System and method for cooling charge air and excess fuel for a turbocharged diesel engine

Patent metadata

Field	Value
Publication number	US-10047707-B2
Application number	US-201514729185-A
Country	US
Kind code	B2
Filing date	Jun 3, 2015
Priority date	Jun 3, 2015
Publication date	Aug 14, 2018
Grant date	Aug 14, 2018

Abstract

A system for cooling charge air and excess fuel for a turbocharged diesel engine includes a charge air cooler having an inlet body, a heat exchanger that is disposed downstream from the inlet body and an outlet body that is disposed downstream from the heat exchanger. The outlet body defines a flow passage in fluid communication with the heat exchanger. The system further includes a fuel passage that is in thermal communication with the flow passage of the outlet body. A method for cooling excess fuel from the turbocharge diesel engine is also disclosed herein.

First claim

What is claimed is:

1. A system for cooling charge air and excess fuel for a turbocharged diesel engine, comprising:
a charge air cooler having an inlet body, a heat exchanger disposed downstream from the inlet body and an outlet body disposed downstream from the heat exchanger, the outlet body including an inner surface that at least partially defines a flow passage within the outlet body, the flow passage being in fluid communication with the heat exchanger, wherein the inner surface of the outlet body is configured to be in direct contact with air flowing through the flow passage of the outlet body; and
a fuel passage in thermal communication with the flow passage of the outlet body, the fuel passage being defined by at least a portion of the inner surface of the outlet body.

2. The system as in claim 1 , wherein the outlet body comprises an outer surface, wherein the fuel passage is defined by the outlet body between the inner surface and the outer surface.

3. The system as in claim 1 , wherein at least a portion of the fuel passage extends longitudinally along the inner surface of the outlet body.

4. The system as in claim 1 , wherein at least a portion of the fuel passage extends laterally across the inner surface of the outlet body.

5. The system as in claim 1 , wherein the fuel passage comprises a plurality of passages fluidly coupled together and that extend along the inner surface of the outlet body.

6. The system as in claim 1 , further comprising a plurality of fins disposed along the inner surface and in thermal communication with the fuel passage and the flow passage.

7. A work vehicle, comprising:
a chassis;
a drivetrain attached to the chassis including a turbocharged diesel engine and a transmission;
a fuel supply in fluid communication with the diesel engine; and
a system for cooling charge air from the turbocharger and excess fuel from the diesel engine, the system comprising
a charge air cooler having an inlet body downstream from the turbocharger, a heat exchanger disposed downstream from the inlet body and an outlet body disposed downstream from the heat exchanger, the outlet body including an inner surface that at least partially defines a flow passage within the outlet body, the flow passage being in fluid communication with the heat exchanger, wherein the inner surface of the outlet body is configured to be in direct contact with air flowing through the flow passage of the outlet body; and
a fuel passage having an inlet in fluid communication with a fuel outlet of the diesel engine and an outlet in fluid communication with the fuel supply, the fuel passage being in thermal communication with the flow passage of the outlet body, the fuel passage being defined by at least a portion of the inner surface of the outlet body.

8. The work vehicle as in claim 7 , wherein the outlet body comprises an outer surface, wherein the fuel passage is defined by the outlet body between the inner surface and the outer surface.

9. The work vehicle as in claim 7 , wherein at least a portion of the fuel passage extends longitudinally along the inner surface of the outlet body.

10. The work vehicle as in claim 7 , wherein at least a portion of the fuel passage extends laterally across the inner surface of the outlet body.

11. The work vehicle as in claim 7 , wherein the fuel passage comprises a plurality of passages fluidly coupled together and that extend along the inner surface of the outlet body.

12. The work vehicle as in claim 7 , further comprising a plurality of fins disposed along the inner surface and in thermal communication with the fuel passage and the flow passage.

Assignees

• Cnh Ind America Llc
• Cnh Ind America Llc

Inventors

• Morey Daniel

Classifications

• F02M35/10268 Primary

  Heating, cooling or thermal insulating means (air coolers F02B29/04; thermal treatment of combustion-air, fuel or fuel-air mixture F02M31/00; details of the throttle valve housing F02D9/1035) · CPC title

• F02B29/0475

  the intake air cooler being combined with another device, e.g. heater, valve, compressor, filter or EGR cooler, or being assembled on a special engine location · CPC title

• F01P3/00

  Liquid cooling · CPC title

• F02M35/10157

  Supercharged engines · CPC title

• F01P3/20

  Cooling circuits not specific to a single part of engine or machine (F01P3/22 takes precedence) · CPC title