Patent ID: 6193485
Filing Date: 2001-02-27
Classification: F04B,F04C,Y10S

Abstract:
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.