a fuel tank (102), and a valve (114). The valve (114) is operable to move the fuel cooler (104) from (1) a position within the circuit in which it cools fuel leaving the diesel engine (100) and going to the fuel tank (102) to (2) a position in which it cools fuel leaving the fuel tank (102) and going to the diesel engine (100) and vice versa.

Abstract: A diesel fuel supply circuit comprises a diesel engine (100); a fuel cooler (104); a fuel tank (102), and a valve (114). The valve (114) is operable to move the fuel cooler (104) from (1) a position within the circuit in which it cools fuel leaving the diesel engine (100) and going to the fuel tank (102) to (2) a position in which it cools fuel leaving the fuel tank (102) and going to the diesel engine (100) and vice versa.

Abstract: A diesel fuel feed system comprises a diesel engine (100); a fuel cooler (102); a fuel tank (106); and a makeup valve (104).

Abstract: An agricultural combine includes a supporting structure. A work assembly is coupled to the supporting structure. The work assembly has a plurality of components to assist in the performing of crop processing operations. The work assembly is configured to define an air stream path. The work assembly has at least one rotary component that generates an air stream that flows through the air stream path to aid in crop processing in the work assembly. A fluid system is configured to circulate a fluid. The fluid system includes a fluid cooler that is positioned at a location in the air stream path to provide cooling of the fluid.

Abstract: An air filter arrangement for an agricultural combine located on a panel at a side wall of the agricultural combine. The air filter arrangement includes a rotary filter mounted for rotation at a first aperture, a scoop enclosing the rotary filter and blocking substantially all air flow to the rotary filter except at a scoop inlet disposed along an upper edge of the scoop above the rotary filter, and at least one stationary filter disposed to filter air passing through a second aperture in the panel, the stationary filter being located between an upper portion of the rotary filter and the scoop inlet.

Abstract: An agricultural combine includes a supporting structure. A work assembly is coupled to the supporting structure. The work assembly has a plurality of components to assist in the performing of crop processing operations. The work assembly is configured to define an air stream path. The work assembly has at least one rotary component that generates an air stream that flows through the air stream path to aid in crop processing in the work assembly. A fluid system is configured to circulate a fluid. The fluid system includes a fluid cooler that is positioned at a location in the air stream path to provide cooling of the fluid.