US 12,472,905 B2
Filler neck of a water tank of a motor vehicle
Lukas Kuhn, Stuttgart (DE)
Assigned to Dr. Ing. h.c. F. Porsche Aktiengesellschaft, (DE)
Filed by Dr. Ing. h.c. F. Porsche Aktiengesellschaft, Stuttgart (DE)
Filed on Apr. 3, 2024, as Appl. No. 18/625,262.
Claims priority of application No. 102023108535.2 (DE), filed on Apr. 4, 2023.
Prior Publication US 2024/0336213 A1, Oct. 10, 2024
Int. Cl. B60S 1/50 (2006.01); B60K 15/04 (2006.01); B60R 16/08 (2006.01)
CPC B60S 1/50 (2013.01) [B60K 15/04 (2013.01); B60R 16/08 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A filler neck of a water tank of a motor vehicle, said filler neck comprising:
a nozzle element having a cylindrical wall defining a filling opening at a top end of the filler neck, a mechanical thread disposed on an interior surface of the cylindrical wall for receiving a cover of the filler neck, a frustoconical shaped wall extending downwardly from the cylindrical wall and defining both a frustoconical shaped drainage area and a drain opening, a vent opening for venting the water tank, a drain cylinder extending from the drain opening, and an overflow opening configured independently of the filling opening and the vent opening, the overflow opening being positioned through the cylindrical wall at a location below the mechanical thread and above the frustoconical shaped drainage area, the vent opening being disposed through a wall of the drain cylinder at a location below the overflow opening and the frustoconical shaped drainage area,
wherein the drain cylinder is configured to be in operative connection with the water tank,
wherein the filling opening defines a longitudinal axis of the filler neck, and
wherein the vent opening is positioned closer to the longitudinal axis than the overflow opening.