| 摘要 |
The invention relates to an exhaust gas heat exchanger (1), in particular for use in a motor vehicle, comprising at least one first flow channel (2) that conducts a first fluid, which first flow channel is accommodated in respective tube sheets (3) at the end areas of the first flow channel, comprising a housing (4), which surrounds the first flow channel (2), the housing (4) having an inlet opening and an outlet opening and forming a second flow channel (10) for a second fluid, a second fluid being able to flow through the housing and the second fluid being able to flow around the first flow channel (2), the pipe sheets (3) being inserted into the housing (4) in such a way that the first flow channel (2) is sealed off from the second flow channel (10), and comprising a first diffusor (5) that conducts the first fluid into the first flow channel (2) and a second diffusor (5) that conducts the first fluid out of the first flow channel (2), the exhaust gas heat exchanger being characterized in that the exhaust gas heat exchanger (1) has at least one first shielding element (6), which has at least one first passage (7) and at least one first spacing element (8), which is placed onto a tube sheet (3) from the side facing away from the first flow channel (2). |
