A system and method for measuring liquid levels in a plurality of recreational vehicle holding tanks uses an electric air pump and a selection unit to measure the air pressure required to selectively pump air to the bottom of the holding tanks. The electric air pump is actuated using a user-operated electrical switch and is shut off by a normally-closed pressure switch when the air pressure at the outlet of the electric air pump exceeds a threshold. The liquid level in each tank can be measured using a pressure gage that reads the air pressure downstream of the electric air pump, which equals the pressure of the liquid at the bottom of each tank.
Multi-tank indirect liquid level measurement system and method for holding tanks in a recreational vehicle
2025-03-25
Patent
Electronic Resource
English
IPC: | G01F Messen des Volumens, des Durchflussvolumens, des Massendurchflusses oder des Füllstandes , MEASURING VOLUME, VOLUME FLOW, MASS FLOW, OR LIQUID LEVEL / B60N SEATS SPECIALLY ADAPTED FOR VEHICLES , Sitze besonders für Fahrzeuge ausgebildet / B60R Fahrzeuge, Fahrzeugausstattung oder Fahrzeugteile, soweit nicht anderweitig vorgesehen , VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISE PROVIDED FOR |
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