| 摘要 |
<p>The assembly consists of a series of tubes contained in a shell in which they extend radially in a plane perpendicular to their axes in a number of spurs (6, 10 - 18), some of which (6, 10 - 13) are branched (8, 9) and have their inner ends connected to a tube surface (22) which is more or less ring-shaped. The branching tubes have trunks (7) at their bases which diverge and then branch into two sections of equal thickness, with the thickness of the trunk section being between 1.5 times and double the thickness at the base. One tube surface which is trapezoid in shape (27) acts as an air cooler; its upper section is covered by a hood (51) and is located inside the central annular tube surface (22).</p> |
