Compressor valve

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

Patent

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Details

F16K 15/08 (2006.01) F04B 39/10 (2006.01) F04B 53/10 (2006.01)

Patent

CA 2211268

An intake or exhaust valve of a compressor comprises a seating plate (10) and a guard plate (12). The seating plate (10) has a plurality of clusters (66, 68) of holes (16) extending through the seating plate (10), the holes (16) of each cluster (66, 68) being arranged along a respective circular locus and communicating with respective seating surfaces (72, 74) opening through an inner surface (70) of the seating plate (10). The guard plate (12) defines a respective stop surface (89) spaced from the seating surfaces (72, 74). A respective annular seal ring (20) reciprocates between each stop surface (89) and the respective opposed seating surfaces (72, 74). A plurality of springs (22) each engage a respective one of the seal rings (20) to bias the seal ring (20) toward its seating surfaces (72, 74).

L'invention porte sur une soupape d'admission ou d'échappement d'un compresseur, comprenant une embase (10) et une plaque de garde (12). L'embase (10) est pourvue de plusieurs groupes (66, 68) de trous (16) s'étendant à travers celle-ci (10), les trous (16) de chaque groupe (66, 68) se répartissant sur le pourtour d'un cercle et communiquant avec des ouvertures respectives de surfaces d'appui (72, 74) traversant une surface intérieure (70) de l'embase (10). La plaque de garde (12) délimite une surface d'arrêt (89), séparée des surfaces d'appui (72, 74). Un anneau d'étanchéité (20) va et vient entre chaque surface d'arrêt (89) et les surfaces d'appui (72, 74) respectives opposées. Plusieurs ressorts (22) viennent chacun en contact avec un anneau d'étanchéité respectif (20) pour le pousser vers ses surfaces d'appui (72, 74).

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