Under-hood mounting configuration for a control unit of a work vehicle

Patent metadata

Field	Value
Publication number	US-9605629-B2
Application number	US-201414507973-A
Country	US
Kind code	B2
Filing date	Oct 7, 2014
Priority date	Feb 14, 2014
Publication date	Mar 28, 2017
Grant date	Mar 28, 2017

Abstract

An under-hood mounting configuration for a work vehicle may generally include an air intake component positioned upstream of an engine of the work vehicle. The air intake component may include a wall having an exterior surface and an interior surface. The wall may define a cooling port extending between the exterior surface and the interior surface. In addition, the under-hood mounting configuration may include a control unit having a housing defining an upper surface and a lower surface opposite the upper surface. The housing may be mounted to the wall along the exterior surface such that the housing is positioned directly over at least a portion of the cooling port. When the airflow is directed through the air intake component, a portion of the airflow may flow through the cooling port and may be directed towards the lower surface of the housing.

First claim

What is claimed is:

1. An under-hood mounting configuration for a work vehicle having an engine, the under-hood mounting configuration comprising:
an air intake system positioned upstream of the engine relative to an airflow directed through the air intake system to the engine, the air intake system comprising:
an intake conduit extending between an upstream end and a downstream end, the upstream end configured to initially receive the airflow directed through the air intake system;
a filter assembly coupled to the downstream end of the intake conduit, the filter assembly being configured to filter the airflow received from the intake conduit;
an output conduit providing a flow path between the filter assembly and the engine for supplying the filtered airflow to the engine; and
at least one aspiration component in flow communication with a portion of the filter assembly, the at least one aspiration component being configured to receive particulates expelled from the filter assembly;
wherein one of the intake conduit, the filter assembly or the at least one aspiration component includes a wall having an exterior surface and an interior surface, the wall defining a cooling port extending between the exterior surface and the interior surface; and

a control unit including a housing defining an upper surface and a lower surface opposite the upper surface, the housing being mounted to the wall along the exterior surface such that the housing is positioned directly over at least a portion of the cooling port,
wherein, when the airflow is directed through the air intake system, a portion of the airflow flows through the cooling port and is directed towards the lower surface of the housing.

2. The under-hood mounting configuration of claim 1 , wherein the wall forms part of the intake conduit of the air intake system.

3. The under-hood mounting configuration of claim 1 , wherein the wall forms part of the filter assembly of the air intake system.

4. The under-hood mounting configuration of claim 1 , wherein the wall forms part of the at least one aspiration component of the air intake system.

5. The under-hood mounting configuration of claim 4 , wherein the at least one aspiration component comprises an aspiration conduit coupled to a scavenge port of the filter assembly and an aspiration scoop coupled to the aspiration conduit.

6. The under-hood mounting configuration of claim 5 , further comprising a fan and a fan shroud at least partially surrounding the fan, the aspiration scoop extending through a portion of the fan shroud.

7. The under-hood mounting configuration of claim 1 , wherein the housing is mounted to the wall such that the housing covers the entire cooling port.

8. The under-hood mounting configuration of claim 1 , wherein the airflow flowing through the cooling port contacts the lower surface of the housing in order to provide convective cooling for the control unit.

9. A system for monitoring exhaust emissions of a work vehicle having an engine and an air intake system for supplying air to the engine, the system comprising:
an emission sensor in flow communication with an exhaust flow expelled from the engine, the emission sensor being configured to provide emission-related measurements associated with at least one gas contained within the exhaust flow;
a sensor control unit configured to receive the emission-related measurements from the exhaust sensor, the sensor control unit including a housing defining an upper surface and a lower surface opposite the upper surface; and
an air intake system positioned upstream of the engine relative to an airflow directed through the air intake system to the engine, the air intake system comprising:
an intake conduit extending between an upstream end and a downstream end, the upstream end configured to initially receive the airflow directed through the air intake system;
a filter assembly coupled to the downstream end of the intake conduit, the filter assembly being configured to filter the airflow received from the intake conduit;
an output conduit providing a flow path between the filter assembly and the engine for supplying the filtered airflow to the engine; and
at least one aspiration component in flow communication with a portion of the filter assembly, the at least one aspiration component being configured to receive particulates expelled from the filter assembly;
wherein one of the intake conduit, the filter assembly or the at least one aspiration component includes a wall having an exterior surface and an interior surface, the wall defining a cooling port extending between the exterior surface and the interior surface; and

wherein the housing of the sensor control unit is mounted to the wall along the exterior surface such that the housing is positioned directly over at least a portion of the cooling port and wherein, when the airflow is directed through the air intake system, a portion of the airflow flows through the cooling port and is directed towards the lower surface of the housing.

10. The system of claim 9 , wherein the wall forms part of the intake conduit of the air intake system.

11. The system of claim 9 , wherein the wall forms part of the filter assembly of the air intake system.

12. The system of claim 9 , wherein the wall forms part of the at least one aspiration component of the air intake system.

13. The system of claim 9 , wherein the housing is mounted to the wall such that the housing covers the entire cooling port.

14. The system of claim 9 , wherein the emission sensor comprises a NOx sensor.

15. The system of claim 9 , wherein the emission sensor is in flow communication with the exhaust flow directed through an exhaust conduit extending between the engine and a DOC system of the work vehicle.

16. The system of claim 9 , wherein the airflow flowing through the cooling port contacts the lower surface of the housing in order to provide convective cooling for the control unit.

17. The system of claim 12 , wherein the at least one aspiration component comprises an aspiration conduit coupled to a scavenge port of the filter assembly and an aspiration scoop coupled to the aspiration conduit.

18. The system of claim 17 , further comprising a fan and a fan shroud at least partially surrounding the fan, the aspiration scoop extending through a portion of the fan shroud.

Assignees

• Cnh Ind America Llc
• Cnh Ind America Llc

Inventors

• Morey Daniel

Classifications

• F01N3/0814

  combined with catalytic converters, e.g. NOx absorption/storage reduction catalysts · CPC title

• F02M35/10091

  characterised by details of intake ducts: shapes; connections; arrangements (ducts within or on the plenum chamber F02M35/10039) · CPC title

• F02M35/10242 Primary

  Devices or means connected to or integrated into air intakes; Air intakes combined with other engine or vehicle parts (filters F02M35/02; silencers F02M35/12 and F02M35/14; air coolers F02B29/04; heaters F02M31/00; air storage tanks F02B21/00; compressors F02B33/00; sensors F02M35/10373) · CPC title

• F01P2050/30

  Circuit boards · CPC title

• F02M35/164

  Heavy duty vehicles, e.g. trucks, trains, agricultural or construction machines · CPC title