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US 7,887,685 B2Granted
Multilayer gas sensor having dual heating zones
AssigneeCaterpillar Inc.
InventorsBalakrishnan G. Nair, Jesse Alan Nachlas
Life of this patent
Estimating the term…
Abstract
A gas sensor for detecting NOX is provided. The gas sensor may have a plurality of substrate members, a first sensing electrode, and a second sensing electrode. The gas sensor may also have a first heater element associated with the first sensing electrode and being located on a first side of one of the plurality of substrate members, and a second heater element associated with the second sensing electrode and being located on a second opposing side of the one of the plurality of substrate members.
Claims21
A gas sensor, comprising:
- a plurality of substrate members;
- a first sensing electrode;
- a second sensing electrode;
- a first heater element associated with the first sensing electrode and being attached to a first side of one of the plurality of substrate members;
- and
- a second heater element associated with the second sensing electrode and being attached to a second opposing side of the one of the plurality of substrate members, wherein the one of the plurality of substrate members has a first dimension greater than a second dimension, and the second heater element is spaced apart from the first heater element in a first direction corresponding with the first dimension.
3 more elements
A gas sensor, comprising:
- a substrate member having a first surface and a second surface opposite the first surface;
- a first sensing electrode;
- a second sensing electrode
- only a single heater element associated with the first sensing electrode and being bonded to the first surface;
- and
- only a single heater element associated with the second sensing electrode and being bonded to the second surface, wherein the substrate member has a first dimension greater than a second dimension, and the single heater element bonded to the second surface is spaced apart from the single heater element bonded to the first surface in a first direction corresponding with the first dimension.
3 more elements
Dependencies are inferred from the claim text.