A vapor separation system including a cooler having an inlet configured to receive an air-oil-water mixture, and an outlet configured to discharge separated oil and water in two different phases of matter. A first sensor is at the outlet of the cooler. A controller is communicatively coupled to the cooler, wherein the controller is configured to receive temperature feedback from the first sensor, and increase or reduce the amount of cooling, with the cooler and based on the temperature feedback, the oil-water mixture to a separation temperature configured to liquefy at least a portion of the oil in the air-oil-water mixture, while maintaining at least a portion of the water in the air-oil-water mixture in a vaporized state.

An improved blow-by gas return structure minimizes the occurrence of a drawback caused by freezing at a low temperature by bringing a state where freezing minimally occurs in a blow-bay gas passage such as a pipe disposed outside an engine. The blow-by gas return structure is configured such that a blow-by gas is introduced into an intake manifold through an inner passage formed in a head cover. The blow-by gas return structure includes an outer pipe which connects a blow-by gas outlet of the head cover and a blow-by gas inlet of a main pipe of the intake manifold in a communicable manner, and a temperature elevating mechanism configured to elevate a temperature of the blow-by gas inlet. The temperature elevating mechanism is configured such that a cooling water transfer passage is formed in a portion of the blow-by gas inlet of the main pipe.

A vapor separation system including a cooler having an inlet configured to receive an air-oil-water mixture, and an outlet configured to discharge separated oil and water in two different phases of matter. A first sensor is at the outlet of the cooler. A controller is communicatively coupled to the cooler, wherein the controller is configured to receive temperature feedback from the first sensor, and increase or reduce the amount of cooling, with the cooler and based on the temperature feedback, the oil-water mixture to a separation temperature configured to liquefy at least a portion of the oil in the air-oil-water mixture, while maintaining at least a portion of the water in the air-oil-water mixture in a vaporized state.

An intake module an internal combustion engine of a motor vehicle includes at least one air duct element via which air is to be supplied to the internal combustion engine, and a cylinder head cover connected to the air duct element by means of which a cylinder head of the internal combustion engine is to be at least partially covered. A lubricant separation device and a cooling device for cooling the air are integrated into the intake module.

A vehicle includes a diesel engine having a crankcase and a crankcase ventilation system connected to the crankcase and configured to ventilate crankcase exhaust gases. The vehicle also includes a diesel exhaust fluid (DEF) reservoir including DEF therein, the DEF configured to reduce emissions of the diesel engine, and a DEF cooling system operably connected to the crankcase and the DEF reservoir. The DEF cooling system is configured to receive the DEF and use the DEF to cool the crankcase exhaust gases passing therethrough.

A vehicle includes a diesel engine having a crankcase and a crankcase ventilation system connected to the crankcase and configured to ventilate crankcase exhaust gases. The vehicle also includes a diesel exhaust fluid (DEF) reservoir including DEF therein, the DEF configured to reduce emissions of the diesel engine, and a DEF cooling system operably connected to the crankcase and the DEF reservoir. The DEF cooling system is configured to receive the DEF and use the DEF to cool the crankcase exhaust gases passing therethrough.