| 摘要 |
<p>A cooling system for a vehicle equipped with retarder incorporates an engine cooling circuit, a retarder cooling circuit and a radiator (11) which is common to both circuits. The retarder cooling circuit (24), which is arranged in a circuit parallel with the radiator (11), incorporates a retarder cooler (23) and an extra cooling medium pump (25). This cooling medium pump (25) is operated separately and is arranged to operate during the time when the retarder (2) is activated. The fact that the retarder cooling circuit (24) is connected substantially directly to the radiator (11) eliminates the problems which are due to the presence in the engine cooling circuit of a thermostat and to the presence in the engine cooling circuit of a cooling medium pump (16) which depends on the engine speed.</p> |
