SEAL STRUCTURE OF HOUSING AND FLUID MACHINE INCLUDING THE SAME
PROBLEM TO BE SOLVED: To provide a seal structure of a housing capable of improving corrosion prevention performance of a housing in a seal structure between housings using an O ring.SOLUTION: A seal structure of a housing is configured to seal with an O ring 62 between a connection surface 57 of a...
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Format: | Patent |
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Zusammenfassung: | PROBLEM TO BE SOLVED: To provide a seal structure of a housing capable of improving corrosion prevention performance of a housing in a seal structure between housings using an O ring.SOLUTION: A seal structure of a housing is configured to seal with an O ring 62 between a connection surface 57 of a stationary scroll 24 and a connection surface 59 of a front housing 4, which are connected to each other through a shim 15. The shim 15 comprises a metal base material, and a metal coating formed on a surface of the base material and softer than the base material; is positioned outside the O ring 62; and is provided over the whole circumference. The metal coating of the shim 15 has a film thickness of compensating surface roughnesses of the stationary scroll 24 and the front housing 4 in the connection surfaces 57, 59.SELECTED DRAWING: Figure 3
【課題】Oリングを用いた筐体間のシール構造における筐体の腐食回避性能を向上させた筐体のシール構造を提供する。【解決手段】筐体のシール構造は、シム15を介して相互に接合される固定スクロール24の接合面57とフロントハウジング4の接合面59間を、Oリング62によりシールする。シム15は、金属製の母材と、この母材の表面に形成され、当該母材よりも軟質の金属被膜とから成り、Oリング62より外側に位置し、全周に渡って設けられている。シム15の金属被膜は、接合面57、59における固定スクロール24、フロントハウジング4の面粗度を埋めうる膜厚を有する。【選択図】図3 |
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