公开(公告)号：WO2021021378A1

公开(公告)日：2021-02-04

申请号：PCT/US2020/040462

申请日：2020-07-01

Applicant: CATERPILLAR INC.

Inventor： DENIS, Andrew M. ,  XIAO, Min ,  CHEN, Wengang ,  ZHANG, Zhenhua ,  ZHU, Qiang ,  DAOUD, Mohamed

IPC: F01N3/28 ,  F01N9/00 ,  F01N13/00 ,  G01M15/10

Abstract: A NOx sensor protection system (130) includes a flow control device (131) forming an internal chamber (134) with exhaust and shield gas ports (141, 150) and a NOx sensor (118, 120). The flow control device (131) is configured to selectively allow a flow of exhaust from an exhaust pipe (112) to the NOx sensor (118, 120) when an internal combustion engine (102) is operated with a first fuel, and to selectively direct shield gas from the shield gas port (150) at an angle of 135° to 180° to the NOx sensor (118, 120) to inhibit the flow of exhaust from the exhaust pipe (112) to the NOx sensor (118, 120) when the engine (102) is operated with a second fuel.

公开(公告)号：WO2010056802A3

公开(公告)日：2010-05-20

申请号：PCT/US2009/064124

申请日：2009-11-12

Applicant: CATERPILLAR INC. ,  BLOMS, Jason, K. ,  DAOUD, Mohamed ,  EAGER, Antony, J. ,  EHRENHARDT, Kevin, D. ,  GRIVETTI, Tazio, S. ,  KAPPAROS, David, J. ,  LEUSTEK, Matthew, E. ,  RODMAN, Anthony, C. ,  SEVERNS, Richard, II ,  ZHANG, Yanchai

Inventor： BLOMS, Jason, K. ,  DAOUD, Mohamed ,  EAGER, Antony, J. ,  EHRENHARDT, Kevin, D. ,  GRIVETTI, Tazio, S. ,  KAPPAROS, David, J. ,  LEUSTEK, Matthew, E. ,  RODMAN, Anthony, C. ,  SEVERNS, Richard, II ,  ZHANG, Yanchai

IPC: F01N11/00 ,  F01N3/18

Abstract: An exhaust component (26) for use with a combustion engine (12) is disclosed. The exhaust component may have a housing (28) at least partially defining an inlet (30) and an outlet (32), and a treatment device (34) supported by the housing in communication with exhaust passing from the inlet to the outlet. The exhaust component may also have a life indicator (36) permanently associated with at least one of the housing and the treatment device.

公开(公告)号：WO2020190447A1

公开(公告)日：2020-09-24

申请号：PCT/US2020/019190

申请日：2020-02-21

Applicant: CATERPILLAR INC.

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

IPC: F01N3/20 ,  F01N3/28 ,  F01N13/00 ,  F01N13/08

Abstract: An exhaust gas aftertreatment system is disclosed. The system may include an inlet to receive an exhaust gas produced by an engine and a first section to receive the exhaust gas from the inlet. The system may include a mixing tube to receive the exhaust gas from the first section and a reductant injector to inject a reductant into the mixing tube. The system may include a second section to receive the exhaust gas from the mixing tube and to facilitate mixing of the reductant and the exhaust gas after the exhaust gas exits the mixing tube and a diffuser to receive the exhaust gas from the second section. The system may include a plurality of catalysts to receive the exhaust gas from the diffuser and at least one outlet to receive the exhaust gas from the plurality of catalysts.

公开(公告)号：WO2020190475A1

公开(公告)日：2020-09-24

申请号：PCT/US2020/020253

申请日：2020-02-28

Applicant: CATERPILLAR INC.

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

IPC: F01N3/20 ,  F01N3/28

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：WO2017058971A1

公开(公告)日：2017-04-06

申请号：PCT/US2016/054269

申请日：2016-09-29

Applicant: CATERPILLAR INC.

Inventor： DAOUD, Mohamed ,  BUI, Yung T. ,  JUJARE, Arvind ,  WEISS, Kevin

IPC: F01N3/20 ,  F01N3/28 ,  F01N13/00

CPC classification number: B01D53/9431 ,  B01D2251/2062 ,  B01D2255/90 ,  F01N3/021 ,  F01N3/206 ,  F01N3/2066 ,  F01N3/2892 ,  F01N3/2896 ,  F01N13/011 ,  F01N13/017 ,  F01N2240/20 ,  F01N2590/08 ,  F01N2610/02 ,  F01N2610/1453 ,  Y02T10/24

Abstract: A system (212) for uniform flow distribution of a reductant is disclosed. The system (212) includes an injector lance (218) and a diffuser assembly (220). The injector lance (218) further includes a reductant supply conduit (222) and an injector nozzle (224). The reductant supply conduit (222) extends into an internal diameter (D) of an exhaust conduit (106) from a first end (308) of the exhaust conduit (106) towards a second end (310) of the exhaust conduit (106). The injector lance (218) is in communication with and extends perpendicular to the reductant supply conduit (222). The injector lance (218) is located along a longitudinal axis of the exhaust conduit (106). The diffuser assembly (220) is further collocated or integral with the injector lance (218).

Abstract translation: 公开了用于还原剂的均匀流动分配的系统（212）。 系统（212）包括喷射器喷枪（218）和扩散器组件（220）。 喷射器喷枪（218）还包括还原剂供应管道（222）和喷射器喷嘴（224）。 还原剂供应管道（222）从排气管道（106）的第一端（308）延伸到排气管道（106）的内径（D），朝向排气管道（106）的第二端（310） 。 喷射器喷枪（218）与还原剂供应导管（222）连通并垂直于还原剂供应导管（222）延伸。 喷射器喷枪（218）沿着排气管道（106）的纵向轴线定位。 扩散器组件（220）进一步与喷射器喷枪（218）配合或一体。