Internal combustion engine and crankcase ventilation system

A crankcase ventilation system configured to ventilate a crankcase in an internal combustion engine having a turbine, the crankcase ventilation system comprising:

• a crankcase ventilation circuit configured to direct crankcase fluid away from the crankcase;
• a pump disposed in the crankcase ventilation circuit and having a rotor being configured to be driven by the turbine to propel the crankcase fluid through the crankcase ventilation circuit;
• a check valve disposed in the crankcase ventilation circuit downstream of the pump and being configured to prevent a reverse flow direction of the crankcase fluid toward the pump;
• and
• a separator disposed in the crankcase ventilation circuit and configured to remove a lubricant from the crankcase fluid as the crankcase fluid is directed through the crankcase ventilation circuit.

A crankcase ventilation system configured to ventilate a crankcase in an internal combustion engine having a turbine, a compressor propelling intake fluid to the internal combustion engine, and an intake circuit configured to supply the intake fluid to the internal combustion engine, the crankcase ventilation system comprising:

• a crankcase ventilation circuit configured to direct crankcase fluid away from the crankcase;
• a pump disposed in the crankcase ventilation circuit and having a rotor configured to be driven by the turbine to propel the crankcase fluid through the crankcase ventilation circuit, wherein the rotor includes an impeller configured to impart fluid motion to the crankcase fluid;
• and
• a crankcase ventilation circuit outlet being configured to be disposed at the intake circuit downstream from the compressor such that the crankcase fluid is propelled from the crankcase to the intake circuit through the crankcase ventilation circuit.

A crankcase ventilation system configured to ventilate a crankcase in an internal combustion engine having a turbine disposed in an exhaust circuit configured to direct exhaust fluid away from the internal combustion engine, the crankcase ventilation system comprising:

• a crankcase ventilation circuit configured to direct crankcase fluid away from the crankcase;
• a pump disposed in the crankcase ventilation circuit and having a rotor configured to be driven by the turbine to propel the crankcase fluid through the crankcase ventilation circuit, wherein the rotor includes an impeller configured to impart fluid motion to the crankcase fluid;
• and
• a crankcase ventilation circuit outlet configured to be disposed at the exhaust circuit downstream of the turbine such that the crankcase fluid is propelled from the crankcase to the exhaust circuit through the crankcase ventilation circuit.