Device, method, and system for emissions control

Patent metadata

Field	Value
Publication number	US-10125648-B2
Application number	US-201615354117-A
Country	US
Kind code	B2
Filing date	Nov 17, 2016
Priority date	May 2, 2011
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

Various embodiments for an exhaust gas treatment device for a vehicle system are provided. In one example, the vehicle system includes an engine with a longitudinal axis, where a crankshaft of the engine is parallel to the longitudinal axis and an exhaust gas treatment device mounted on the engine, vertically above the engine such that a longitudinal axis of the exhaust gas treatment device is aligned in parallel with the longitudinal axis of the engine, the exhaust gas treatment device configured to receive exhaust gas from an exhaust manifold of the engine.

First claim

What is claimed is:

1. A vehicle system, comprising:
an engine with a structure and a longitudinal axis, where a crankshaft of the engine is parallel to the engine longitudinal axis;
an exhaust gas treatment device coupled to the engine and disposed vertically above the engine such that a longitudinal axis of the exhaust gas treatment device is aligned in parallel with the engine longitudinal axis, the exhaust gas treatment device being configured to receive exhaust gas from an exhaust manifold of the engine; and
a support structure configured to support the exhaust gas treatment device, the support structure including a plurality of support legs, wherein the support structure is centered along a centerline of the engine,
one or more support legs of the plurality of support legs coupled to a first end of the engine structure, and another one or more support legs coupled to a second end of the engine structure, spaced from the first end, or to a wall or platform adjacent to the engine structure,
wherein the support structure includes a first platform and a second platform attached to the support legs and spaced away from one another and positioned on opposite sides of the centerline from one another, the first platform and the second platform extending along a length of the engine structure, and wherein the first platform and the second platform are angled at an angle, defined between the centerline and respective sides of the first and second platforms facing the exhaust gas treatment device, of greater than 0 degrees and less than 90 degrees, such that the first and second platforms cradle and support the exhaust gas treatment device both laterally and vertically.

2. The vehicle system of claim 1 , wherein at least one support leg of the plurality of support legs includes a first segment and a second segment, wherein each support leg is coupled to and between a respective cylinder head of the engine and a rail of one of the first platform or the second platform against which the exhaust gas treatment device sits.

3. The vehicle system of claim 1 , wherein the engine is a V-engine having a first bank and a second bank, and wherein the support structure is centered along the centerline of the V-engine.

4. The vehicle system of claim 3 , wherein a first rail is coupled to a first side of the first platform and a second rail is coupled to a first side of the second platform, the first rail and the second rail are positioned parallel with the crankshaft of the V-engine and wherein a second end of each support leg of the plurality of support legs is coupled to one of the first rail or the second rail.

5. The vehicle system of claim 3 , wherein the exhaust gas treatment device is positioned against the first platform and the second platform through a plurality of vibration isolators.

6. The vehicle system of claim 5 , wherein a first side of each vibration isolator of the plurality of vibration isolators is coupled to a second side of one of the first platform and the second platform and a second side of each vibration isolator of the plurality of vibration isolators is coupled to a surface of the exhaust gas treatment device and wherein the plurality of vibration isolators are positioned a distance away from one another, along a length of one of the first platform and the second platform.

7. The vehicle system of claim 5 , wherein the vibration isolators are metal coil type vibration isolators.

8. The vehicle system of claim 1 , further comprising at least one turbocharger positioned at an end of the engine and wherein the exhaust gas treatment device includes at least one of a selective catalytic reduction system and a particulate filter disposed downstream of the turbocharger.

9. The vehicle system of claim 1 , further comprising a turbocharger positioned at an end of the engine and wherein the exhaust gas treatment device includes at least one of an oxidation catalyst and a particulate filter.

10. The vehicle system of claim 9 , wherein the oxidation catalyst is disposed upstream of the particulate filter and wherein the oxidation catalyst is coated with a relatively lower temperature catalyst and the particulate filter is coated with a relatively higher temperature catalyst.

11. The vehicle system of claim 10 , wherein the low temperature catalyst is configured to operate under a first, low temperature range, and the high temperature catalyst is configured to operate under a second, high temperature range.

12. The vehicle system of claim 1 , wherein the angle is from 35 degrees to 60 degrees.

13. A vehicle system, comprising:
an engine cab defined by a roof assembly and side walls;
an engine positioned in the engine cab such that a longitudinal axis of the engine is aligned about in parallel with a length of the engine cab, the engine including an engine structure and an exhaust system configured to receive exhaust gas;
at least one turbocharger coupled to the engine and to the exhaust system;
an exhaust gas treatment device coupled to the engine and to the exhaust system, and the exhaust gas treatment device being configured to receive exhaust gas from the engine; and
a support structure mounted to the engine structure via one or more support legs and centered along a centerline of the engine, wherein the support structure is configured to support the exhaust gas treatment device vertically above the engine within a space defined by a top surface of an exhaust manifold of the engine, the roof assembly, and the side walls of the engine cab such that a longitudinal axis of the exhaust gas treatment device is aligned in parallel with the longitudinal axis of the engine;
wherein the support structure includes a first platform and a second platform attached to the support legs and spaced away from one another and positioned on opposite sides of the centerline from one another, the first platform and the second platform extending along a length of the engine structure, and wherein the first platform and the second platform are angled at an angle, defined between the centerline and respective sides of the first and second platforms facing the exhaust gas treatment device, of greater than 0 degrees and less than 90 degrees, such that the first and second platforms cradle and support the exhaust gas treatment device both laterally and vertically.

14. The vehicle system of claim 13 , wherein the exhaust gas treatment device includes at least one selective catalytic reduction catalyst system.

15. The vehicle system of claim 13 , wherein the exhaust gas treatment device is a non-selective catalytic reduction catalyst system including a particulate filter and an oxidation catalyst and not a selective catalyst reduction catalyst.

16. The vehicle system of claim 13 , wherein the support structure further comprises at least one set of vibration isolators disposed between the exhaust gas treatment device and the one or more support legs.

17. The vehicle system of claim 16 , wherein at least one vibration isolator of the set of vibration isolators includes a coil comprising at least one of metal and elastic material.

18. The vehicle system of claim 16 , wherein vibration isolators are positioned a distance from one another, along a first length of the support structure.

19. The vehicle system of claim 13 , wherein the angle is from 35 degrees to 60 degrees.

20. A vehicle system, comprising:
an engine having a centerline;
an exhaust gas treatment device coupled to the engine and disposed vertically above the engine; and
a support struc

Assignees

• Gen Electric

Inventors

• Flynn Paul Lloyd
• Arner James Edward
• Tiwari Shishir
• Kiran Shashi

Classifications

• Y02T10/144

  Cross-Sectional Technologies · mapped topic

• F01N3/035

  with catalytic reactors · CPC title

• Y02T10/24

  Cross-Sectional Technologies · mapped topic

• F01N3/2066 Primary

  Selective catalytic reduction [SCR] · CPC title

• F01N13/1822

  for fixing exhaust pipes or devices to vehicle body · CPC title