Cooling system for a work vehicle

• US 10,550,758 B2
• Filed: 12/18/2017
• Issued: 02/04/2020
• Est. Priority Date: 12/18/2017
• Status: Active Grant

• Current Assignee: Blue Leaf IP Incorporated (CNH Industrial N.V.)
• Original Assignee: CNH Industrial America LLC (CNH Industrial N.V.)
• Inventors: Singh, Samrendra Kumar, Ghorpade, Kaushal, Abbassi, Hesam, Tamamidis, Panos
• Primary Examiner(s): Maines, Patrick D
• Assistant Examiner(s): Singh, Dapinder
• Application Number:
  US15/845,356
• Publication Number:
  US 20190186346A1
• Time in Patent Office: 778 Days
• Field of Search: 60599, 165 51
• CPC Class Codes: F01P 2003/182 with multiple heat-exchangers
• CPC Class Codes: F01P 2060/02 Intercooler
• CPC Class Codes: F01P 2060/14 Condenser
• CPC Class Codes: F01P 3/18 Arrangements or mounting of liquid-to-air heat-exchangers such arrangements on cylinders or cylinder heads F01P3/04; relative to vehicles B60K11/04
• CPC Class Codes: F01P 7/165 characterised by systems with two or more loops
• CPC Class Codes: F02B 29/0412 Multiple heat exchangers arranged in parallel or in series
• CPC Class Codes: F02B 29/0443 Layout of the coolant or refrigerant circuit
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

A cooling system includes a charge air cooler system that includes a first stage and a second stage. The first stage receives charge air via a charge air flow path. The first stage receives coolant fluid via a first coolant fluid flow path. The second stage receives the charge air from the first stage via the charge air flow path, such the second stage of the charge air cooler system outputs the charge air and receives the coolant fluid via a second coolant fluid flow path. The cooling system includes a low temperature radiator system that includes a low-temperature radiator that directs the coolant fluid toward the second coolant fluid flow path and a third coolant fluid flow path. The cooling system includes a high temperature radiator system that directs the coolant fluid toward the first stage via the first coolant fluid flow path.

Claims

1. A cooling system, comprising:

a charge air cooler system, comprising;

a first stage configured to receive charge air at a first temperature via a charge air flow path, wherein the first stage of the charge air cooler system is configured to receive coolant fluid via a first coolant fluid flow path;

a second stage configured to receive the charge air at a second temperature from the first stage of the charge air cooler system via the charge air flow path, wherein the second stage of the charge air cooler system is configured to output the charge air at a third temperature, wherein the second stage of the charge air cooler system is configured to receive the coolant fluid via a second coolant fluid flow path, wherein the second temperature is lower than the first temperature and the third temperature is lower than the second temperature;

a low temperature radiator system, comprising;

a low temperature radiator configured to direct the coolant fluid toward the second coolant fluid flow path;

a high temperature radiator system configured to direct the coolant fluid toward the first stage of the charge air cooler system via the first coolant fluid flow path; and

a water hydraulic oil cooler system configured to receive the coolant fluid from the second stage of the charge air cooler system and to direct the coolant fluid toward the high temperature radiator system.

2. The cooling system of claim 1, comprising a fan, wherein the fan is position rearward the high temperature radiator system relative to a longitudinal axis of a vehicle.

3. The cooling system of claim 2, wherein the high temperature radiator system is positioned rearward the low temperature radiator system relative to the longitudinal axis, wherein the high temperature radiator system is positioned between the fan and the low temperature radiator system.

4. The cooling system of claim 1, wherein the low temperature radiator system comprises an ultra-low temperature radiator configured to receive the coolant fluid via a third coolant fluid flow path.

5. The cooling system of claim 4, wherein the ultra-low temperature radiator is configured direct the coolant fluid toward a condenser of a work vehicle via the third coolant fluid flow path.

6. The system of claim 5, wherein the ultra-low temperature radiator is configured to direct the coolant fluid toward a fuel cooler of the work vehicle via the third coolant fluid flow path, wherein the fuel cooler and the condenser are arranged in series with respect to one another.

7. The cooling system of claim 1, wherein the high temperature radiator system comprises:

an engine radiator configured to direct coolant fluid to an engine of a work vehicle;

a high temperature charge air cooler radiator configured to direct the coolant fluid toward the low temperature radiator via a fourth coolant fluid flow path; and

a high temperature hydraulic oil cooler radiator configured to direct the coolant fluid toward the first stage of the charge air cooler system via the first coolant fluid flow path.

