公开(公告)号：US20210025314A1

公开(公告)日：2021-01-28

申请号：US16523628

申请日：2019-07-26

Applicant: Caterpillar Inc.

Inventor： Andrew M. Denis ,  Min Xiao ,  Wengang Chen ,  Zhenhua Zhang ,  Qiang Zhu ,  Mohamed I. Daoud

IPC: F01N13/00 ,  F01N11/00 ,  F01N13/08

Abstract: A NOx sensor protection system includes a flow control device forming an internal chamber with exhaust and shield gas ports and a NOx sensor. The flow control device is configured to selectively allow a flow of exhaust from an exhaust pipe to the NOx sensor when an internal combustion engine is operated with a first fuel, and to selectively direct shield gas from the shield gas port at an angle of 135° to 180° to the NOx sensor to inhibit the flow of exhaust from the exhaust pipe to the NOx sensor when the engine is operated with a second fuel.

公开(公告)号：US10480387B2

公开(公告)日：2019-11-19

申请号：US15427104

申请日：2017-02-08

Applicant: Caterpillar Inc.

Inventor： Andrew M. Denis ,  Zhang Zhenhua ,  Min Xiao ,  Julian Justin ,  Jun Zuo

IPC: F01N13/18 ,  F01N3/20 ,  F01N13/00 ,  F01N3/10 ,  F01N3/021

Abstract: A housing for an aftertreatment system is disclosed. The housing includes a wall that defines an interior cavity. The interior cavity is configured to enclose at least one aftertreatment component. Moreover, the wall has at least one corrugated panel having alternating grooves and ridges.

公开(公告)号：US20180223719A1

公开(公告)日：2018-08-09

申请号：US15427104

申请日：2017-02-08

Applicant: Caterpillar Inc.

Inventor： Andrew M. Denis ,  Zhang Zhenhua ,  Min Xiao ,  Julian Justin ,  Jun Zuo

IPC: F01N13/18

Abstract: A housing for an aftertreatment system is disclosed. The housing includes a wall that defines an interior cavity. The interior cavity is configured to enclose at least one aftertreatment component. Moreover, the wall has at least one corrugated panel having alternating grooves and ridges.

公开(公告)号：US11098631B2

公开(公告)日：2021-08-24

申请号：US16523628

申请日：2019-07-26

Applicant: Caterpillar Inc.

Inventor： Andrew M. Denis ,  Min Xiao ,  Wengang Chen ,  Zhenhua Zhang ,  Qiang Zhu ,  Mohamed I. Daoud

IPC: F01N13/08 ,  F01N13/00 ,  F01N11/00

Abstract: A NOx sensor protection system includes a flow control device forming an internal chamber with exhaust and shield gas ports and a NOx sensor. The flow control device is configured to selectively allow a flow of exhaust from an exhaust pipe to the NOx sensor when an internal combustion engine is operated with a first fuel, and to selectively direct shield gas from the shield gas port at an angle of 135° to 180° to the NOx sensor to inhibit the flow of exhaust from the exhaust pipe to the NOx sensor when the engine is operated with a second fuel.