| 摘要 |
<p>A Stirling engine mounted on a vehicle to efficiently absorb and accumulate the kinetic energy of the vehicle at the time of braking, to improve fuel economy during traveling of the vehicle and to increase the braking effect of an engine brake. The Stirling engine for driving the vehicle is provided with an operating condition-changing device which, at the time of braking the vehicle, changes the operating condition of the Stirling engine over to the heat pump operation. The Stirling engine having, for example, two pistons is provided with the phase difference-changing mechanism 6 for changing a relative phase of the piston 1 and the piston 2. When the brake is applied, the phases of the two pistons are changed to effect the heat pump operation using the power from drive wheels of the vehicle. Heat accumulators 5H and 5C are installed in a heating portion 12 and a cooling portion 22 of the Stirling engine. Braking the vehicle regenerates kinetic energy in heat accumulators as a temperature differential energy which is utilized for the subsequent traveling.</p> |
