There is provided an engine equipped with a supercharger that suppresses heat deterioration of engine oil. The engine equipped with a supercharger includes a supercharger; an oil supply passage that supplies engine oil to a shaft bearing part of the supercharger; an oil discharge passage that discharges the engine oil from the shaft bearing part of the supercharger; and a water-cooling-type oil cooler. The water-cooling-type oil cooler is provided in the oil discharge passage, and the engine oil discharged from the shaft bearing part of the supercharger is cooled by the engine cooling water that passes the water-cooling-type oil cooler. The engine cooling water is desirably supplied from the cylinder jacket to the water-cooling-type oil cooler.

The invention provides a single radiator cooling system for use in hybrid electric vehicles, the system comprising a surface in thermal communication with electronics, and subcooled boiling fluid contacting the surface. The invention also provides a single radiator method for simultaneously cooling electronics and an internal combustion engine in a hybrid electric vehicle, the method comprising separating a coolant fluid into a first portion and a second portion; directing the first portion to the electronics and the second portion to the internal combustion engine for a time sufficient to maintain the temperature of the electronics at or below 175° C.; combining the first and second portion to reestablish the coolant fluid; and treating the reestablished coolant fluid to the single radiator for a time sufficient to decrease the temperature of the reestablished coolant fluid to the temperature it had before separation.

A cooling device for a vehicle is provided, which includes a first coolant channel through which a first coolant for cooling an engine flows, a second coolant channel through which a second coolant for cooling a motor drive flows, and an oil channel through which oil for lubricating inside a transmission flows. The oil channel includes a first heat exchanger configured to exchange heat between the first coolant and the oil, a second heat exchanger configured to exchange heat between the second coolant and the oil, and a valve configured to adjust a first flow rate of the oil circulating through the first heat exchanger and a second flow rate of the oil circulating through the second heat exchanger.

The present disclosure discloses a combined cooling system for a motor and a motor controller, which comprises a water cooling assembly, an oil cooling assembly, and an oil-water heat exchanger; one end of the water cooling assembly is connected to an cooling water outlet of the motor, the other end is connected to an cooling water inlet of the motor controller and/or a water inlet of the oil-water heat exchanger; one end of the oil cooling assembly is connected to a cooling oil outlet of the motor, the other end of the oil cooling assembly is connected to an oil inlet of the oil-water heat exchanger, and an oil outlet of the oil-water heat exchanger is connected to a cooling oil inlet of the motor. The above technical solution utilizes the temperature characteristics of the motor and the motor controller, and achieves the objects of saving energy in cooling, and improving high power output performance and environmental adaptability of the motor through the cooperation and intelligent control of the water pump, oil pump and fan in the combined cooling system.

The invention relates to an oil-water heat exchanger, in particular for connection to an internal combustion engine of a motor vehicle, comprising at least one electric heating coating (13) which is applied to an outer side and/or in the interior of the heat exchanger.

A cooling device for a vehicle is provided, which includes a first coolant channel through which a first coolant for cooling an engine flows, a second coolant channel through which a second coolant for cooling a motor drive flows, and an oil channel through which oil for lubricating inside a transmission flows. The oil channel includes a first heat exchanger configured to exchange heat between the first coolant and the oil, a second heat exchanger configured to exchange heat between the second coolant and the oil, and a valve configured to adjust a first flow rate of the oil circulating through the first heat exchanger and a second flow rate of the oil circulating through the second heat exchanger.

There is provided a vertical multicylinder straight engine in which the temperature distribution of a plurality of cylinder barrels is made close to an even state. A cylinder jacket includes: a jacket inlet; a separated channel; a plurality of separated outlets; and heat dissipater channels for dissipating heat of the respective cylinder barrels to engine cooling water introduced through the separated outlets. The plurality of separated outlets include: a front-side separated outlet to a front-end barrel; a rear-side separated outlet to a rear-end barrel; and middle separated outlets to middle barrels between the front-end barrel and the rear-end barrel, and the jacket inlet is disposed so as to be contained within an entire middle barrel side area that is lateral to the middle barrels and has a front-rear length as long as a length from a front-most end to a rear-most end of the middle barrels.

The present disclosure discloses a combined cooling system for a motor and a motor controller, which comprises a water cooling assembly, an oil cooling assembly, and an oil-water heat exchanger; one end of the water cooling assembly is connected to an cooling water outlet of the motor, the other end is connected to an cooling water inlet of the motor controller and/or a water inlet of the oil-water heat exchanger; one end of the oil cooling assembly is connected to a cooling oil outlet of the motor, the other end of the oil cooling assembly is connected to an oil inlet of the oil-water heat exchanger, and an oil outlet of the oil-water heat exchanger is connected to a cooling oil inlet of the motor. The above technical solution utilizes the temperature characteristics of the motor and the motor controller, and achieves the objects of saving energy in cooling, and improving high power output performance and environmental adaptability of the motor through the cooperation and intelligent control of the water pump, oil pump and fan in the combined cooling system.

There is provided an engine equipped with a supercharger that suppresses heat deterioration of engine oil. The engine equipped with a supercharger includes a supercharger; an oil supply passage that supplies engine oil to a shaft bearing part of the supercharger; an oil discharge passage that discharges the engine oil from the shaft bearing part of the supercharger; and a water-cooling-type oil cooler. The water-cooling-type oil cooler is provided in the oil discharge passage, and the engine oil discharged from the shaft bearing part of the supercharger is cooled by the engine cooling water that passes the water-cooling-type oil cooler. The engine cooling water is desirably supplied from the cylinder jacket to the water-cooling-type oil cooler.

The invention provides a single radiator cooling system for use in hybrid electric vehicles, the system comprising a surface in thermal communication with electronics, and subcooled boiling fluid contacting the surface. The invention also provides a single radiator method for simultaneously cooling electronics and an internal combustion engine in a hybrid electric vehicle, the method comprising separating a coolant fluid into a first portion and a second portion; directing the first portion to the electronics and the second portion to the internal combustion engine for a time sufficient to maintain the temperature of the electronics at or below 175 C.; combining the first and second portion to reestablish the coolant fluid; and treating the reestablished coolant fluid to the single radiator for a time sufficient to decrease the temperature of the reestablished coolant fluid to the temperature it had before separation.