Fluid delivery system for exhaust aftertreatment system
US10815852B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 22, 2018 |
| Grant date | Oct 27, 2020 |
| Priority date | — |
| Expiry date | Mar 30, 2039 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A fluid delivery system for an exhaust aftertreatment system includes a pump disposed within an outer housing. A filter assembly is in fluid communication with the pump and also disposed within the outer housing. A tubular filter medium is disposed within a pump housing. An elongated first compensation element is disposed within an elongated aperture of the filter medium. A support ring is associated with the pump housing and includes a plurality of flexible arms. Second and third compensation elements are also provided to contract in response to expansion of fluid within the pump housing due to freezing and expand in response to thawing of the fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.