Patent ID: 11947011
Assignee: FORD GLOBAL TECHNOLOGIES, LLC
Field: Measurement (Instruments)
Classification: CPC B  G | IPC B  G

Claim 14:
15. A sensor apparatus comprising:
a cylindrical sensor window defining an axis; and
a ring fixed relative to the sensor window and centered around the axis;
wherein the ring includes a plurality of liquid chambers, a plurality of nozzles, and a plurality of air chambers;
each liquid chamber is elongated circumferentially around the axis;
each nozzle is fluidly connected to one of the liquid chambers and has a direction of discharge aimed at the sensor window;
each air chamber is elongated circumferentially around the axis alongside one of the liquid chambers; and
each air chamber lacks defined flow paths for forcing air into or out of the air chamber;
the nozzles include at least one first nozzle and at least one second nozzle;
the first nozzles each have a direction of discharge in a radially inward and axial direction forming a first angle with the axis; and
the second nozzles each have a direction of discharge in a radially inward and axial direction forming a second angle with the axis, the second angle being different than the first angle.