Air intake system for a work vehicle

Patent metadata

Field	Value
Publication number	US-10443548-B2
Application number	US-201715718182-A
Country	US
Kind code	B2
Filing date	Sep 28, 2017
Priority date	Sep 28, 2017
Publication date	Oct 15, 2019
Grant date	Oct 15, 2019

Abstract

In one aspect, an air intake system for supplying air to an engine of a work vehicle may include a cooler box having a first wall and a second wall, with the first and second walls at least partially defining a chamber within the cooler box. The air intake system may also include a screen defining at least a portion of the first wall of the cooler box. Furthermore, the air intake system may include an air filter assembly defining at least a portion of the second wall of the cooler box. The air filter assembly may be configured to remove particles present in the air exiting the chamber of the cooler box through the air filter assembly. The air exiting the cooler box through the air filter assembly may be supplied to the engine for combustion.

First claim

What is claimed is:

1. An air intake system for supplying air to an engine of a work vehicle, the air intake system comprising:
a cooler box including a first wall and a second wall, the first and second walls at least partially defining a chamber within the cooler box;
a screen defining at least a portion of the first wall of the cooler box, the screen being configured to remove particles present in air entering the chamber of the cooler box;
one or more heat exchangers within the chamber of the cooler box; and
an air filter assembly defining at least a portion of the second wall of the cooler box, the air filter assembly including an air filter element configured to remove particles present in the air exiting the chamber of the cooler box through the air filter assembly,
wherein the air filter assembly is downstream of the one or more heat exchangers such that heat is transferred between the air flowing within the cooler box and the one or more heat exchangers before such air exits the cooler box through the air filter assembly, and
wherein the air exiting the cooler box through the air filter assembly is supplied to the engine for combustion.

2. The air intake system of claim 1 , wherein the air filter assembly further comprises a pre-cleaner positioned upstream of the air filter element, the air intake system further comprising:
a vacuum source configured to generate a vacuum within the pre-cleaner to remove particles in the air flowing through the pre-cleaner.

3. The air intake system of claim 1 , further comprising:
a pre-cleaner positioned upstream of the screen; and
a vacuum source configured to generate a vacuum within the pre-cleaner to remove particles that have accumulated on the screen.

4. The air intake system of claim 3 , wherein the pre-cleaner comprises a wand configured to rotate relative to the screen to remove the particles that have accumulated on the screen.

5. The air intake system of claim 1 , wherein the filter assembly comprises a first pre-cleaner positioned upstream of the air filter element, the air intake system further comprising:
a second pre-cleaner positioned upstream of the screen; and
a vacuum source configured to generate a vacuum within the first and second pre-cleaners.

6. The air intake system of claim 1 , wherein the second wall is oriented perpendicular relative the first wall.

7. The air intake system of claim 1 , wherein the cooler box extends vertically between a top wall and a bottom wall, the second wall corresponding to the top wall of the cooler box.

8. A work vehicle, comprising:
an engine;
a cooler box including a first wall and a second wall, the first and second walls defining a chamber of the cooler box;
a screen defining at least a portion of the first wall of the cooler box, the screen being configured to remove particles present in air entering the chamber of the cooler box;
one or more heat exchangers within the chamber of the cooler box, the one or more heat exchangers being configured to cool one or more fluids circulated through the engine;
an air filter assembly defining at least a portion of the second wall of the cooler box, the air filter assembly including an air filter element configured to remove particles present in the air exiting the chamber of the cooler box through the air filter assembly; and
air conduit extending between the air filter assembly and the engine, the air conduit being configured to supply air from the air filter assembly to the engine for combustion,
wherein the air filter assembly is downstream of the one or more heat exchangers such that heat is transferred between the air flowing within the cooler box and the one or more heat exchangers before such air exits the cooler box through the air filter assembly.

9. The work vehicle of claim 8 , wherein the air filter assembly further comprises a pre-cleaner positioned upstream of the air filter element, the work vehicle further comprising:
a vacuum source configured to generate a vacuum within the pre-cleaner to remove particles in the air flowing through the pre-cleaner.

10. The work vehicle of claim 8 , further comprising:
a pre-cleaner positioned upstream of the screen; and
a vacuum source configured to generate a vacuum within the pre-cleaner to remove particles that has accumulated on the screen.

11. The work vehicle of claim 10 , wherein the pre-cleaner comprises a wand configured to rotate relative to the screen to remove the particles that has accumulated on the screen.

12. The work vehicle of claim 8 , wherein the air filter assembly comprises a first pre-cleaner positioned upstream of the air filter element, the work vehicle further comprising:
a second pre-cleaner positioned upstream of the screen; and
a vacuum source configured to generate a vacuum within the first and second pre-cleaners.

13. The work vehicle of claim 8 , further comprising:
a secondary air filter positioned within the air conduit downstream of the air filter assembly and spaced apart from the cooler box, the secondary air filter being configured to remove particles present in the air flowing through the secondary air filter.

14. The work vehicle of claim 8 , wherein the second wall is oriented perpendicular relative the first wall.

15. The work vehicle of claim 8 , wherein the cooler box extends vertically between a top wall and a bottom wall, the second wall corresponding to the top wall of the cooler box.

16. The air intake system of claim 1 , wherein the first wall and the second wall are directly coupled together.

17. The work vehicle of claim 8 , wherein the first wall and the second wall are directly coupled together.

18. An air intake system for supplying air to an engine of a work vehicle, air intake system comprising:
a cooler box including a first wall and a second wall, the first and second walls at least partially defining a chamber within the cooler box;
a screen defining at least a portion of the first wall of the cooler box, the screen being configured to remove particles present in air entering the chamber of the cooler box;
an air filter assembly defining at least a portion of the second wall of the cooler box, the air filter assembly including an air filter element configured to remove particles present in the air exiting the chamber of the cooler box through the air filter assembly; and
a secondary air filter positioned downstream of the air filter assembly and spaced apart from the cooler box, the secondary air filter being configured to remove particles present in the air flowing through the secondary air filter,
wherein the air exiting the cooler box through the air filter assembly is supplied to the engine for combustion.

Assignees

• Cnh Ind America Llc

Inventors

• Shonk Jason L

Classifications

• B60Y2200/222

  Harvesters · CPC title

• F02M35/10229

  the intake system acting as a vacuum or overpressure source for auxiliary devices, e.g. brake systems; Vacuum chambers (air storage chamber F02B21/00) · CPC title

• F02M35/042

  combined with other devices, e.g. heaters (F02M35/021, F02M35/06, F02M35/14 take precedence); for use other than engine air intake cleaning, e.g. air intake filters arranged in the fuel vapour recovery system · CPC title

• F02M35/164

  Heavy duty vehicles, e.g. trucks, trains, agricultural or construction machines · CPC title

• B60K11/08

  Air inlets for cooling; Shutters or blinds therefor · CPC title