Check valve for crankcase vent of internal-combustion engine, has housing with cross section geodetically tapered under opening to condensate drainage opening, where housing is made of plastic or metal, and includes ventilation opening

摘要

The valve (1) has a housing (2a) enclosing a volume (4), which is connected with a crankcase volume, and another housing (2b), which encloses another volume (5) that is connected with an air intake system of an internal-combustion engine. The volumes (4, 5) are gas-guidably connected through an opening (6) that is closed using a sealing unit (3) based on pressure, where the housing (2a) is made of plastic or metal and includes a ventilation opening (8). A cross section of the housing (2a) is geodetically tapered under the opening (6) to a condensate drainage opening (7).