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US 2017/0320576 A1Published application
Grey water interface valve liquid level sensor system
AssigneeMAG Aerospace Industries, LLC
InventorsJakob Hennings, Rohan Lean, Joachim Hilse, Razmik B. Boodaghians, Jeroen Willem Kurvink
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Abstract
Embodiments of the present disclosure generally provide a grey water interface valve liquid level sensor system. The liquid level sensor system may deliver information about the water level and the water movement that occurs in a water reservoir. A control unit may then activate a valve to open so that the water can be removed via vacuum.
Claims20
A water level sensing system, comprising:
- at least one differential sensor and at least one absolute sensor;
- wherein the water level sensing system is positioned on an outer surface of a liquid reservoir such that the system does not contact liquid in the reservoir, and
- wherein the sensors function at an excitation frequency of greater than about 4 MHz.
A grey water interface valve sensor system for use on a passenger vehicle, comprising:
- a wash basin, a reservoir, a control unit, a valve, a vehicle vacuum system, and a level sensing unit, the level sensing unit comprising at least one differential sensor and at least one absolute sensor positioned on an outer upper portion of the reservoir;
- and at least one differential sensor and at least one absolute sensor positioned on an outer lower portion of the reservoir, wherein the level sensing system directs the control unit to activate the valve in order to allow the vacuum system to drain the reservoir.
(canceled)
Dependencies are inferred from the claim text.