| 摘要 |
<p>The device has a radially outer annular element i.e. ring metal sheet (7) including an opening (7b) for discharging of contaminations to corresponding annular duct (2b) that is formed in a housing (2). The annular element comprises another opening (7a) for discharging purified gas to corresponding another annular duct (2a). A radially inwardly projecting, conical intermediate ring i.e. partition plate (8), is provided between guidance rings (5, 6) on the annular element. The intermediate ring radial internally interconnects annular chambers (9, 10) formed on two sides of the intermediate ring.</p> |
