公开(公告)号：US20210156816A1

公开(公告)日：2021-05-27

申请号：US16696417

申请日：2019-11-26

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： CHARLES S. NELSON ,  GOPINATH PENAMALLI

IPC: G01N27/407 ,  F01N13/00

Abstract: A particulate matter sensor includes a shield through which exhaust gases flow in a direction of flow from upstream to downstream. A sensing element with a positive electrode and a negative electrode separated from the positive electrode by an electrode gap is located within the shield. The positive electrode includes a plurality of positive electrode branches each having positive electrode extensions extending downstream and separated from each other by positive electrode slots. A positive electrode extension tip for each has a positive electrode extension tip width. The negative electrode includes negative electrode branches each having negative electrode extensions extending upstream which are each flanked on each side thereof by a plurality of negative electrode slots. A negative electrode extension tip for each has a negative electrode extension tip width. A sum of the positive electrode extension tip widths is greater than a sum of the negative electrode extension tip widths.

公开(公告)号：US20210047958A1

公开(公告)日：2021-02-18

申请号：US16537840

申请日：2019-08-12

Applicant: DELPHI TECHNOLOGIES IP LIMITED

Inventor： CHARLES S. NELSON

IPC: F01N11/00 ,  G01N27/407

Abstract: An exhaust sensor includes a sensing element with a ceramic sensing element substrate and a sensing element terminal which is electrically conductive and which is supported by the ceramic sensing element substrate such that the sensing element is configured to sense constituents of exhaust gases when exposed thereto. The exhaust sensor also includes a mating terminal which is electrically conductive and which is in electrical communication with the sensing element terminal. The mating terminal has a base material and a clad material bonded to the base material such that the clad material contacts the sensing element terminal and such that the clad material is located between the sensing element terminal and the base material, thereby providing the electrical communication. The clad material is an alloy which is less than or equal to 20% iron, greater than or equal to 40% nickel, and greater than or equal to 13% chromium.