Cooling system for charge air cooler

Patent metadata

Field	Value
Publication number	US-2016102602-A1
Application number	US-201414513941-A
Country	US
Kind code	A1
Filing date	Oct 14, 2014
Priority date	Oct 14, 2014
Publication date	Apr 14, 2016
Grant date	—

Abstract

A vehicle cooling system includes a fan, a radiator, a charge air cooler upstream of the radiator, an air conduit supplying air to the charge air cooler, and a cooler for cooling the charge air cooler or air flowing through the air conduit. The cooler includes a housing surrounding a portion of the air conduit, an injector for injecting water into a space between the cooler housing and the air conduit, an outlet pipe for conducting vaporized water out of the space, and a pump for pumping water from a source to the injector. The cooler also includes heat conducting vanes which extend into the space and into an interior of the air conduit.

First claim

What is claimed is:

1 . A vehicle cooling system, comprising:
a fan; a radiator upstream of the fan; a charge air cooler upstream of the radiator; an air conduit connected to an air inlet of the charge air cooler; and a cooler for cooling the charge air cooler or air flowing through the air conduit.

2 . The cooling system of claim 1 , wherein:
the cooler comprises: a cooler housing surrounding a portion of the air conduit; an injector for injecting water into a space between the cooler housing and the air conduit; an outlet pipe for conducting vaporized water out of said space; and a pump for pumping water from a source to the injector.

3 . The cooling system of claim 2 , wherein:
the cooler further comprises: a plurality of heat conducting vanes which extend into the space and into an interior of the air conduit, the vanes conducting heat away from the charge air which flows through the air conduit.

4 . The cooling system of claim 1 , wherein:
water and vaporized water flows over an outer surface of the air conduit in a first axial direction; and charge air flows through an interior of the air conduit in a second direction which opposite to said first direction.

5 . The cooling system of claim 1 , wherein:
the cooler comprises: a hollow inner sleeve inserted between an upstream portion of the air conduit and a downstream portion of the air conduit; a hollow outer sleeve which surrounds the inner sleeve and which forms an annular space therebetween; a plurality of heat conducting vanes which extend into the annular space and into an interior of the inner sleeve, the vanes conducting heat away from charge air which flows through the inner conduit; at least one nozzle for injecting water into the annular space; and an outlet pipe connected to the outer sleeve, so that water vaporized in the annular space can flow through and out of the annular space via the outlet pipe.

6 . The cooling system of claim 5 , wherein:
a hollow ring-shaped conduit surrounds a portion of the outer sleeve; a supply line connects the ring-shaped conduit with an outlet of a pump; and a plurality of spaced apart injector tubes are in communication with the ring-shaped conduit, each injector tube extending radially inwardly through the outer sleeve and forming a nozzle through which water from the ring-shaped conduit is injected into the annular space.

7 . The cooling system of claim 1 , wherein:
the cooler comprises a spray conduit positioned adjacent to a portion of an upstream side of the charge air cooler, the spray conduit having a plurality of spray nozzles; and a pump for pumping water from a source to the spray conduit so that water sprays out of the spray nozzles and onto said upstream side of the charge air cooler.

8 . The cooling system of claim 7 , wherein:
the spray conduit forms a loop.

9 . The cooling system of claim 8 , wherein:
the spray nozzles are positioned on interior surface of the loop.

10 . The cooling system of claim 7 , wherein:
the spray conduit comprises a first branch line, a second branch line and a third branch line, the first and second branch lines being connected together to form a loop and the third branch line bisecting said loop.

11 . A vehicle cooling system, comprising:
a fan; a radiator upstream of the fan; a charge air cooler upstream of the radiator; an air conduit connected to an air inlet of the charge air cooler; and a cooler comprising: a cooler housing surrounding a portion of the air conduit; an injector for injecting water into a space between the cooler housing and the air conduit; an outlet pipe for conducting vaporized water out of said space; and a pump for pumping water from a source to the injector.

12 . The cooling system of claim 11 , wherein:
the cooler further comprises a plurality of heat conducting vanes which extend into the space and into an interior of the air conduit, the vanes conducting heat away from the charge air which flows through the air conduit.

13 . The cooling system of claim 11 , wherein:
water and vaporized water flows over an outer surface of the air conduit in a first axial direction; and charge air flows through an interior of the air conduit in a second direction which opposite to said first direction.

14 . The cooling system of claim 11 , wherein:
the cooler comprises: a hollow inner sleeve inserted between an upstream portion of the air conduit and a downstream portion of the air conduit; a hollow outer sleeve which surrounds the inner sleeve and which forms an annular space therebetween; and a plurality of heat conducting vanes which extend into the annular space and into an interior of the inner sleeve, the vanes conducting heat away from charge air which flows through the inner conduit, the injector comprises at least one nozzle for injecting water into the annular space, and the outlet pipe being connected to the outer sleeve, so that water vaporized in the annular space can flow out of the annular space via the outlet pipe.

15 . The cooling system of claim 14 , wherein:
a hollow ring-shaped conduit surrounds a portion of the outer sleeve; a supply line connects the ring-shaped conduit with an outlet of a pump; and a plurality of spaced apart injector tubes are in communication with the ring-shaped conduit, each injector tube extending radially inwardly through the outer sleeve and forming a nozzle through which water from the ring-shaped conduit is injected into the annular space.

Assignees

• Deere & Co

Inventors

• Appleton Andy B

Classifications

• F02B29/0437

  Liquid cooled heat exchangers · CPC title

• F02B29/0462

  Liquid cooled heat exchangers · CPC title

• F01P5/10

  Pumping liquid coolant; Arrangements of coolant pumps · CPC title

• F02B61/00

  Adaptations of engines for driving vehicles or for driving propellers; Combinations of engines with gearing (the engine torque being divided by a differential gear for driving a scavenging or charging pump and the engine output shaft F02B39/06; adaptations or combinations of rotary-piston or oscillating-piston engines F02B53/14) · CPC title

• F02B29/0475 Primary

  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