A process and apparatus for cooling a heat generating component of a vehicle comprises a first pump operated to pump a coolant to at least a first beat absorbing device when the heat generating component is operating. A second pump is operated to pump the coolant to at least the first heat absorbing device when the heat generating component is caused to stop operating.

Reservoir tank including a main body having a coolant injection part storing a coolant, an inlet pipe connected to one side of the main body and communicating with the inside of the main body, and an outlet pipe connected to the other side of the main body and communicating with the inside of the main body, in which a height of an upper end of one side of the main body is lower than a height of an upper end of the other side of the main body, and the inlet pipe is connected to the main body for the coolant to flow from the upper end of one side of the main body towards a lower end, preventing occurrence of bubbles in the coolant by suppressing a wave effect on the surface of the coolant in the reservoir tank by flow of the coolant into the reservoir tank.

A process and apparatus for cooling a heat generating component of a vehicle comprises a first pump operated to pump a coolant to at least a first beat absorbing device when the heat generating component is operating. A second pump is operated to pump the coolant to at least the first heat absorbing device when the heat generating component is caused to stop operating.

An engine system can comprise an engine and a cooling module assembly which comprises a radiator. In some examples, an assembly, such as the cooling module assembly, can include a radiator and a fan shroud and screen assembly arranged at a rear side of the radiator. The fan shroud and screen assembly includes a screen and first and second shroud portions coupled to and around the screen, where the first and second shroud portions and the screen form a cavity, and where the first and second shroud portions are directly coupled to the rear side of the radiator. The assembly further comprises a fan disposed within the cavity and configured to spin freely within the cavity without being attached to the fan shroud and screen assembly.

A multi-way coolant valve includes an outer housing including a first outer inlet, a second outer inlet, a third outer inlet, a fourth outer inlet, a first outer outlet, and a second outer outlet, an inner housing rotatably provided within the outer housing and configured to define a coolant flow path, and a driver connected to a first rotation center of the inner housing and configured to selectively rotate the inner housing within the outer housing, wherein, as the inner housing rotates by a preset interval according to a selected mode of a vehicle, the first outer inlet or the second outer inlet selectively communicates with the first outer outlet, and the third outer inlet or the fourth outer inlet selectively communicates with the second outer outlet.