Delphi Technologies, Inc.

Gm Global Technolgoy Operations, Inc.

Richard C Kuisell

Richard W Duce

Eric J Detwiler

Paul Casey Kikuchi

Joseph V Bonadies

Kathryn Mary McCauley

Carlos Augusto Valdes

Jeffrey T Coha

Wayne M Chadwick

Michel Carlé

Scott T Sanford

An oxygen sensor and a method for manufacturing the oxygen sensor are provided. The oxygen sensor includes a zirconia layer having first and second sides. The second side is opposite the first side. The oxygen sensor further includes a first electrode disposed on the first side of the zirconia layer. The oxygen sensor further includes a second electrode disposed on the second side of the zirconia layer. The oxygen sensor further includes a porous channel structure configured to route air therethrough to the first electrode while preventing hydrocarbons from flowing therethrough and contacting the first electrode, such that a signal between the first and second electrodes is indicative of an amount of oxygen in exhaust gases contacting the second electrode.

Oxygen sensor and method for manufacturing the oxygen sensor

A gas sensor seal () comprising a body (), an upper portion having a flange (), and at least one channel (). The flange () has an extension () that extends from the upper portion, a bend () which extends from the extension () along the body (), and a protrusion () which extends from the bend () toward the body (). The channel () extends through the body () from the upper portion to a lower surface (). A method for using the gas sensor seal () within a sensor () is also provided.

Gas sensor seal and method of producing same

A gas sensor is created comprising an electrochemical cell having a solid electrolyte layer disposed between an exhaust gas electrode and a reference electrode. A resistor is disposed in electrical communication with a heater and the reference electrode. The resistor can be disposed on a side of the gas sensor; on a side of the gas sensor such that the resistor is electrically connected through a via hole; over at least a portion of at least two sides of the gas sensor; or disposed in a void extending at least from the heater to the pump electrode, such that the void extends to at least a surface of the gas sensor, extends to at least partially through the gas sensor, or extends completely through the gas sensor. A method for using this gas sensor comprises applying a voltage to the heater within the gas sensor. A current is directed through the resistor to the reference electrode to pump oxygen into the reference electrode.

Method and device for pumping oxygen into a gas sensor

A method for applying and controlling current applied to an air reference oxygen sensor included in a vehicle exhaust system is disclosed. In an exemplary embodiment of the invention, the method includes measuring an output voltage across the oxygen sensor when the exhaust system is initially activated and applying a current through the oxygen sensor when the output voltage reaches a value determinative of light off of a catalyst within the exhaust system. The magnitude of the applied current corresponds to a predefined purge value.

Current control for a pumped air reference oxygen sensor

An oxygen sensor includes an elongated planar sensing element and a lower insulator sealably mounted within a tubular shield. The sensing element extends through a central opening disposed in the lower insulator into a sensing chamber. An annular glass support bonded at an end of the insulator is in non-bonding contact with the sensing end of the sensing element. A portion of the sensing element adjacent the glass support is coated with a carbon-based ink to prevent bonding of the glass support to the sensing element. In an alternative, a metal foil support may extend between the sensing element and the glass support. The metal support includes a plurality of dimples disposed on opposing walls that extend inwardly to contact and non-bindingly support the sensing element therein.

Growing community of inventors

Lapeer, MI, United States of America

Richard C Kuisell