METHOD OF REMOVAL OF ENGINE EXHAUST FROM A WORK MACHINE AND SYSTEM THEREOF

• US 20190309673A1
• Filed: 04/10/2018
• Published: 10/10/2019
• Est. Priority Date: 04/10/2018
• Status: Active Grant

• Current Assignee: Deere & Company
• Original Assignee: Deere & Company
• Inventors: Kennedy, Thomas, Campbell, Kevin W., Wantschik, Paul A., Graber, Travis, Airey, Kal J.
• Granted Patent: US 10,465,595 B2
• Time in Patent Office: Days
• CPC Class Codes: E02F 9/0841 Articulated frame, i.e. having at least one pivot point between two travelling gear units tractor-trailer combinations B62D53/00
• CPC Class Codes: E02F 9/0866 Engine compartment, e.g. heat exchangers, exhaust filters, cooling devices, silencers, mufflers, position of hydraulic pumps in the engine compartment
• CPC Class Codes: F01N 13/082 of tailpipe, e.g. with means for mixing air with exhaust for exhaust cooling, dilution or evacuation F01N13/20 takes precedence
• CPC Class Codes: F01N 2270/08 for evacuation of exhaust gases, e.g. in tail-pipes
• CPC Class Codes: F01N 3/02 for cooling, or for removing solid constituents of, exhaust by means of electric or electrostatic separators F01N3/01 ; mixing air with exhaust in tailpipes F01N13/082, F01N13/20
• CPC Class Codes: F01N 3/0205 using heat exchangers
• CPC Class Codes: F01N 3/021 by means of filters
• CPC Class Codes: F01N 3/05 by means of air, e.g. by mixing exhaust with air silencers working by addition of air to exhaust F01N1/14; arrangements for the supply of additional air for the thermal or catalytic conversion of noxious components of exhaust F01N3/30 ; in tailpipes F01N13/082
• CPC Class Codes: F01N 3/08 for rendering innocuous using electric or electrostatic separators F01N3/01; chemical aspects B01D53/92
• CPC Class Codes: F01P 11/08 Arrangements of lubricant coolers in lubrication apparatus F01M
• CPC Class Codes: F01P 11/10 Guiding or ducting cooling-air, to, or from, liquid-to-air heat exchangers
• 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: F15B 21/042 Controlling the temperature of the fluid
• CPC Class Codes: Y02A 50/20 Air quality improvement or preservation, e.g. vehicle emission control or emission reduction by using catalytic converters
• CPC Class Codes: Y02T 10/12 Improving ICE efficiencies

Abstract

An apparatus and method of cooling an engine exhaust generated by an engine of a work machine having a hydraulically operated implement. The work machine includes an emission control system and a cooling system having an oil cooling system configured to cool an oil of a hydraulic system and an engine cooling system configured to cool an engine coolant circulating through the engine. An exhaust pipe, coupled to the emission control system and configured to direct engine exhaust, includes an outlet disposed in a space located between an oil cooler of the oil cooling system and a radiator of the engine cooling system. An air displacement device is configured to draw air into and away from the oil cooler and the radiator and to draw the exhaust from the exhaust pipe. Exhaust from the exhaust pipe is drawn past the oil cooler and the radiator to cool the exhaust.

Claims

1. A work machine including an implement and a hydraulic system configured to power the implement, the work machine comprising:

an engine configured to provide power and to generate an exhaust as a result thereof;

an oil cooling system configured to cool an oil of the hydraulic system, the oil cooling system including an oil cooler;

an engine cooling system configured to cool an engine coolant circulating through the engine, the engine cooling system including a radiator, wherein the radiator is located next to and separated from the oil cooler by a space;

an exhaust system operatively connected to the engine, the exhaust system configured to reduce contaminants located in the exhaust, the exhaust system including an exhaust pipe configured to direct the exhaust, wherein the exhaust pipe i, located within the space and between the oil cooler and the radiator to direct exhaust into the space; and

an air displacement device configured to draw air into and away from one of the oil cooler and the radiator and to draw the exhaust from the exhaust pipe and through one of the oil cooler and the radiator, wherein the exhaust pipe directs the exhaust upstream of the air displacement device.

