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US 12,642,176 B2Granted
Air screen cleaning system for agricultural vehicle
AssigneeCNH Industrial America LLC
InventorsJeffrey Thomas, Matthew Gyenes
Life of this patent
Estimating the term…
Abstract
An aspiration system of an agricultural vehicle includes a perforated screen that is configured to be positioned adjacent a fan-cooled fluid cooler, and an air delivery device positioned on one side surface of the perforated screen. The air delivery device includes a series of openings facing the perforated screen for directing air through the perforated screen to dislodge debris on the perforated screen.
Claims14
An aspiration system of an agricultural vehicle, the aspiration system comprising:
- a perforated screen that is configured to be positioned adjacent to an air-cooled fluid cooler;
- an air delivery device positioned on one side surface of the perforated screen, the air delivery device including a series of openings facing the perforated screen that directs air through the perforated screen to dislodge debris on the perforated screen;
- and
- a cooling fan that causes air to flow across the fluid cooler;
- wherein the air delivery device comprises a wand having a first passageway fluidly connected to a vacuum pump and a second passageway fluidly connected to a positive pressure pump;
- and
- wherein the second passageway comprises a nozzle positioned on a trailing portion of the wand as viewed in a direction of movement of the wand.
4 more elements
A combine harvester comprising an aspiration system that comprises:
- a perforated screen positioned adjacent a fluid cooler;
- an air delivery device positioned on one side surface of the perforated screen, the air delivery device including a series of openings facing the perforated screen that directs air through the perforated screen to dislodge debris on the perforated screen;
- and
- a cooling fan that causes air to flow across the fluid cooler;
- wherein the air delivery device comprises a wand having a first passageway fluidly connected to a vacuum pump and a second passageway fluidly connected to a positive pressure pump;
- and
- wherein the second passageway comprises a nozzle positioned on a trailing portion of the wand as viewed in a direction of movement of the wand.
4 more elements
Dependencies are inferred from the claim text.