초록 ▼

An apparatus for testing watertightness of a railcar comprises a blower fan apparatus with an exhaust duct and an exhaust outlet that can be sealed against an aperture in the railcar. The fan blower of the apparatus is capable of providing an airflow to the railcar to provide a pressure differential

An apparatus for testing watertightness of a railcar comprises a blower fan apparatus with an exhaust duct and an exhaust outlet that can be sealed against an aperture in the railcar. The fan blower of the apparatus is capable of providing an airflow to the railcar to provide a pressure differential of between about 0.5 to about 2.5 inches of H.sub.2 O between an interior of the railcar and an exterior of the railcar. The blower is operated to provide air to the railcar to provide a pressure differential, causing bubbles to form in a liquid solution applied to the exterior surface of the railcar. The railcar is marked for subsequent repair at locations where bubbles are detected.

대표청구항 ▼

[ What is claimed is:] [1.] A passenger railcar in combination with apparatus for testing watertightness of said passenger railcar, said apparatus comprising:a fan blower having an electric motor and a blower, with an exhaust duct and an exhaust outlet;means for locating said exhaust outlet adjacent

[ What is claimed is:] [1.] A passenger railcar in combination with apparatus for testing watertightness of said passenger railcar, said apparatus comprising:a fan blower having an electric motor and a blower, with an exhaust duct and an exhaust outlet;means for locating said exhaust outlet adjacent an aperture in said passenger railcar;means for sealing said exhaust outlet adjacent said aperture in said passenger railcar;said fan blower being capable of providing an airflow to said passenger railcar to provide a pressure differential of between about 0.5 to about 2.5 inches of H.sub.2 O between an interior of said passenger railcar and an exterior of said passenger railcar;whereby a liquid solution having the ability to form bubbles may be applied to an exterior surface of said railcar and forms detectable bubbles by escape of air from said railcar at leakage points in said passenger railcar.