Piston ring

F - Mech Eng,Light,Heat,Weapons – 16 – J

Patent

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Details

F16J 9/16 (2006.01) F16J 9/02 (2006.01)

Patent

CA 2237787

The invention concerns a piston ring (10), in particular a piston ring for a reciprocating compressor, consisting of a first and a second annular element (10a, 10b) with a joint (10e, 10f), the rings (10a, 10b) being disposed concentrically about an axis C. The first ring (10a) has an essentially L- shaped cross-section, with a first arm (10h) extending parallel to axis C and a second arm (10g) extending radially outwards from axis C. The first arm (10h) has an inside surface (10n) and the second arm (10g) has an inside surface (10l), the inside surface (10l) of the second arm (10g) being inclined in the radial direction and the faces (10m, 10k) of the second ring (10b) which face towards the first ring (10a) physically locking with the inside surfaces (10m, 10l) of the first ring (10a).

L'invention concerne un segment de piston (10), notamment pour un compresseur à pistons, constitué d'un premier et d'un second corps (10a, 10b) annulaires avec des points de jonction (10e, 10f). Les segments (10a, 10b) sont disposés de façon concentrique par rapport à l'axe C. Le premier segment (10a) présente une section sensiblement en forme de L, avec une première branche (10h) parallèle à l'axe C et une seconde branche (10g) orientée vers l'extérieur radialement par rapport à l'axe C. La première branche (10h) présente une surface intérieure (10n) et la seconde branche (10g) une surface intérieure (10l), laquelle est inclinée dans le sens radial. De plus, les faces (10m, 10k) du second segment (10b) faisant face au premier segment (10a) sont en contact par liaison de forme avec les surfaces internes (10m, 10l) du premier segment (10a).

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