公开(公告)号：US10975743B1

公开(公告)日：2021-04-13

申请号：US16818069

申请日：2020-03-13

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Guangchun Quan

IPC: F01N1/02 ,  B01D53/94 ,  F01N3/28 ,  B01D46/42 ,  C23C24/04

Abstract: An exhaust component for a motor vehicle includes a wall, an internal volume, an inlet, and an outlet. The wall includes a core layer having a surface and a first layer disposed on a portion of the surface. The portion is less than 100 percent of an area of the surface. The core layer has a first composition. The first layer is a cold-sprayed layer. The core layer has a second composition different from the first composition. The first layer reduces surface-radiated noise from the exhaust component during operation of the motor vehicle. The internal volume is at least partially defined by the wall. The inlet is in fluid communication with the internal volume. The outlet is in fluid communication with the internal volume.

公开(公告)号：US11268430B2

公开(公告)日：2022-03-08

申请号：US16250419

申请日：2019-01-17

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Guangchun Quan

IPC: F01N13/16 ,  F01N13/08 ,  F01N13/18 ,  B32B15/01 ,  C22C38/18 ,  C23C10/04 ,  C23C10/32

Abstract: An exhaust component for a motor vehicle with improved corrosion resistance, including an internal volume, an inlet for receiving exhaust gas, and an outlet for expelling exhaust gas. The exhaust component includes at least one wall that is made of a diffusion surface alloyed metal sheet. The diffusion surface alloyed metal sheet comprises a secondary metal that is formed to a primary metal substrate by diffusion. A weld bead is applied to at least one of the edges of the diffusion surface alloyed metal sheet for edge protection or to join the edge of the diffusion surface alloyed metal sheet to another diffusion surface alloyed metal sheet. The weld bead includes a high chromium content filler metal to protect the weld bead and the primary metal substrate at the weld joint from corrosion.

公开(公告)号：US11268429B2

公开(公告)日：2022-03-08

申请号：US16250388

申请日：2019-01-17

Applicant: Tenneco Automotive Operating Company Inc.

Inventor： Guangchun Quan ,  Michael Golin

IPC: F01N13/16 ,  F01N13/08 ,  F01N13/18 ,  B32B15/01 ,  F01N3/24 ,  C23C10/04 ,  C22C38/18 ,  C23C10/32

Abstract: An exhaust component for a motor vehicle with improved corrosion resistance, including a housing with outer walls that define an internal volume and one or more inner walls that divide the internal volume into an exhaust chamber and an interior chamber. The interior chamber is isolated from the exhaust chamber and the external environment. At least part of one outer wall or one inner wall is made of a diffusion surface alloyed metal sheet. The diffusion surface alloyed metal sheet comprises a secondary metal that is formed to a primary metal substrate by diffusion. The diffusion surface alloyed metal sheet includes edges that are oriented toward and exposed to the interior chamber. As a result, the primary metal substrate at the edges of the diffusion surface alloyed metal sheet is protected from exposure to corrosives such as salt spray in the external environment and urea in the exhaust chamber respectively.