公开(公告)号：US20200300143A1

公开(公告)日：2020-09-24

申请号：US16359882

申请日：2019-03-20

Applicant: Caterpillar Inc.

Inventor： Kurtis CHENOWETH ,  Jason HUDGENS ,  Xiaohui GONG ,  Shivsinh PARMAR

IPC: F01N3/20 ,  F01N3/28

Abstract: A diesel exhaust fluid (DEF) system and a method of controlling the DEF system are disclosed. The method may include determining that a shutdown condition of the DEF system is satisfied; providing a control signal to open a valve of a buffer tank of the DEF system based on determining that the shutdown condition of the DEF system is satisfied; determining that a level of DEF remaining in the buffer tank satisfies a threshold; and closing the valve of the buffer tank based on the level of DEF remaining in the buffer tank satisfying the threshold.

公开(公告)号：US20200224578A1

公开(公告)日：2020-07-16

申请号：US16245952

申请日：2019-01-11

Applicant: Caterpillar Inc.

Inventor： Ryan Rieboldt ,  Scott PETERS ,  Jason HUDGENS

IPC: F01N13/10 ,  F01N13/14 ,  F16L59/02

Abstract: An insulation system for an aftertreatment system includes a first insulating element including at least one slit, and a second insulating element including a plurality of fingers extending from opposing sides of an aperture. The second insulating element is couplable to the first insulating element, and when the second insulating element is coupled to the first insulating element, the plurality of fingers overlap the at least one slit.