| 摘要 |
<p>A passive, progressively-applied contact face seal assembly (163) is used to address blowby between the rotating assembly (104, 108, 114, 124) and housing (110) of a turbocharger (100). The seal assembly (163) is configured to avoid seal contact at low rotational speeds, resulting in less friction at start-up and improved turbocharger (100) transient response. In addition, the seal assembly (163) is configured to provide increasing seal contact with increasing rotational speeds, whereby a full seal is applied under high speed, high pressure conditions when blow-by potential is maximum. The seal assembly (163) is used along with a clearance seal (162).</p> |
