ARRANGEMENT AND PROCEDURE FOR PRESSURIZING A COOLING SYSTEM TO COOL AN INTERNAL COMBUSTION ENGINE IN A VEHICLE

摘要

An arrangement and procedure for pressurizing a cooling system that cools an internal combustion engine (2) in a vehicle (1). The cooling system includes a coolant pump (3) for circulating the coolant in the cooling system, an expansion tank (12) allowing the coolant in the cooling system to expand, and a pressure relief valve (15) that releases air when a specific pressure is reached in the cooling system. A compressed air-entraining device (17-21) allows compressed air to be supplied to the cooling system by supplying a continuous air flow to the cooling system while the internal combustion engine (2) is operational, and to supplying an air flow of a size at least equal to the estimated leakage from the cooling system.

主权项

1. An arrangement for pressurizing a cooling system that cools an internal combustion engine in a vehicle, wherein the cooling system contains:
a coolant pump configured to circulate the coolant in the cooling system; an expansion tank enabling the coolant in the cooling system to expand when in operation; a pressure relief valve configured to release air from the cooling system when a specific pressure is reached and then exceeded in the cooling system; the arrangement comprises a compressed air-entraining device configured to allow compressed air to be supplied to the cooling system; the compressed air-entraining device is set to provide a continuous air flow to the cooling system during the entire time the internal combustion engine is operational and to supply a constant air flow at a rate of flow size equal to a maximum estimated air leakage from the cooling system.