A first coolant circuit circulates coolant through engine, an exhaust heat recovery device recovers exhaust heat of an in-vehicle heat source and heats coolant passing therethrough, a second coolant circuit circulates coolant through the exhaust heat recov...

The arrangement (1) has a protection device e.g. valves (7, 17) and thermostats, arranged in an engine-internal bypass (6) for de-throttling an exhaust gas manifold (11). Coolant volume flow is circulated into cooling and heat circuit sections (2, 8). A by...

A vehicle with a Rankine cycle system (100) and a refrigerating cycle system (300) for air-conditioning includes a Rankine condenser (11) forming a part of the Rankine cycle system which converts waste heat of a vehicle into power and an air-conditioning c...

An exhaust-heat recovery system (1) comprises a catalytic converter (30), an exhaust heat exchanger (40), an air conditioner (20) and an engine controller (50). The catalytic converter (30) is such that exhaust discharged from an engine (2) is passed there...

The coolant circuit includes an exhaust heat exchanger (19) whereby coolant can be supplied directly from the radiator (10) to the exhaust heat exchanger. The coolant supply from the radiator and/or engine to the exchanger can be regulated by a valve (14).