| 摘要 |
<p>Described herein is a gasket (1) for a valve (2) of an internal-combustion engine (3); the valve (2) comprises a guide element (7) defining a through seat, and a stem (8) slidably movable in said seat; the gasket (1) comprises an annular sealing element (12), which is elastically deformable and is designed to be set externally on the valve (2) to co-operate both with the guide element (7) and with the stem (8), and an annular supporting member (13), which is set coaxially on at least part of the sealing element (12) in such a way that the latter is radially pressed between the supporting member (13) and the valve (2); the supporting member (13) comprises a first portion (25) for interaction with the sealing element (12) and a second portion (26) for positioning in use the gasket (1) on the engine (3); the first and second portions of the supporting member (13) form part of a first component (25) and a second component (26), respectively, that are distinct from one another and are moun ted coaxially by snap-action coupling means (27).</p> |
