A unit for storing and releasing thermal energy including a plurality of blocks each having a body the lateral walls of which delimit a chamber suited to receiving storage and release elements of PCM type, to be placed in heat exchange relationship with a refrigerating or heat-transfer fluid circulating between the chambers via passages; and elements for the thermal management of the chambers arranged around said chambers and at least some of which include a thermally insulating material and others a PCM.

Methods and systems are provided for preemptively heating engine oil prior to an engine start using an inductive heating mat. In one example, a method may include coupling a magnetic field between a primary coil housed in the inductive heating mat and a ferrous oil pan to inductively heat engine oil contained in the oil pan. While maintaining engine oil temperature above a threshold temperature, heated engine oil may then be circulated through engine components to warm up the engine prior to engine start.

As a further improvement of the technique of minimizing or preventing excessive cooling of an oil separator, an effective blow-by gas heating apparatus which minimizes or solves the problems due to frozen blow-by gas in an engine externally equipped with an oil separator is provided. The blow-by gas heating apparatus includes: a heat emitting structure abutted onto an oil separator configured to trap and remove oil from blow-by gas. The heat emitting structure has a heat emitting case including inside a passage for engine cooling water. The heat emitting case includes a ceiling wall being in surface-contact from below with a bottom surface of the oil separator.

A cooling device for a motor vehicle may include: a liquid-cooled turbocharger arranged on an internal combustion engine; a coolant feed line; a coolant discharge line; and a heat exchanger arranged at least partially within an oil container. The coolant discharge line is connected by an oil preheating line to the heat exchanger.

A device for preventing dilution of engine oil includes an oil pan in which oil for lubrication of the engine is recovered with fuel. An exhaust purifier is provided on a rear end of the engine and purifying exhaust gas. A gas passage can guide flow of exhaust gas passing through the exhaust purifier to the oil pan. A gas valve can control flow rate of the exhaust gas flowing in the gas passage. A controller controls an opening ratio of the gas valve depending on a temperature of oil inside the oil pan to maintain the temperature of the oil equal to or higher than a temperature at which the fuel in the oil pan is vaporized.

The present invention relates to a heat exchanger apparatus for a combustion engine. The apparatus comprises a heat exchanger comprising at least one magnetic component; and an induction heater positioned adjacent at least one magnetic component of the heat exchanger. The induction heater is connectable to a power supply to provide inductive heating to the heat exchanger.

Methods and systems are provided for an internal combustion engine having an oil circuit. In one example, a system may include a rising oil line from a block to a cylinder head of an engine; a main oil line in the head; and an oil siphon system including a reservoir positioned between, and having at least one portion at a lower elevation than both, a section the rising line and a section of the main oil line so that oil flows into, and remains in, the reservoir when the engine is shut-off. In this way, the design of the oil circuit may be used to improve oil supply to engine components while minimizing delays in oil supply during engine startup.

A control device for an internal combustion engine is provided which enables control of dilution of oil by fuel and water drops, i.e., control of the amount of so-called oil dilution. The control device for an internal combustion engine that is lubricated or cooled by oil includes: a variable displacement oil pump capable of varying the amount of discharge of the oil; an air-fuel ratio sensor for sensing an air-fuel ratio of the internal combustion engine; and an ECU for controlling the amount of discharge of the variable displacement oil pump. The ECU controls the amount of discharge of the variable displacement oil pump, based on the air-fuel ratio sensed by the air-fuel ratio sensor.

A method of modifying the oil cooling system of a diesel engine includes the steps of removing the original equipment liquid-to-liquid heat exchanger and installing a manifold having a configuration adapted to match the mounting configuration of the oil passages of the original equipment liquid-to-liquid heat exchanger. The manifold has an oil outlet port directed to a remotely mounted oil cooler. The manifold also has a water passage having a configuration that is adapted to match the mounting configuration of the water passages of the original equipment liquid-to-liquid heat exchanger. The water passage causes the entirety of the flow of water to be discharged back to the water cooling system of the engine where it is circulated by the water pump through the water cooling passages in the engine.

The present invention relates to a vehicle oil warmer and a heat exchange system. More particularly, the present invention relates to a vehicle oil warmer and a heat exchange system, which enable a heat exchange between a coolant and oil to be automatically controlled according to the temperature of the coolant discharged from an engine, without a separate bypass valve for controlling the flow rate of the coolant, to thereby secure a heating performance of the vehicle interior while simultaneously heating the oil at the time of an initial start of the engine, and when the vehicle is running, lower the temperature of the oil by using an oil cooler in which low-temperature coolant flows, so that the temperature of the oil can be adjusted appropriately.