Engine and cooling system arrangement for a harvester
First Claim
1. An engine and cooling system apparatus for a self-propelled harvesting machine, comprising:
- a frame having a forward end, a rear end opposite the forward end, and first and second sides extending between the forward end and the rear end;
an engine supported on the frame at a first elevation intermediate the forward end and the rear end, the engine being contained in an engine compartment;
a cooler box supported on the frame at a second elevation higher than the first elevation an in vertically offset relation to the engine compartment, the cooler box having an inlet opening adjacent to the first side of the frame, a discharge opening adjacent to the second side of the frame, and an interior, defining an air flow path into the cooler box through the inlet opening, through the interior, and from the cooler through the discharge opening, and at least one heat exchanger disposed in the air flow path for flow of the air flow therethrough;
a fan configured and disposed for generating an air flow along the air flow path through the cooler box so as to flow through the at least one heat exchanger and outwardly from the cooler box through the discharge opening; and
an air flow duct having an inlet disposed adjacent to a peripheral portion of the discharge opening of the cooler box and only partially in the air flow path, for receiving a portion of the air flow through the discharge opening, the air flow duct extending downwardly to the engine compartment, such that the limited portion of the air flow will flow through the duct into the engine compartment so as to create a positive air pressure condition therein.
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Accused Products
Abstract
The engine and cooling system arrangement includes an engine supported between the forward and rear ends of the frame of a harvesting machine, in an engine compartment. A cooler box containing at least one heat exchanger is disposed higher than and vertically offset from, the engine, and has an inlet opening facing sidewardly and covered with an air screen. A discharge opening faces in an opposite side direction. A fan generates a sideward air flow through the filter screen, cooler box and at least one heat exchanger, and outwardly through the discharge opening, away from an operator cab of the machine. A portion of the air flow will be directed into an air flow duct extending downwardly and forwardly to the engine compartment to create a positive air pressure condition therein, to limit infiltration of unfiltered air.
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Citations
22 Claims
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1. An engine and cooling system apparatus for a self-propelled harvesting machine, comprising:
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a frame having a forward end, a rear end opposite the forward end, and first and second sides extending between the forward end and the rear end; an engine supported on the frame at a first elevation intermediate the forward end and the rear end, the engine being contained in an engine compartment; a cooler box supported on the frame at a second elevation higher than the first elevation an in vertically offset relation to the engine compartment, the cooler box having an inlet opening adjacent to the first side of the frame, a discharge opening adjacent to the second side of the frame, and an interior, defining an air flow path into the cooler box through the inlet opening, through the interior, and from the cooler through the discharge opening, and at least one heat exchanger disposed in the air flow path for flow of the air flow therethrough; a fan configured and disposed for generating an air flow along the air flow path through the cooler box so as to flow through the at least one heat exchanger and outwardly from the cooler box through the discharge opening; and an air flow duct having an inlet disposed adjacent to a peripheral portion of the discharge opening of the cooler box and only partially in the air flow path, for receiving a portion of the air flow through the discharge opening, the air flow duct extending downwardly to the engine compartment, such that the limited portion of the air flow will flow through the duct into the engine compartment so as to create a positive air pressure condition therein. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A self-propelled harvesting machine, comprising:
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a frame having a forward end, a rear end opposite the forward end, and sides extending between the forward and rear ends; an engine supported on the frame intermediate the forward end and the rear end, the engine being contained in an engine compartment; a cooler box supported on the frame at an elevation higher than the engine and in vertically offset relation thereto, the cooler box having an inlet opening facing in a first sideward direction, a discharge opening facing in a second sideward direction opposite the first sideward direction, and an interior extending between the inlet and discharge openings; at least one heat exchanger disposed in the interior of the cooler box; a fan configured and disposed for generating an air flow in the second sideward direction through the cooler box such that at least a portion of the air flow will pass through the at least one heat exchanger and the discharge opening; and an air flow duct having an inlet disposed adjacent to a portion of a periphery of the discharge opening of the fan box for receiving a limited portion of the air flow generated by the fan, the duct extending downwardly to the engine compartment, such that the limited portion of the air flow will flow through the air flow duct into the engine compartment so as to create a positive air pressure condition therein, and wherein at least a portion of an exhaust duct of the engine extends through the air flow duct. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17)
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18. An engine and cooling system arrangement for a self-propelled harvesting machine, comprising:
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an engine supported on a frame of the machine at a first elevation intermediate a forward end and a rear end thereof, the engine being contained in an engine compartment; a heat exchanger housing supported on the frame rearwardly of the engine at a second elevation higher than the first elevation, the heat exchanger housing having an inlet opening facing in a first sideward direction and including a filter screen in covering relation thereto, a discharge opening facing in a second sideward direction opposite the first sideward direction, the heat exchanger housing containing at least one heat exchanger; a fan configured and operable for generating an air flow into the heat exchanger housing through the filter screen, sidewardly through the at least one heat exchanger, and outwardly from the heat exchanger housing through the discharge opening; and an air flow duct having an inlet disposed adjacent to a peripheral edge of the discharge opening of the heat exchanger housing in a position and orientation for receiving a portion of the air flow, the duct extending downwardly and forwardly to the engine compartment, such that the portion of the air flow will flow through the duct and enter the engine compartment so as to create a positive air pressure condition therein, and an exhaust duct of the engine and at least one fluid line extending upwardly through the air flow duct to the fan box. - View Dependent Claims (19, 20, 21, 22)
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Specification