| 摘要 |
A shell and tube EGR cooler 1 has heat exchanger tubes 2 arranged in a fixed state between tube sheets 3 provided in the interior of a shell, end caps 4 fixed to both end portions of the shell and is provided with recirculated exhaust gas inflow and outflow ports 4-1, 4-2. The heat exchanger tubes are formed so as to extend downward or upward along the circumference of the shell (see figs 2a and 2b). |
