Remote diesel oxidation catalyst for a prime mover of a transport power system

Patent metadata

Field	Value
Publication number	US-2025084779-A1
Application number	US-202418827027-A
Country	US
Kind code	A1
Filing date	Sep 6, 2024
Priority date	Sep 8, 2023
Publication date	Mar 13, 2025
Grant date	—

Abstract

A transport power system for generating power is provided. The transport power system includes an extended mid-pipe having a flexible member and an insulated member that is connected to the flexible member. The flexible member is coupled to an exhaust manifold disposed on a diesel prime mover that is configured to generate exhaust. The extended mid-pipe is configured to receive the exhaust from the exhaust manifold. The diesel oxidation catalyst (DOC) is coupled to the insulated member. The transport power system also includes a housing containing the DOC and the diesel prime mover. The DOC is positioned away from the diesel prime mover such that the DOC is configured to be unstacked in a depth direction of the housing. The insulated member is configured to maintain a temperature of the exhaust to at or above an activation temperature of the DOC.

First claim

What is claimed is:

1 . A transport power system for generating power, the transport power system comprising:
an extended mid-pipe having a flexible member and an insulated member that is connected to the flexible member, the flexible member coupled to an exhaust manifold disposed on a diesel prime mover that is configured to generate exhaust, wherein the extended mid-pipe is configured to receive the exhaust from the exhaust manifold; a diesel oxidation catalyst (DOC) coupled to the insulated member; and a housing containing the DOC and the diesel prime mover, wherein the DOC is positioned away from the diesel prime mover such that the DOC is configured to be unstacked in a depth direction of the housing, and wherein the insulated member is configured to maintain a temperature of the exhaust to at or above an activation temperature of the DOC.

2 . The transport power system of claim 1 , further comprising:
a mounting bracket that fixedly attaches the DOC to the housing, wherein the flexible member is structurally configured to dampen vibration created by the diesel prime mover.

3 . The transport power system of claim 1 , wherein
the insulated member includes a rigid pipe that is covered by an insulation.

4 . The transport power system of any one of claim 1 , wherein
the insulated member extends upward and laterally away from the diesel prime mover for an outlet of the extended mid-pipe to couple with the DOC.

5 . The transport power system of claim 1 , wherein the depth direction of the housing, upon the housing being installed onto a transport unit, corresponds to a length direction of the transport unit such that a width of the housing fits within a clearance on an end of the transport unit.

6 . The transport power system of claim 1 , wherein the DOC is not mounted on the diesel prime mover.

7 . The transport power system of claim 1 , wherein the flexible member includes a convoluted stainless steel tube disposed over a corrugated tube.

8 . The transport power system of claim 1 , wherein the insulated member includes a stainless steel tube covered by an insulation.

9 . An extended mid-pipe for an exhaust assembly of a transport power system that is configured to generate power, the extended mid-pipe comprising:
a flexible member configured to receive an exhaust from a diesel prime mover; and an insulated member disposed between the flexible member and a diesel oxidation catalyst (DOC), the insulated member configured to maintain a temperature of the exhaust at or above an activation temperature of the DOC, wherein the flexible member is configured to be coupled to and extend from the prime mover, and wherein the insulated member extends in a horizontal direction and then in an upward direction such that an outlet of the extended mid-pipe is configured to be connected to the DOC that is disposed away from an inlet of the extended mid-pipe such that the DOC is configured to be unstacked with the prime mover in a depth direction of a housing containing the DOC and the prime mover.

10 . The extended mid-pipe of claim 9 , wherein the flexible member is configured to dampen vibration created by the prime mover.

11 . The extended mid-pipe of claim 9 , wherein the insulated member includes a rigid pipe that is covered by an insulation.

12 . The extended mid-pipe of claim 9 , wherein the flexible member includes a convoluted stainless steel tube disposed over a corrugated tube.

13 . The extended mid-pipe of claim 9 , wherein the insulated member includes a stainless steel tube covered by an insulation.

Assignees

• Thermo King Llc

Inventors

• Lucht Erich A
• Gleason Kyle J

Classifications

• F01N13/14

  having thermal insulation {(exhaust manifolds F01N13/102)} · CPC title

• F01N3/28 Primary

  Construction of catalytic reactors · CPC title

• F01N3/20 Primary

  specially adapted for catalytic conversion (F01N3/22 takes precedence) · CPC title

• F01N2260/20

  for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device · CPC title

• F01N2590/08

  for heavy duty applications, e.g. trucks, buses, tractors, locomotives · CPC title