Coolant filler neck assembly having integrated coolant overflow resevoir

Abstract

A coolant filler neck assembly for a pressurized cooling system. The coolant filler neck includes 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 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 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 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.

1 - 20 . (canceled) 
     
     
         21 . A coolant filler neck assembly, comprising:
 a cylinder housing defining a non-pressurized coolant overflow reservoir;   a pressurized fluid conduit for fluidic communication with a pressurized cooling system;   a first cap member to close an exposed upper region of the cylinder housing, the first cap member having a first non-pressurized fluid conduit for fluidic communication with the pressurized fluid conduit;   a second non-pressurized fluid conduit for fluidic communication with the first non-pressurized fluid conduit to direct overflow liquid coolant to the non-pressurized coolant overflow reservoir;   a third non-pressurized fluid conduit for fluidic communication with the non-pressurized coolant overflow reservoir to direct the overflow liquid coolant to the ambient environment; and   a second cap member, to close an exposed lower region of the cylinder housing, the second cap member having a fourth non-pressurized fluid conduit for fluidic communication with the third non-pressurized fluid conduit to direct the overflow liquid coolant from the third non-pressurized fluid conduit to the ambient environment.   
     
     
         22 . The coolant filler neck assembly of  claim 21 , wherein the second non-pressurized fluid conduit extends in a longitudinal direction though a first region of the non-pressurized coolant overflow reservoir. 
     
     
         23 . The coolant filler neck assembly of  claim 21 , wherein the second non-pressurized fluid conduit comprises a first longitudinal end for fluidic communication with the first non-pressurized fluid conduit. 
     
     
         24 . The coolant filler neck assembly of  claim 23 , wherein the second non-pressurized fluid conduit further comprises a second longitudinal end for fluidic communication with the non-pressurized coolant overflow reservoir. 
     
     
         25 . The coolant filler neck assembly of  claim 24 , wherein in a longitudinal direction of the second non-pressurized fluid conduit, the second longitudinal end is opposite the first longitudinal end. 
     
     
         26 . The coolant filler neck assembly of  claim 21 , wherein the first cap member is configured for receipt at an upper region of the cylinder housing. 
     
     
         27 . The coolant filler neck assembly of  claim 21 , wherein the second cap member is configured for receipt at a lower region of the cylinder housing. 
     
     
         28 . A coolant filler neck assembly, comprising:
 a non-pressurized coolant overflow reservoir; and   a plurality of fluid conduits including a pressurized fluid conduit for fluidic communication with a pressurized cooling system, a first non-pressurized fluid conduit for fluidic communication with the pressurized fluid conduit, a second non-pressurized fluid conduit for fluidic communication with the first non-pressurized fluid conduit to direct overflow liquid coolant to the non-pressurized coolant overflow reservoir, a third non-pressurized fluid conduit for fluidic communication with the non-pressurized coolant overflow reservoir to direct the overflow liquid coolant to the ambient environment, and a fourth non-pressurized fluid conduit for fluidic communication with the third non-pressurized fluid conduit to direct the overflow liquid coolant from the third non-pressurized fluid conduit to the ambient environment.   
     
     
         29 . The coolant filler neck assembly of  claim 28 , wherein the second non-pressurized fluid conduit extends in a longitudinal direction though a first region of the non-pressurized coolant overflow reservoir. 
     
     
         30 . The coolant filler neck assembly of  claim 28 , wherein the second non-pressurized fluid conduit comprises a first longitudinal end for fluidic communication with the first non-pressurized fluid conduit. 
     
     
         31 . The coolant filler neck assembly of  claim 30 , wherein the second non-pressurized fluid conduit further comprises a second longitudinal end for fluidic communication with the non-pressurized coolant overflow reservoir. 
     
     
         32 . The coolant filler neck assembly of  claim 31 , wherein in a longitudinal direction of the second non-pressurized fluid conduit, the second longitudinal end is opposite the first longitudinal end. 
     
     
         33 . The coolant filler neck assembly of  claim 28 , wherein the first non-pressurized fluid conduit is arranged at an upper region of the non-pressurized coolant overflow reservoir. 
     
     
         34 . The coolant filler neck assembly of  claim 28 , wherein the fourth non-pressurized fluid conduit is arranged at a lower region of the non-pressurized coolant overflow reservoir. 
     
     
         35 . A vehicle, comprising:
 a pressurized cooling system;   a cylinder housing defining a non-pressurized coolant overflow reservoir;   a pressurized fluid conduit for fluidic communication with a pressurized cooling system;   a first cap member to close an exposed upper region of the cylinder housing, the first cap member having a first non-pressurized fluid conduit for fluidic communication with the pressurized fluid conduit;   a second non-pressurized fluid conduit for fluidic communication with the first non-pressurized fluid conduit to direct overflow liquid coolant to the non-pressurized coolant overflow reservoir;   a third non-pressurized fluid conduit for fluidic communication with the non-pressurized coolant overflow reservoir to direct the overflow liquid coolant to the ambient environment; and   a second cap member, to close an exposed lower region of the cylinder housing, the second cap member having a fourth non-pressurized fluid conduit for fluidic communication with the third non-pressurized fluid conduit to direct the overflow liquid coolant from the third non-pressurized fluid conduit to the ambient environment.   
     
     
         36 . The coolant filler neck assembly of  claim 35 , wherein the second non-pressurized fluid conduit comprises a first longitudinal end for fluidic communication with the first non-pressurized fluid conduit. 
     
     
         37 . The coolant filler neck assembly of  claim 36 , wherein the second non-pressurized fluid conduit further comprises a second longitudinal end for fluidic communication with the non-pressurized coolant overflow reservoir. 
     
     
         38 . The coolant filler neck assembly of  claim 37 , wherein in a longitudinal direction of the second non-pressurized fluid conduit, the second longitudinal end is opposite the first longitudinal end. 
     
     
         39 . The coolant filler neck assembly of  claim 35 , wherein the first cap member is configured for receipt at an upper region of the cylinder housing. 
     
     
         40 . The coolant filler neck assembly of  claim 35 , wherein the second cap member is configured for receipt at a lower region of the cylinder housing.