Intake gas sensor with vortex for internal combustion engine
AssigneeRobert Bosch GmbH
InventorsDavid Boyd, Craig Magera
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Abstract
A gas sensor includes a sensor housing and a sensing element located within the sensor housing. The sensing element defines an axis. The sensing element has a distal end extending from the sensor housing. The gas sensor further includes a sensor protection element coupled to the sensor housing and at least partially surrounding the distal end of the sensing element. The sensor protection element includes a tube having a conical portion, and a gas inlet located on the tube, the gas inlet spaced from the axis. The gas inlet is shaped to direct gas into the tube to induce a vortex gas flow within the conical portion of the tube.
Claims20
A gas sensor comprising:
- a sensor housing;
- a sensing element located within the sensor housing, the sensing element defining an axis and having a distal end extending from the sensor housing;
- and
- a sensor protection element coupled to the sensor housing and at least partially surrounding the distal end of the sensing element, the sensor protection element including:
- a tube having a conical portion;
- and
- a gas inlet located on the tube, the gas inlet spaced from the axis, the gas inlet shaped to direct gas into the tube to induce a vortex gas flow within the conical portion of the tube.
A gas sensor comprising:
- a sensor housing;
- a sensing element located within the sensor housing, the sensing element defining an axis and having a distal end extending from the sensor housing;
- and
- a sensor protection element coupled to the sensor housing and at least partially surrounding the distal end of the sensing element, the sensor protection element including:
- an outer tube having a conical portion;
- a first gas inlet located on the outer tube, the first gas inlet spaced from the axis;
- a waste outlet located on the conical portion, the axis extending through the waste outlet;
- an inner tube disposed within the outer tube, the sensing element located within the inner tube;
- a second gas inlet located on the inner tube, the axis extending through the second gas inlet;
- a first gas outlet located on the inner tube, the first gas outlet spaced from the axis;
- and
- a second gas outlet located on the outer tube, the second gas outlet spaced from the axis.
Dependencies are inferred from the claim text.