| 摘要 |
<p>A configuration that makes it possible to reduce an exhaust gas pressure loss and a production cost while including a catalyst without making an exhaust gas passage complex. In an engine exhaust gas heat exchanger 1 that includes an engine exhaust gas purification catalyst 2 and carries out heat recovery between engine exhaust gas and engine coolant, the engine exhaust gas purification catalyst 2 is disposed in an exhaust gas flow passage of an exhaust gas introduction part, the catalyst 2 is partially or entirely accommodated in an accommodating member 3, with the circumferential wall thereof being provided with multiple apertures 30 that face an inner wall 41 of a heat exchanger 4, and a space between the inner wall 41 of the heat exchanger 4 and an outer wall 42 of the heat exchanger 4 is configured as an engine coolant passage. The engine exhaust gas exchange machine 1 in which a notch 21b through which gas can be circulated is provided in one place or multiple places in a catalyst support 21 attached to the circumference of the catalyst 2. An energy supplying device that uses the engine exhaust gas heat exchanger 1 in an engine exhaust gas passage.</p> |
