Tipseal for a scroll compressor

F - Mech Eng,Light,Heat,Weapons – 04 – C

Patent

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F04C 27/00 (2006.01)

Patent

CA 2641765

A scroll compressor including a non-orbiting and an orbiting scroll member having mating involute wraps extending therefrom. In one exemplary embodiment, at least one of the non-orbiting and orbiting scroll members includes an inner wall forming a groove in an end of the involute wrap and extending substantially entirely along the length thereof. Positioned within the groove is a tip seal having outwardly extending projections configured to engage the inner walls of the involute wrap along at least a portion thereof. In one exemplary embodiment, the tip seal has a length that is less than the length of the groove. As a result, a gap is formed at the innermost portion of the involute wrap between the end of the groove and the end of the tip seal.

Compresseur à volute comprenant une volute non orbitale et une volute orbitale, munies de développantes appariées se prolongeant desdites volutes. Dans un exemple de réalisation, au moins une des volutes, non orbitales et orbitales comprend une paroi intérieure formant une gorge à une extrémité de la développante et se prolongeant essentiellement le long de toute sa longueur. Un joint d'extrémité placé dans la gorge et est muni de protubérances se prolongeant vers l'extérieur et configurées de façon à engager les parois intérieures e la développante le long d'au moins une partie de ladite développante. Dans un exemple de réalisation de l'invention, le joint d'extrémité a une longueur inférieure à celle de la gorge. Par conséquent, un écart est formé au niveau de la partie la plus intérieure de la développante, entre le bout de la gorge et le bout du joint d'extrémité.

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