Sensor table for single unit aftertreatment system

• US 10,865,690 B2
• Filed: 12/11/2018
• Issued: 12/15/2020
• Est. Priority Date: 04/28/2014
• Status: Active Grant

• Current Assignee: Cummins Emission Solutions Inc.
• Original Assignee: Cummins Emission Solutions Inc.
• Inventors: Butler, Eric R., Komisarek, Andrew, Runde, William J.
• Primary Examiner(s): Bradley, Audrey K
• Application Number:
  US16/216,747
• Publication Number:
  US 20190120114A1
• Time in Patent Office: 735 Days
• CPC Class Codes: F01N 11/002 the diagnostic devices measuring or estimating temperature or pressure in, or downstream of the exhaust apparatus
• CPC Class Codes: F01N 11/007 the diagnostic devices measuring oxygen or air concentration downstream of the exhaust apparatus
• CPC Class Codes: F01N 13/008 Mounting or arrangement of exhaust sensors in or on exhaust apparatus sensor arrangements for engine control F02D41/1439
• CPC Class Codes: F01N 13/148 Multiple layers of insulating material
• CPC Class Codes: F01N 13/18 Construction facilitating manufacture, assembly, or disassembly
• CPC Class Codes: F01N 2260/20 for heat or sound protection, e.g. using a shield or specially shaped outer surface of exhaust device
• CPC Class Codes: F01N 2560/026 for measuring or detecting NOx
• CPC Class Codes: F01N 2560/05 the means being a particulate sensor
• CPC Class Codes: F01N 2560/06 the means being a temperature sensor
• CPC Class Codes: F01N 2560/08 the means being a pressure sensor
• CPC Class Codes: F01N 3/021 by means of filters
• CPC Class Codes: F01N 3/2066 Selective catalytic reduction [SCR]

Abstract

A sensor mounting table for mounting sensors to an aftertreatment system may include a sensor mounting plate having a substantially flat mounting surface for mounting one or more sensors associated with the aftertreatment system. The substantially flat mounting surface may be offset from a heat shield of the aftertreatment system. The sensor mounting table may further include an insulative material disposed between at least a portion of the substantially flat mounting surface of the sensor mounting plate and the heat shield. The sensor mounting plate may be configured to be attached to the aftertreatment system to secure the insulative material between the substantially flat mounting surface of the sensor mounting plate and the heat shield.

Claims

1. A sensor mounting system comprising:

a first sensor mounting plate configured to be mounted to an aftertreatment system, the first sensor mounting plate comprising a first substantially flat mounting surface for mounting a first sensor; and

a second sensor mounting plate configured to be mounted to the aftertreatment system, the second sensor mounting plate comprising a second substantially flat mounting surface for mounting a second sensor,

wherein the second sensor mounting plate is attached to the first sensor mounting plate,

wherein the first sensor mounting plate further comprises a first bend portion extending substantially perpendicular to the first substantially flat mounting surface;

wherein the second sensor mounting plate is attached to the first sensor mounting plate via the first bend portion;

wherein the first sensor mounting plate further comprises additional bend portions extending substantially perpendicular to the first substantially flat mounting surface; and

wherein the additional bend portions are not attached to the second sensor mounting plate.

2. The sensor mounting system of claim 1, wherein the first bend portion forms a channel between the first sensor mounting plate and a heat shield of the aftertreatment system.

3. The sensor mounting system of claim 1, wherein the first sensor mounting plate and the second sensor mounting plate each comprise a single sheet stamped metal.

4. The sensor mounting system of claim 1, wherein the first substantially flat mounting surface is substantially perpendicular to the second substantially flat mounting surface.

5. The sensor mounting system of claim 1, wherein the second sensor mounting plate further comprises a second bend portion extending substantially perpendicular to the second substantially flat mounting surface, wherein the second bend portion is substantially parallel to the first substantially flat mounting surface.

6. The sensor mounting system of claim 1, wherein the first sensor mounting plate is substantially L-shaped.

7. The sensor mounting system of claim 1, wherein the first sensor mounting plate is directly welded to a heat shield of the aftertreatment system.

8. A sensor mounting system comprising:

a first sensor mounting plate configured to be mounted to an aftertreatment system, the first sensor mounting plate comprising a first substantially flat mounting surface for mounting a first sensor; and

a second sensor mounting plate configured to be mounted to the aftertreatment system, the second sensor mounting plate comprising a second substantially flat mounting surface for mounting a second sensor,

wherein the second sensor mounting plate is attached to the first sensor mounting plate;

wherein the second sensor mounting plate further comprises a first bend portion extending substantially perpendicular to the second substantially flat mounting surface;

wherein the first bend portion is substantially parallel to the first substantially flat mounting surface; and

wherein the second sensor mounting plate further comprises a second bend portion extending substantially perpendicular to the first bend portion and towards the first substantially flat mounting surface.

9. A sensor mounting system comprising:

a first sensor mounting plate configured to be mounted to an aftertreatment system, the first sensor mounting plate comprising a first substantially flat mounting surface for mounting a first sensor; and

a second sensor mounting plate configured to be mounted to the aftertreatment system, the second sensor mounting plate comprising a second substantially flat mounting surface for mounting a second sensor,

wherein the second sensor mounting plate is attached to the first sensor mounting plate;

wherein the second sensor mounting plate further comprises a first bend portion extending substantially perpendicular to the second substantially flat mounting surface;

wherein the first bend portion is substantially parallel to the first substantially flat mounting surface;

wherein the second sensor mounting plate further comprises a second bend portion extending substantially perpendicular to the first bend portion and towards the first substantially flat mounting surface; and

wherein the second sensor mounting plate is attached to the first sensor mounting plate via the second bend portion.