Sealing structure for scroll type compressor

Rotary expansible chamber devices – Working member has planetary or planetating movement – Helical working member – e.g. – scroll

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Details

418 554, 418142, F04C 1804, F04C 2700

Patent

active

053642473

ABSTRACT:
A scroll type compressor includes a fixed scroll having a fixed spiral element and a fixed end plate, and an orbiting scroll is revolvable without rotating itself in opposition to the fixed scroll. The orbiting scroll includes an orbiting spiral element and an orbiting end plate. A plurality of compression chambers, of which volumes are decreased in response to the revolution of the orbiting scroll, are defined between the scrolls. A discharge port opens to the discharge chambers. The thicknesses of initiating sections of the fixed and orbiting spiral elements are designed larger than those of remaining sections thereof. Sealing members having a spiral shape are slidably interposed between the fixed and orbiting end plates of the fixed and orbiting scrolls, and the initiating sections of the fixed and orbiting spiral elements are in opposition to the respective end plates. The cross sectional area of an initiating section of the sealing member, which is integrally movable with at least the orbiting scroll, is larger than that of remaining section thereof. The sealing member is capable of covering a part of the discharge port.

REFERENCES:
patent: 5217358 (1993-06-01), Mori et al.
Abstract of Japanese Patent Publication No. 62-223488, published Oct. 1, 1987.

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