| 摘要 |
<p>PURPOSE:To provide a waste heat recoverying device capable of performing an effective thermal recovery in response to a variation in thermal demand in the same manner as that of an indirect cooling type engine without making a large scaled cooling water pump and in the case that the heat exchangers are arranged in series. CONSTITUTION:A waste heat recoverying heat exchanger 3, a cooling heat exchanger 4 arranged in parallel with the waste heat recoverying heat exchanger, a three-way valve 6 arranged in a flow passage of an inlet port of the cooling heat exchanger 4, a temperature sensing passage 7 for sensing fluid temperature from a circulation flow passage 11 of the heating flow passage to the three-way valve 6 and a bypassing pipe 16 bypassing the three-way valve are provided, thereby the effective waste heat recoverying can be realized in the same manner as that of the series arrangement of the heat exchangers without making any large-sized cooling water pump 2. In addition, with such an arrangement as above, it is also possible to realize the small-sized cooling water pump of the waste heat recoverying device.</p> |
