US 12,434,669 B2
Vehicle camera lens cleaning system with swirl flow generator
Kothamasi Sumithra Raju, Bengaluru (IN); Yuchuan Liu, Troy, MI (US); Julien P. Mourou, Bloomfield Hills, MI (US); and Zhe Li, Rochester, MI (US)
Assigned to GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed by GM GLOBAL TECHNOLOGY OPERATIONS LLC, Detroit, MI (US)
Filed on Nov. 3, 2023, as Appl. No. 18/501,133.
Prior Publication US 2025/0145118 A1, May 8, 2025
Int. Cl. B60S 1/56 (2006.01); B08B 5/02 (2006.01); B08B 7/02 (2006.01); B60S 1/54 (2006.01)
CPC B60S 1/56 (2013.01) [B60S 1/54 (2013.01); B08B 5/02 (2013.01); B08B 7/028 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A vehicle camera lens cleaning system, comprising:
a camera configured to be mounted to a vehicle, the camera including a lens;
a source of pressurized air;
an air flow passage connected to the source of pressurize air;
an annular duct connected to the air flow passage and surrounding the lens, the annular duct having a non-uniform cross section taken in a radial direction from a center axis perpendicular to a plane of the lens; and
a plurality of nozzles each extending from the annular duct in a direction parallel to the center axis of the lens and curving radially inward with an outlet opening pointed at the lens and at the center axis.