Systems and methods for fluid level and quality measurement for reductant storage systems
AssigneeCaterpillar Inc.
InventorKevin L. DEA
Life of this patent
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Abstract
A reductant storage system for an internal combustion engine system includes a storage container having a bottom wall, a top wall opposite the bottom wall, an opening extending through the top wall, and a reservoir formed by a hollow interior of the storage container; a filter assembly; and a header assembly. The filter assembly extends through the opening and is configured to seal the opening and includes a filtering material. The header assembly extends through the opening and inside the filter assembly. The header assembly includes: (i) a first sensor configured to measure a quality of the reductant contained within the filter assembly and (ii) a second sensor configured to measure a level of the reductant contained within the filter assembly.
Claims20
A reductant storage system for an internal combustion engine system, comprising:
- a storage container having a bottom wall, a top wall opposite the bottom wall, an opening extending through the top wall, and a reservoir formed by a hollow interior of the storage container;
- a filter assembly extending through the opening, wherein the filter assembly is configured to seal the opening and includes a filtering material;
- and
- a header assembly extending through the opening and inside the filter assembly, wherein the header assembly includes:
- (i) a first sensor configured to measure a quality of the reductant contained within the filter assembly and (ii) a second sensor configured to measure a level of the reductant contained within the filter assembly.
A reductant storage system for an internal combustion engine system, comprising:
- a storage container having a bottom wall, a top wall opposite the bottom wall, an opening extending through the top wall, and a reservoir formed by a hollow interior of the storage container;
- a filter assembly extending through the opening, wherein the filter assembly is configured to seal the opening and includes a filtering material;
- and
- a header assembly extending through the opening and inside the filter assembly, wherein the header assembly includes an ultrasonic sensor configured to measure a quality of the reductant contained within the filter assembly.
A reductant storage system for an internal combustion engine system, comprising:
- a storage container having a bottom wall, a top wall opposite the bottom wall, an opening extending through the top wall, and a reservoir formed by a hollow interior of the storage container;
- a filter assembly extending through the opening, wherein the filter assembly is configured to seal the opening and includes a filtering material;
- and
- a header assembly extending through the opening and inside the filter assembly, wherein the header assembly includes an ultrasonic sensor configured to measure a level of the reductant contained within the filter assembly.
Dependencies are inferred from the claim text.