Clogged nozzle detection
AssigneeCaterpillar Paving Products Inc.
InventorBrian J. Schlenker
Life of this patent
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Abstract
A work machine can include a frame; a spray system couple to the frame and including a spray bar having a plurality of nozzles; a pressure sensor to detect a pressure of a liquid within the spray bar; and a controller to determine whether the detected pressure of the liquid within the spray bar has exceeded a pre-determined pressure threshold.
Claims19
A work machine comprising:
- a frame;
- a spray system couple to the frame and including a spray bar having a plurality of nozzles;
- a pressure sensor to detect a pressure of a liquid within the spray bar;
- and
- a controller to determine whether the detected pressure of the liquid within the spray bar has exceeded a pre-determined pressure threshold.
The work machine of claim 5, wherein if the detected pressure goes a pre-determined amount above the predicted pressure then the controller determines one or more nozzles are clogged.
A milling machine comprising:
- a frame;
- a milling assembly on the frame including a drum housing;
- a cutting rotor located within the drum housing;
- a spray system including a spray bar having a plurality of nozzles to deliver a liquid within the drum housing;
- a pressure sensor to detect a pressure of a liquid within the spray bar;
- and
- a controller to determine whether the pressure of the liquid within the spray bar has been exceeded pre-determined pressure threshold to determine whether any of the plurality of nozzles have been clogged.
A method of detecting a clogged nozzle in a spray bar having a plurality of nozzles, the method comprising:
- determining a pressure of a liquid within the spray bar;
- and
- if the pressure of the liquid reaches a pre-determined threshold, determining that one or more of the nozzles of the spray bar are clogged.
Dependencies are inferred from the claim text.