Assembly for use in a crankcase ventilation system, a crankcase ventilation system comprising such an assembly, and a method for installing such an assembly

摘要

An assembly for use in a crankcase ventilation system of an internal combustion engine includes a shutter arrangement that is constructed and arranged for preventing that residual gases and/or vapors out of a crankcase flow into an air intake system during a period of time that starts at shut down of the engine and ends after it has been re-started. The assembly also includes an outlet that is constructed and arranged for removing at least a substantial part of the residual gases and/or vapors from the engine as long as it is shut down.

主权项

1. An assembly for use in a crankcase ventilation system of an internal combustion engine with at least one cylinder having a piston and a combustion chamber, the assembly comprising:
a shutter arrangement that is constructed and arranged for preventing residual gases and/or vapors out of a crankcase flow into an air intake system for the cylinder during a period of time that starts at shut down of the engine and ends after it has been re-started, and an outlet that is constructed and arranged for removing at least a part of the residual gases and/or vapors from the engine as long as it is shut down, wherein the shutter arrangement comprises a first shutter element that is positioned in a purge duct of the crankcase ventilation system, wherein the first shutter element is constructed and arranged for preventing residual gases and/or vapors out of a crankcase flow into an air intake system as long as the engine is shut down, and wherein the first shutter element is positioned upstream of a control valve of the crankcase ventilation system.