Patent · US Active

Method and apparatus to enhance fractional efficiency of diesel and gasoline particulate filters

US11519310B2 · kind B2 · utility

0Cited by

4References

24Claims

0Family size

Assignee

Cummins Emission Solutions Inc. · US

Inventors

Changsheng C. Su · Columbus, US
A. Carl McDonald · Greenwood, US
Ramakrishna Gopal Dontha · Columbus, US
Niklas M. Schmidt · Madison, US
Nathan A. Ottinger · Lenoir City, US
Z. Gerald Liu · Madison, US
James C. Clerc · Columbus, US
Yujun Wang · Columbus, US

Key dates

Filing date	Feb 15, 2019
Grant date	Dec 6, 2022
Priority date	—
Expiry date	Feb 15, 2039

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/40
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

An exhaust aftertreatment system for increasing fractional efficiency of diesel or gasoline particulate filters includes a particulate filter that includes a housing and a filter substrate positioned in the housing. The filter substrate is pre-conditioned with an aqueous solution or suspension configured to decompose or evaporate in response to exposure to heat so as to precondition the filter substrate.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.