| 摘要 |
<p>An expansion reservoir 70 has one or more valves 74 with coolant temperature controlled valve 74 activation to receive coolant from, or return it to, a second coolant circuit 2. Also disclosed is the corresponding expansion reservoir 70 in explicit combination with an engine 10 with two cooling circuits 1,2. Also disclosed is a corresponding method of cooling an engine 10, using the normal operation of the expansion reservoir 70. The engine 10 may be a vehicle engine 10. The apparatus and methods may permit the use of a preferred single expansion reservoir 70 for two cooling circuits 1,2 rather than having one per circuit. Separately allowing only one of the coolants to interact with the reservoir 70 at any one time may keep two separate coolants at two separate temperatures apart from each other so as to avoid undesirable heat transfer between the two cooling circuits 1,2.</p> |
