Patent · US Active

Circular sampling device for an exhaust gas sensor

US11203966B1 · kind B1 · utility

0Cited by

9References

20Claims

0Family size

Assignee

Faurecia Emissions Control Technologies, USA, LLC · US

Inventors

Philip M. Dimpelfeld · Columbus, US
Aejaz Ahmed · Bengaluru, IN

Key dates

Filing date	Sep 30, 2020
Grant date	Dec 21, 2021
Priority date	—
Expiry date	Sep 30, 2040

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldEnvironmental technology
WIPO sectorChemistry

Abstract

An exhaust system includes an exhaust duct having an internal surface defining an exhaust gas passage extending along an axis. At least one sensor opening is in the exhaust duct and is configured to receive an exhaust gas sensor. A wall is positioned within the exhaust gas passage to extend at least partially around the at least one sensor opening. The wall has an inner wall surface defining an internal volume. An inlet pipe ring is in fluid communication with the internal volume, and the inlet pipe ring extends from a first end open to the internal volume to a second end this is also in fluid communication with the internal volume. The inlet pipe ring includes a plurality of inlet apertures.

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