Next generation windshield wash system
AssigneeRosemount Aerospace Inc.
InventorsMuralidhar Rao Bojjanapalli, Sandeep Jayaraj
Life of this patent
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Abstract
A windshield wash system includes a pump with an inlet and an outlet, and a fluid reservoir fluidically connected to the inlet of the pump. A fluid delivery line is fluidically connected to the outlet of the pump and at least one nozzle is fluidically connected to the fluid delivery line. An electronic control unit is in controlling communication with the pump. A pressure sensor is in the fluid delivery line and is in communication with the electronic control unit.
Claims17
A windshield wash system comprising:
- a pump comprising an inlet and an outlet;
- a fluid reservoir fluidically connected to the inlet of the pump;
- a fluid delivery line fluidically connected to the outlet of the pump;
- at least one nozzle fluidically connected to the fluid delivery line;
- an electronic control unit in controlling communication with the pump;
- and
- a pressure sensor in the fluid delivery line and in communication with the electronic control unit.
A method for washing a windshield on an aircraft comprises:
- activating, by a pilot control, a pump to flow a fluid from a reservoir, through the pump, into a fluid delivery line, and through at least one nozzle aimed at a windshield of an aircraft;
- sensing a pressure of the fluid flowing in the fluid delivery line by a pressure sensor in the fluid delivery line;
- sending, by the pressure sensor, a pressure signal representative of the pressure of the fluid flowing in the fluid delivery line to an electronic control unit;
- and
- sending, by the electronic control unit in a first mode, a pressure command signal to the pump to adjust a speed of the pump to match the pressure of the fluid flowing in the fluid delivery line to a desired pressure.
A method for washing a windshield on an aircraft comprises:
- activating, by a pilot control, a metering pump to flow a fluid from a reservoir, through the metering pump, into a fluid delivery line, and through at least one nozzle aimed at a windshield of an aircraft;
- sending a flow rate signal from the metering pump to an electronic control unit representative of a flow rate of the fluid flowing into the fluid delivery line;
- and
- sending, by the electronic control unit in a first mode, a flow rate command signal to the metering pump to adjust a speed of the metering pump to match the flow rate of the fluid flowing in the fluid delivery line to a desired flow rate of the fluid.
Dependencies are inferred from the claim text.