Abstract: An engine enclosure (100, 200) for an agricultural work vehicle has a plurality of walls (114, 210, 216, 218, 230) that surround an internal combustion engine (102, 202) and a fan (122, 236) coupled to an air inlet (120, 238) in the plurality of walls for maintaining the inside of the engine enclosure (100, 200) at a pressure slightly higher than atmospheric pressure.

Abstract: A two stage cooled EGR system for a turbocharged internal combustion engine with an intake air charge air cooler. The first EGR cooler is a liquid-to-air cooler and the second, low temperature EGR cooler, is an air-to-air cooler combining with the gas flow downstream of the intake air cooler. The system bypasses EGR flow through the low temperature EGR cooler during certain engine conditions such as low engine coolant temperature and a check valve allows a limited portion of un-cooled, pressurized intake air to be passed through the low temperature EGR cooler for scavenging of any residual moisture and ultimate consumption by the engine.

Abstract: A method of regulating coolant pump inlet pressure of an internal combustion engine, the method including the steps of producing pressurized air by way of a mechanism and directing a portion of the pressurized air coming from the mechanism to a coolant system of the internal combustion engine.

Abstract: An agricultural harvester includes a primary power unit which is couplable with at least one primary load. The at least one primary load includes a threshing system load. An auxiliary power unit is mechanically independent from the primary power unit, and is couplable with at least one biomass processor, independent from the threshing system load.

Abstract: A work machine includes a primary power unit having a rated primary output. The primary power unit is couplable with at least one primary load, including a propulsion load. An auxiliary power unit is mechanically independent from the primary power unit, and has a rated auxiliary output which is smaller than the primary output. The auxiliary power unit is couplable with at least one external load, including an operator initiated load. At least one electrical processing circuit is configured for selectively coupling the primary power unit with one or more primary loads, and for selectively coupling the auxiliary power unit with one or more external loads.

Abstract: A two stage cooled EGR system for a turbocharged internal combustion engine with an intake air charge air cooler. The first EGR cooler is a liquid-to-air cooler and the second, low temperature EGR cooler, is an air-to-air cooler combining with the gas flow downstream of the intake air cooler. The system bypasses EGR flow through the low temperature EGR cooler during certain engine conditions such as low engine coolant temperature and a check valve allows a limited portion of un-cooled, pressurized intake air to be passed through the low temperature EGR cooler for scavenging of any residual moisture and ultimate consumption by the engine.

Abstract: An agricultural harvester includes a first power unit having a first rated output. The first power unit is couplable with a first primary load, including a threshing system load. A second power unit has a second rated output. The second power unit is couplable with a second primary load, including a propulsion load. A first motor/generator is mechanically coupled with the first power unit, and a second motor/generator is mechanically coupled with the second power unit. The second motor/generator is configured to electrically drive at least one external load. The second motor/generator and the first motor/generator are electrically coupled together.

Abstract: An agricultural combine for supporting an agricultural header and carrying that agricultural header to a field to harvest a crop. The combine includes a chassis, front and rear drive wheels, a hydraulic motor, a device for sensing and a controller. The front and rear drive wheels support the chassis. The hydraulic motor is drivingly coupled to the front wheels. The device for sensing senses a presence of a header mounted to the combine. The controller is configured to monitor the device for sensing and to change the specific displacement of the hydraulic motor dependent upon the presence of the agricultural header.

Abstract: An agricultural combine for supporting an agricultural header and carrying that agricultural header to a field to harvest a crop. The combine includes a chassis, front and rear drive wheels, a hydraulic motor, a device for sensing and a controller. The front and rear drive wheels support the chassis. The hydraulic motor is drivingly coupled to the front wheels. The device for sensing senses a presence of a header mounted to the combine. The controller is configured to monitor the device for sensing and to change the specific displacement of the hydraulic motor dependent upon the presence of the agricultural header.

