公开(公告)号：US09103600B2

公开(公告)日：2015-08-11

申请号：US13724003

申请日：2012-12-21

Applicant: Caterpillar Inc.

Inventor： Matthew Fahrenkrug ,  Scott Schuricht ,  Richard Crandell

IPC: F01N3/00 ,  F28D15/00

CPC classification number: F28D15/00 ,  F01N3/0253 ,  F01N3/2066 ,  F01N13/009 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/11 ,  F01N2610/1406 ,  F01N2610/1473 ,  Y02T10/24 ,  Y10T137/85978

Abstract: A system for cooling a reductant injector in an emissions module is provided. The system includes an emissions module, coupled to an engine exhaust duct, and a cooling system fluidly coupled to the emissions module. The emissions module includes a reductant system and a selective catalytic reduction (SCR) module. The reductant system includes a reductant injector having a cooling passage. The cooling system includes a reservoir tank, a supply pump fluidly coupled to the reservoir tank, and a siphon tank fluidly coupled to the supply pump and the reductant injector cooling passage. The siphon tank is disposed proximate to the reductant injector, and a gravitational elevation of a base of the siphon tank is greater than a gravitational elevation of the reductant injector.

Abstract translation: 提供了用于冷却排放模块中的还原剂喷射器的系统。 该系统包括耦合到发动机排气管道的排放模块和与该排放模块流体耦合的冷却系统。 排放模块包括还原剂系统和选择性催化还原（SCR）模块。 还原剂系统包括具有冷却通道的还原剂注入器。 冷却系统包括储存罐，流体地联接到储存罐的供应泵，以及流体耦合到供应泵和还原剂喷射器冷却通道的虹吸管。 虹吸槽靠近还原剂注入器设置，并且虹吸槽的底部的重力高度大于还原剂喷射器的重力高度。

公开(公告)号：US20140174696A1

公开(公告)日：2014-06-26

申请号：US13724003

申请日：2012-12-21

Applicant: CATERPILLAR INC.

Inventor： Matthew Fahrenkrug ,  Scott Schuricht ,  Richard Crandell

IPC: F28D15/00

CPC classification number: F28D15/00 ,  F01N3/0253 ,  F01N3/2066 ,  F01N13/009 ,  F01N2610/02 ,  F01N2610/03 ,  F01N2610/11 ,  F01N2610/1406 ,  F01N2610/1473 ,  Y02T10/24 ,  Y10T137/85978

Abstract: A system for cooling a reductant injector in an emissions module is provided. The system includes an emissions module, coupled to an engine exhaust duct, and a cooling system fluidly coupled to the emissions module. The emissions module includes a reductant system and a selective catalytic reduction (SCR) module. The reductant system includes a reductant injector having a cooling passage. The cooling system includes a reservoir tank, a supply pump fluidly coupled to the reservoir tank, and a siphon tank fluidly coupled to the supply pump and the reductant injector cooling passage. The siphon tank is disposed proximate to the reductant injector, and a gravitational elevation of a base of the siphon tank is greater than a gravitational elevation of the reductant injector.

Abstract translation: 提供了用于冷却排放模块中的还原剂喷射器的系统。 该系统包括耦合到发动机排气管道的排放模块和与该排放模块流体耦合的冷却系统。 排放模块包括还原剂系统和选择性催化还原（SCR）模块。 还原剂系统包括具有冷却通道的还原剂注入器。 冷却系统包括储存罐，流体地联接到储存罐的供应泵，以及流体耦合到供应泵和还原剂喷射器冷却通道的虹吸管。 虹吸槽设置在靠近还原剂注入器处，并且虹吸槽的底部的重力高度大于还原剂喷射器的重力高度。