US 12,000,323 B2
Coolant filler neck assembly having integrated coolant overflow reservoir
Daniel Strain, Muskego, WI (US); Matt Pavlat, Greenfield, WI (US); Michael Carlin, Sussex, WI (US); Johann Voges, Wauwatosa, WI (US); and Raul Tocci, Pleasant Prairie, WI (US)
Assigned to Harley-Davidson Motor Company, Inc., Milwaukee, WI (US)
Filed by Harley-Davidson Motor Company Group, LLC, Milwaukee, WI (US)
Filed on Oct. 7, 2022, as Appl. No. 17/938,698.
Prior Publication US 2024/0117762 A1, Apr. 11, 2024
Int. Cl. F01P 11/02 (2006.01); F01P 11/04 (2006.01)
CPC F01P 11/0276 (2013.01) [F01P 11/0209 (2013.01); F01P 11/029 (2013.01); F01P 11/04 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A coolant filler neck assembly for a pressurized cooling system, the coolant filler neck assembly comprising:
a cylinder housing defining a non-pressurized coolant overflow reservoir;
an upper cap member attached to an upper region of the cylinder housing, the upper cap member including an overflow inlet port member arranged internally in the non-pressurized coolant overflow reservoir and a filler pipe member in fluidic communication with the overflow inlet port member and the pressurized cooling system;
a first fluid overflow tube member arranged internally in the non-pressurized coolant overflow reservoir to extend in a longitudinal direction though a first region of the non-pressurized coolant overflow reservoir to direct overflow liquid coolant to the non-pressurized coolant overflow reservoir; and
a second fluid overflow tube member arranged internally in the non-pressurized coolant overflow reservoir to extend in a longitudinal direction though a second region of the non-pressurized coolant overflow reservoir to direct the overflow liquid coolant from the non-pressurized coolant overflow reservoir to the ambient environment.