8. The cooling system of claim 1, wherein the water hydraulic oil cooler system comprises a first stage and a second stage of the water hydraulic oil cooler system, wherein the first stage of the water hydraulic oil cooler system is configured to receive hydraulic oil via a hydraulic oil flow path and to direct the hydraulic oil toward the second stage of the water hydraulic oil cooler system via the hydraulic oil flow path, and the second stage of the water hydraulic oil cooler system is configured to receive the hydraulic oil via the hydraulic oil flow path.

9. The cooling system of claim 8, wherein the second stage of the water hydraulic oil cooler system is configured to receive the coolant fluid from the second stage of the charge air cooler system and to direct the coolant fluid toward the first stage of the water hydraulic oil cooler system, and the first stage of the water hydraulic oil cooler system is configured to direct the coolant fluid toward the high temperature radiator system.

10. The cooling system of claim 1, wherein the second stage of the charge air cooler system is configured to output the charge air towards an environment.

11. The cooling system of claim 1, wherein the third temperature is below 70°

C.

12. A cooling system, comprising:

a high temperature radiator system configured to direct coolant fluid via a first coolant fluid flow path;

a water hydraulic oil cooler system configured to receive hydraulic oil via a hydraulic oil flow path and to direct the coolant fluid, via a second coolant fluid flow path, toward the high temperature radiator system; and

a low temperature radiator system, comprising a low temperature radiator configured to direct the coolant fluid toward the second coolant fluid flow path.

13. The cooling system of claim 12, wherein the water hydraulic oil cooler system comprises a first stage and a second stage, wherein the first stage of the water hydraulic oil cooler system is configured to receive the hydraulic oil via the hydraulic oil flow path and to direct the hydraulic oil toward the second stage of the water hydraulic oil cooler system via the hydraulic oil flow path, wherein the second stage of the water hydraulic oil cooler system is configured to receive the hydraulic oil via the hydraulic oil flow path, and the second stage of the water hydraulic oil cooler system is configured to receive coolant fluid from the low temperature radiator system via the second coolant fluid flow path.

14. The cooling system of claim 13, wherein the second stage of the water hydraulic oil cooler system is configured to:

receive coolant fluid from the low temperature radiator system via the second coolant fluid flow path;

raise a temperature of the coolant fluid; and

direct the coolant fluid toward the first stage of the water hydraulic oil cooler system via the second coolant fluid flow path.

15. The cooling system of claim 13, wherein the first stage of the water hydraulic oil cooler system is configured to:

receive the coolant fluid from the second stage of the water hydraulic oil cooler system via the second coolant fluid flow path; and

direct the coolant fluid toward the high temperature radiator system via the second coolant fluid flow path.

16. The cooling system of claim 12, wherein the low temperature radiator system comprises an ultra-low temperature radiator configured to direct the coolant fluid toward a condenser and a fuel cooler of the work vehicle via a third coolant fluid flow path, and wherein the condenser and the fuel cooler are arranged in series with respect to one another along the third coolant fluid flow path.

17. A cooling system for a work vehicle, comprising:

a charge air cooler system, comprising;

a first stage configured to receive charge air at a first temperature from a turbo of the work vehicle via a charge air flow path, wherein the first stage of the charge air cooler system is configured to receive coolant fluid via a first coolant fluid flow path;

a second stage configured to receive the charge air at a second temperature from the first stage of the charge air cooler system via the charge air flow path, wherein the second stage of the charge air cooler system is configured to output the charge air at a third temperature, wherein the second stage of the charge air cooler system is configured to receive the coolant fluid via a second coolant fluid flow path;

a low temperature radiator system, comprising;

a low temperature radiator configured to direct the coolant fluid toward the second coolant fluid flow path and a third coolant fluid flow path; and

an ultra-low temperature radiator configured to receive the coolant fluid from the third coolant fluid flow path and to direct the coolant fluid toward a condenser and a fuel cooler of the work vehicle via the third coolant fluid flow path, wherein the condenser and the fuel cooler are arranged in series with respect to one another along the third coolant fluid flow path; and

a high temperature radiator system, comprising;

an engine radiator configured to direct coolant fluid to an engine of the work vehicle;

a high temperature charge air cooler radiator configured to direct the coolant fluid toward the low temperature radiator via a fourth coolant fluid flow path;

a high temperature hydraulic oil cooler radiator configured to direct the coolant fluid toward the first stage of the charge air cooler system via the first coolant fluid flow path.

18. The cooling system of claim 17, wherein the first stage of the charge air cooler system is configured to receive the charge air from a turbo of the work vehicle.

19. The cooling system of claim 17, wherein the coolant fluid received by the condenser is directed toward the fuel cooler along the third coolant fluid flow path.

20. The cooling system of claim 17, wherein the second stage of the charge air cooler system is configured to output the charge air at a third temperature toward an external environment.