Seal structure for casing
AssigneeDaikin Industries, Ltd.
InventorsShusaku Ueda, Takeshi Inoue, Kenichi Hashimoto, Kazutaka Hori
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Abstract
An upper casing is outer-fitted to a lower casing. A concave portion for receiving a peripheral portion of a housing is provided at an inner wall of the upper casing. A convex portion for suppressing deformation of the housing caused by deformation when the upper casing is shrinkage-fitted or pressed-fitted is selectively formed at the bottom of the concave portion. A gap is provided between the lower casing and the housing for alleviating the degree of press on the housing by the casing when the upper casing and the lower casing are welded.
Claims11
A casing having a sealing structure comprising a first casing, a second casing having a step portion and outer-fitted to an outer circumferential face of said first casing, and a housing member held by said first casing and having an outer circumferential face fitted within the step portion of said second casing, wherein at least one convex portion is formed in one of the step portion of said second casing and the outer circumferential face of said housing member, and said second casing is shrinkage-fitted or pressed-fitted to said housing member, said convex portion being deformed by said shrinkage-fitting or press-fitting to provide sealing between said inner circumferential face of said second casing and said outer circumferential face of said housing member.
Dependencies are inferred from the claim text.