CPC G01S 17/10 (2013.01) [B08B 3/04 (2013.01); B08B 13/00 (2013.01); B60S 1/50 (2013.01); B60S 1/52 (2013.01); G01S 7/4813 (2013.01); G01S 17/931 (2020.01); B60W 60/001 (2020.02); B60W 2420/42 (2013.01); B60W 2420/52 (2013.01); B60W 2420/62 (2013.01)] | 20 Claims |
1. 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 liquid chamber, at least one nozzle, and an air chamber;
the liquid chamber is elongated circumferentially around the axis;
the at least one nozzle is fluidly connected to the liquid chamber and has a direction of discharge aimed at the sensor window;
the air chamber is elongated circumferentially around the axis alongside the liquid chamber;
the air chamber lacks defined flow paths for forcing air into or out of the air chamber;
the ring includes a wall elongated circumferentially; and
the wall partially forms the liquid chamber and partially forms the air chamber.
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