Work vehicle having a cooling system with a reversible airflow
First Claim
Patent Images
1. A work vehicle, comprising:
- an engine;
a hood enclosure at least partially surrounding the engine and extending between a forward end and an aft end, the hood enclosure including a front grille disposed at the forward end and a secondary grille spaced apart from the front grille, the hood enclosure at least partially defining an airflow compartment;
a heat exchanger disposed in the airflow compartment between the front grille and the engine; and
at least one cooling fan disposed in the airflow compartment between the heat exchanger and the engine, the at least one cooling fan being configured to generate an airflow within the airflow compartment between the front grille and the secondary grille, an operation of the at least one cooling fan being controlled so as to vary a flow direction of the airflow between the front grille and the secondary grille based on changes in an airflow parameter of the work vehicle,wherein the airflow parameter includes at least one of wind speed, wind direction, air temperature at the work vehicle, or a direction of travel of the work vehicle.
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Abstract
A work vehicle includes an engine and a hood enclosure at least partially surrounding the engine. The hood enclosure may include a front grille and a secondary grille spaced apart from the front grille. The hood enclosure may also at least partially define an airflow compartment. The work vehicle may also include a heat exchanger disposed in the airflow compartment between the front grille and the engine and at least one cooling fan disposed in the airflow compartment between the heat exchanger and the engine. The at least one cooling fan may generally be configured to generate a reversible airflow within the airflow compartment between the front grille and the secondary grille.
14 Citations
17 Claims
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1. A work vehicle, comprising:
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an engine; a hood enclosure at least partially surrounding the engine and extending between a forward end and an aft end, the hood enclosure including a front grille disposed at the forward end and a secondary grille spaced apart from the front grille, the hood enclosure at least partially defining an airflow compartment; a heat exchanger disposed in the airflow compartment between the front grille and the engine; and at least one cooling fan disposed in the airflow compartment between the heat exchanger and the engine, the at least one cooling fan being configured to generate an airflow within the airflow compartment between the front grille and the secondary grille, an operation of the at least one cooling fan being controlled so as to vary a flow direction of the airflow between the front grille and the secondary grille based on changes in an airflow parameter of the work vehicle, wherein the airflow parameter includes at least one of wind speed, wind direction, air temperature at the work vehicle, or a direction of travel of the work vehicle. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A work vehicle, comprising:
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an engine including an output shaft; a hood enclosure at least partially surrounding the engine and extending between a forward end and an aft end, the hood enclosure including a front grille disposed at the forward end and a secondary grille spaced apart from the front grille, the hood enclosure at least partially defining an airflow compartment; a heat exchanger disposed in the airflow compartment between the front grille and the engine; and first and second fans disposed in the airflow compartment between the heat exchanger and the engine, the first and second fans being configured to generate an airflow within the airflow compartment between the front grille and the secondary grille, wherein the first fan is configured to be selectively engaged with the output shaft of the engine such that the airflow generated by the first fan flows in a first direction from the front grille to the secondary grille, wherein the second fan is configured to be selectively engaged with the output shaft of the engine such that the airflow generated by the second fan flows in a second direction from the secondary grille to the front grille. - View Dependent Claims (15, 16, 17)
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Specification