Cooling system and vehicle comprising such a cooling system

A vehicle comprising a cooling system comprising:

• a cooling circuit;
• a coolant pump for circulating coolant in the cooling circuit;
• an expansion tank for accumulation of coolant;
• and
• a deaeration device arranged in the cooling circuit for separation of air bubbles from the coolant circulating in the cooling circuit, wherein the deaeration device is connected to the expansion tank via a static line and comprises a deaeration chamber comprising:
• a coolant inlet connected to a feed pipe of the cooling circuit to allow coolant circulating in the cooling circuit to flow from the feed pipe into the deaeration chamber via the coolant inlet;
• a first coolant outlet connected to the coolant pump to allow coolant to flow from the deaeration chamber to the coolant pump via the first coolant outlet, wherein the coolant inlet and the first coolant outlet are spaced apart from each other in a longitudinal direction of the deaeration chamber;
• and
• a second coolant outlet connected to the expansion tank via the static line and located at a higher position than the first coolant outlet relative to a local gravity vector when the cooling system is mounted to a vehicle and the vehicle is positioned in an upright use position on a horizontal surface,
• wherein a cross-sectional dimension of the deaeration chamber is larger than a
• cross-sectional dimension of the feed pipe to thereby allow air bubbles carried along with coolant flowing through the feed pipe to enter the deaeration chamber via the coolant inlet and thereafter migrate in the deaeration chamber to the second coolant outlet,
• wherein the second coolant outlet is located in such a position in relation to the coolant inlet and the first coolant outlet that a coolant flow in the deaeration chamber between the coolant inlet and the first coolant outlet will move said migrating air bubbles in the longitudinal direction of the deaeration chamber towards the second coolant outlet, wherein the first coolant outlet is arranged at a higher position than the coolant inlet relative to the local gravity vector when the cooling system is mounted to a vehicle and the vehicle is positioned in the upright use position on the horizontal surface, and
• wherein the deaeration chamber has an elongated shape and is arranged with its longitudinal axis inclined in relation to a horizontal plane by an angle (a) that is in a range of one of:
• 0-90°;
• 10°-90°;
• or 15°-90°, when the cooling system is mounted to a vehicle and the vehicle is positioned in the upright use position.