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

Patent metadata

Field	Value
Publication number	US-2016356249-A1
Application number	US-201514729185-A
Country	US
Kind code	A1
Filing date	Jun 3, 2015
Priority date	Jun 3, 2015
Publication date	Dec 8, 2016
Grant date	—

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, wherein the outlet body defines a flow passage in fluid communication with the heat exchanger; and a fuel passage in thermal communication with the flow passage of the outlet body.

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

3 . The system as in claim 2 , 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 2 , 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 2 , 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 , wherein the fuel passage is defined by a tube that extends into the flow passage of the outlet body.

7 . The system as in claim 1 , wherein charge air cooler further comprises a plate that extend laterally and longitudinally across an outer surface of the outlet body, wherein the fuel passage is defined between an inner surface of the plate and the outer surface of the outlet body.

8 . 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.

9 . 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, wherein the outlet body defines a flow passage in fluid communication with the heat exchanger; 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, wherein the fuel passage is in thermal communication with the flow passage of the outlet body.

10 . The work vehicle as in claim 9 , wherein the outlet body comprises an inner surface and an outer surface, the inner surface at least partially defining the flow passage, wherein the fuel passage is defined by the outlet body between the inner surface and the outer surface.

11 . The work vehicle as in claim 10 , wherein at least a portion of the fuel passage extends longitudinally along the inner surface of the outlet body.

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

13 . The work vehicle as in claim 10 , wherein the fuel passage comprises a plurality of passages fluidly coupled together and that extend along the inner surface of the outlet body.

14 . The work vehicle as in claim 9 , wherein the fuel passage is defined by a tube that extends into the flow passage of the outlet body.

15 . The work vehicle as in claim 14 , wherein the tube extends through a plurality of fins disposed within the flow passage of the outlet body.

16 . The work vehicle as in claim 9 , wherein charge air cooler further comprises a plate that extend laterally and longitudinally across an outer surface of the outlet body, wherein the fuel passage is defined between an inner surface of the plate and the outer surface of the outlet body.

17 . The work vehicle as in claim 9 , further comprising a plurality of fins disposed along the inner surface and in thermal communication with the fuel passage and the flow passage.

18 . A method for cooling charge air and fuel for a diesel engine, comprising
cooling heated charge air from a turbocharger via a charge air cooler to provide a cooled charge air to a flow passage defined by an outlet body of the charge air cooler; flowing excess fuel from the diesel engine through a fuel passage that is in thermal communication with the flow passage of the outlet body; and transferring thermal energy from the excess fuel to the cooled charge air to provide a cooled excess fuel.

19 . The method as in claim 18 , further comprising flowing the cooled excess fuel to a fuel supply, wherein the fuel supply is in fluid communication with a combustion chamber of the diesel engine.

20 . The method as in claim 18 , further comprising flowing the cooled charge air to a combustion chamber of the diesel engine.

Assignees

• Cnh Ind America Llc

Inventors

• Morey Daniel

Classifications

• F01P3/20

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

• F02M35/10216

  Fuel injectors; Fuel pipes or rails; Fuel pumps or pressure regulators · CPC title

• F02M35/10157

  Supercharged engines · CPC title

• F02B29/0462

  Liquid cooled heat exchangers · CPC title

• B60K15/01

  Arrangement of fuel conduits · CPC title