Abstract: An agricultural harvester includes a first power unit having a first rated output. The first power unit is couplable with a first primary load, including a threshing system load. A second power unit has a second rated output. The second power unit is couplable with a second primary load, including a propulsion load. A first motor/generator is mechanically coupled with the first power unit, and a second motor/generator is mechanically coupled with the second power unit. The second motor/generator is configured to electrically drive at least one external load. The second motor/generator and the first motor/generator are electrically coupled together.

Abstract: An agricultural harvester includes a primary power unit which is couplable with at least one primary load. The at least one primary load includes a threshing system load. An auxiliary power unit is mechanically independent from the primary power unit, and is couplable with at least one biomass processor, independent from the threshing system load.

Abstract: A work machine includes a primary power unit having a rated primary output. The primary power unit is couplable with at least one primary load, including a propulsion load. An auxiliary power unit is mechanically independent from the primary power unit, and has a rated auxiliary output which is smaller than the primary output. The auxiliary power unit is couplable with at least one external load, including an operator initiated load. At least one electrical processing circuit is configured for selectively coupling the primary power unit with one or more primary loads, and for selectively coupling the auxiliary power unit with one or more external loads.

Abstract: An exhaust gas recirculation (EGR) system is provided for an internal combustion engine having a combustion air intake circuit and an exhaust circuit for communicating engine exhaust to the environment. The EGR system includes an air-to-gas EGR cooler, an air inlet line communicating cooling inlet air to the EGR cooler, an EGR supply line communicating exhaust from the exhaust circuit to the EGR cooler, a venturi unit in the exhaust circuit, and an air outlet line communicating heated air from the EGR cooler to the venturi unit. Flow of exhaust through the venturi creates a pressure which draws cooling air through the EGR cooler. The EGR system also includes a turbocharger unit having an exhaust turbine and an inlet air compressor. A compressor outlet circuit communicates air from the compressor to an air intake of the engine. A valve is located in the compressor outlet circuit. An EGR venturi is in the compressor outlet circuit and is connected in parallel with the valve.

Abstract: A working vehicle such as an agricultural combine includes a vehicle body and an internal combustion engine carried by the vehicle body. An engine compartment at least partially encloses the internal combustion engine. An air exhaust chimney has an inlet in fluid communication with the engine compartment, and an outlet positioned near a top of the vehicle body and facing in an upward direction.

Abstract: A working vehicle, such as an agricultural combine, includes a vehicle body and an internal combustion engine carried by the vehicle body. The internal combustion engine includes a heat exchanger. An air scoop has an inlet positioned near a top of the vehicle body and facing in an upward direction, and an outlet positioned in association with the heat exchanger.

Abstract: A vehicle engine cooling system includes a primary cooling circuit having a primary radiator and a coolant pump. A secondary cooling circuit includes a secondary radiator, an EGR cooler, and a liquid/air charge air pre-cooler receiving engine inlet air from a turbocharger compressor. The coolant pump circulates coolant through the EGR cooler, through the charge air pre-cooler, and through the primary and secondary radiators. A fan blows cooling air through the primary and secondary radiators. The secondary radiator is downstream of the primary radiator in the fan airflow. The cooling system also includes an air-to-air charge air cooler which receives engine inlet air from the liquid/air charge air pre-cooler. The air-to-air charge air cooler is upstream of the primary radiator with respect to flow of cooling air. The cooling system also includes an auxiliary engine fluid cooler which is located between the air-to-air charge air cooler and the primary radiator.

Abstract: A vortex-type filter assembly comprising a housing, a removable inlet module, and a removable outlet module. The housing comprises an inlet portion, a filtration chamber, and an outlet portion. The inlet module separates the inlet portion from the filtration chamber, and has one or more vortex generating inlet passages. The outlet module separates the filtration chamber from the outlet portion, and has one or more outlet passages. There is one outlet passage cooperating with every one inlet passage for filtering debris from the fluid. One or both of inlet module and the outlet module may be removed to facilitate servicing of the filter assembly.