公开(公告)号：US20200300146A1

公开(公告)日：2020-09-24

申请号：US16359885

申请日：2019-03-20

Applicant: Caterpillar Inc.

Inventor： Kurtis CHENOWETH ,  Jianping PAN ,  Mohamed DAOUD ,  Srinivasa Perumal VELU ,  Arvind JUJARE ,  Y. T. BUI

IPC: F01N3/28 ,  B01F11/00 ,  F01N3/20

Abstract: A selective catalytic reduction (SCR) system is disclosed. The SCR system may include a mixing tube with a mixing tube inlet; a diesel exhaust fluid (DEF) injector proximate to the mixing tube inlet; and a flow control device proximate to the mixing tube inlet, wherein the flow control device is positioned within the mixing tube or affixed to the mixing tube inlet, and wherein the flow control device includes a plurality of vanes arranged around a center of the flow control device.

公开(公告)号：US20200300137A1

公开(公告)日：2020-09-24

申请号：US16359726

申请日：2019-03-20

Applicant: Caterpillar Inc.

Inventor： Kurtis CHENOWETH ,  Jianping PAN ,  Mohamed DAOUD ,  Ian AGUIRRE ,  Y. T. BUI

IPC: F01N3/00 ,  F01N3/10 ,  F01N3/28

Abstract: An aftertreatment module is disclosed. The aftertreatment module may include a housing and a mounting plate within the housing that forms an inlet chamber and an outlet chamber. The aftertreatment module may include an inlet for exhaust gas from a combustion engine to flow into the inlet chamber and an outlet through a top plate of the housing for the exhaust gas to flow from the outlet chamber, wherein the outlet comprises a plurality of perforations. The aftertreatment module may include an outlet sensor mounted on the outlet to obtain information relating to the exhaust gas as the exhaust gas flows from the outlet chamber and a set of catalysts mounted to the mounting plate to treat the exhaust gas as the exhaust gas flows from the inlet chamber to the outlet chamber. The aftertreatment module may include a drain port through a side plate of the housing.