2. The work machine of claim 1 wherein the radiator includes an upstanding radiator.

3. The work machine of claim 2 wherein the oil cooler includes an upstanding oil cooler.

4. The work machine of claim 3 wherein the upstanding oil cooler is located adjacent to the upstanding radiator to define the space therebetween.

5. The work machine of claim 4 wherein the exhaust pipe includes an outlet located in the space between the upstanding oil cooler and the upstanding radiator.

6. The work machine of claim 5 wherein the air displacement device includes a fan.

7. The work machine of claim 1 further comprising a diverter operatively connected to the exhaust pipe, wherein the diverter is configured to direct exhaust away from the air displacement device.

8. The work machine of claim 7 wherein the exhaust pipe includes an outlet located adjacent to one of the oil cooler and the radiator and an aperture spaced from the outlet, wherein the diverter directs exhaust toward the aperture.

9. The work machine of claim 8, wherein the diverter includes one of a valve and an air flow operated vane.

10. An emission control system for an off-road vehicle including a cooling system the emission control system comprising:

an emission control device configured to reduce contaminants from an engine exhaust, the emission control device including at least one of a selective catalytic reduction device, a diesel oxidation catalyst device, a diesel particulate filler device, and a cooled exhaust gas recirculation device; and

an exhaust pipe operatively connected to and extending from the emission control device configured to direct exhaust to the cooling system of the vehicle, wherein the cooling system includes an engine cooling system having a radiator and an oil cooling system having an oil cooler, wherein the exhaust pipe includes an outlet located adjacent to one of the oil cooling system and the engine cooling system, wherein the cooling system includes an air displacement device disposed adjacently to one of the oil cooler and the radiator, wherein the outlet is upstream of the air displacement device and located in a space between the oil cooler and the radiator, and wherein the air displacement device is configured to draw air past the oil cooler and the radiator and to draw exhaust from the outlet of the exhaust pipe.

13. The emission control system of claim 10 wherein the air displacement device includes a fan.

14. The emission control device of claim 10 further comprising a diverter operatively connected to the exhaust pipe, wherein the diverter is configured to direct exhaust away from the air displacement device.

15. The emission control device of claim 14 wherein the exhaust pipe includes an aperture spaced from the outlet, wherein diverter directs exhaust toward the aperture.

16. The emission control device of claim 15, wherein the diverter includes one of a valve and an air flow operated vane.

11. (canceled)

12. (canceled)

17. A method of cooling engine exhaust generated by an engine of a work machine having a hydraulically operated implement, the method comprising:

cooling an oil used by the hydraulically operated implement with an oil cooler;

cooling an engine coolant circulating through the engine with a radiator;

directing the engine exhaust into a space located between the oil cooler and the radiator, wherein the space is defined within a housing of the work machine in which the radiator and oil cooler are located; and

drawing the engine exhaust away from one of the oil cooler and the radiator with an air displacement device.

18. The method of claim 17 wherein the directing step further comprises directing the engine exhaust adjacent to one of the oil cooler and the radiator with an exhaust pipe having an outlet disposed in a space located between the oil cooler and the radiator.

19. The method of claim 17 wherein the directing step further comprises directing the engine exhaust through a channel defined by one of the oil cooler and the radiator with an exhaust pipe having an outlet disposed adjacent to the channel.

20. The method of claim 17 wherein the wherein the directing step further comprises directing the engine exhaust adjacent to one of the oil cooler and the radiator with an exhaust diverter operatively connected to the exhaust pipe.

21. The method of claim 18 wherein the directing step further comprises directing the engine exhaust through the outlet, wherein the outlet is located upstream of the air displacement device.