| 摘要 |
A cooling system for a motor vehicle comprising a cooling circuit (2) for the cooling of a combustion engine (3) and a hydrodynamic retarder (4) by means of a cooling fluid that flows around the cooling circuit. The retarder (4) is designed to use cooling fluid that flows around the cooling circuit as retarding medium. A cooling fluid cooler (6) for cooling of the cooling fluid is connected into the cooling circuit. A thermostat arrangement comprises a first thermostat device (16) arranged to regulate the flow of cooling fluid to the cooling fluid cooler and to a line (14) past this, depending on the temperature of the cooling fluid that is led into this thermostat device through a pilot line (17). A second thermostat device (18) is arranged to regulate the flow of cooling fluid to the cooling fluid cooler (6) and to a line past this, depending on the temperature of cooling fluid that arrives at it from the retarder. The second thermostat device is designed to open for flow to the cooling fluid cooler at a second temperature that is at least 5 K higher than a first temperature at or above which the first thermostat device opens for a corresponding flow. |
