| 摘要 |
A thermal system (10) for a vehicle (12), particularly a bus. The vehicle has a passenger compartment (14) and an internal-combustion engine (16) cooled by an engine cooling fluid flowing through a closed engine cooling circuit (18). The system includes a refrigerating absorption unit (20) having a generator (22), an evaporator (24), an absorber (26) and a condenser (28). To provide improved efficiency, the system further includes means for supplying the generator (22) of said refrigerating absorption unit (20) with heat energy from the engine cooling fluid; means (42) for adding energy to the engine cooling fluid during its passage from the internal-combustion engine (16) to the refrigerating absorption unit (20), and a first heat exchanger (38) provided downstream of the refrigerating absorption unit (20) for dissipating excess energy in the engine cooling fluid before the engine cooling fluid is returned to the internal-combustion engine (16). |
