Engine air precleaner system

Patent metadata

Field	Value
Publication number	US-11092065-B2
Application number	US-201916394458-A
Country	US
Kind code	B2
Filing date	Apr 25, 2019
Priority date	Apr 25, 2019
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

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.

First claim

The invention claimed is:

1. An air management assembly for a work machine, comprising:
a cooling orifice defined in a panel;
a cooling fan generating a cooling airflow from an intake side of 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 on the intake side;
wherein, the first baffle directs the cooling airflow partially across the fixed screen to clear the fixed screen of debris.

2. The air management assembly of claim 1 , further wherein the first baffle defines a first inlet and a first outlet, the first inlet being oriented in a substantially vertical direction.

3. The air management assembly of claim 2 , further wherein the first outlet directs air towards the cooling orifice.

4. The air management assembly of claim 2 , further wherein the fixed screen is at least partially positioned between the first inlet and the first outlet.

5. The air management assembly of claim 2 , further comprising a second baffle wherein the second baffle defines a second inlet and a second outlet, the second inlet being oriented in a substantially vertical direction.

6. The air management assembly of claim 1 , further comprising a rotary screen substantially covering the cooling orifice and an air scoop that partially directs the cooling airflow into the cooling orifice.

7. The air management assembly of claim 6 , further wherein the air scoop has a cutout portion and at least a portion of the rotary screen is not horizontally obstructed by the air scoop from a surrounding environment.

8. The air management assembly of claim 6 , further comprising a louver assembly coupled to the air scoop.

9. The air management assembly of claim 8 , further wherein the louver assembly is pivotable about a pivot axis.

10. An air management assembly for a work machine, comprising:
a cooling assembly having a cooling package and defining a cooling orifice, the cooling assembly configured to direct air from a surrounding environment through the cooling orifice to cool the cooling package;
an air scoop assembly that directs air from the surrounding environment through the cooling orifice;
a first baffle defined in the air scoop assembly to direct air from the surrounding environment into the cooling orifice along a first path; and
an intake orifice defined in the air scoop assembly at least partially along the first baffle;
wherein, air from the surrounding environment enters the cooling orifice along the first path through the first baffle and through a second path that is not through the first baffle.

11. The air management assembly of claim 10 , further comprising a screen over the intake orifice, wherein the first path is directed at least partially over the screen to thereby remove debris from the screen as air flows in the first path towards the cooling orifice.

12. The air management assembly of claim 10 , further wherein the air scoop assembly further defines a second baffle that provides air flow from the surrounding environment to the cooling orifice along a third path.

13. The air management assembly of claim 12 , further comprising a second orifice having a second screen wherein the second orifice and screen are positioned at least partially along the third path.

14. The air management assembly of claim 12 , further wherein the first baffle has a first inlet and the second baffle has a second inlet wherein the first and second inlets are substantially facing a vertical direction.

15. The air management assembly of claim 14 , further wherein the first baffle has a first outlet and the second baffle has a second outlet, the first and second outlets being defined in a pocket portion of the air scoop assembly.

16. The air management assembly of claim 10 , further wherein the air scoop assembly has a louver assembly coupled thereto wherein the louver assembly partially defines the second path.

17. The air management assembly of claim 16 , further wherein the louver assembly is pivotable about a pivot axis between a first orientation and a second orientation.

18. A work machine, comprising:
a body;
at least one ground engaging mechanism;
an engine that selectively powers the ground engaging mechanism, the engine fluidly coupled to an engine intake orifice to provide air to the engine to assist with the combustion of fuel;
a radiator fluidly coupled to at least one fluid system of the work machine to cool fluids used by the fluid system;
a cooling fan that draws air from a surrounding environment through a cooling orifice past the radiator;
an air scoop assembly positioned at least partially around the cooling orifice and that directs air from the surrounding environment through the cooling orifice; and
a first baffle defined in the air scoop assembly to direct air from the surrounding environment into the cooling orifice along a first path;
wherein, the engine intake orifice is defined in the air scoop assembly at least partially along the first baffle;
further wherein, the cooling fan draws air from the surrounding environment through the air scoop assembly along the first path through the first baffle and through a second path that is not through the first baffle.

19. The work machine of claim 18 , further wherein the air scoop assembly further defines a second baffle that provides air flow from the surrounding environment to the cooling orifice along a third path,
further wherein, the first baffle has a first inlet and the second baffle has a second inlet wherein the first and second inlets are substantially facing a vertical direction.

20. The work machine of claim 19 , further wherein the air scoop assembly has a louver assembly coupled thereto and positioned between the first and second baffle, wherein the louver assembly partially defines the second path;
further wherein, the louver assembly is pivotable about a pivot axis between a first orientation and a second orientation.

Assignees

• Deere & Co

Inventors

• Sheidler Alan D
• Herbst Garrick W
• Van Hal Todd E

Classifications

• B01D50/20

  Combinations of devices covered by groups B01D45/00 and B01D46/00 · CPC title

• B01D46/72

  with backwash arms, shoes or nozzles · CPC title

• B01D46/62

  connected in series · CPC title

• B60Y2200/222

  Harvesters · CPC title

• B01D46/0042

  Use of the inlet flow in order to clean the filter surface · CPC title