Patent ID: 6250648
Filing Date: 2001-06-26
Classification: F04B,F16J

Abstract:
A gasket having a surface thereof coated with an elastic membrane and adapted to being interposed, together with a valve plate and a discharge valve, between a cylinder block and a housing of a refrigerant compressor under compression comprising:an outer sealing portion for sealing an outer circumference of the compressor against an atmospheric environment therearound;an inner sealing portion for sealing between a high pressure region and a low pressure region within the compressor, said inner sealing portion being provided with at least one predetermined section thereof trifurcatedly connected to said outer sealing portion; anda deformable ridge portion formed in each of said outer and inner sealing portions including said at least one predetermined section to have the shape of a curved projection with a continuously extending apex, said deformable ridge portion of said predetermined section of said inner sealing portion being connected to said deformable ridge portion of said outer sealing portion to form a trifurcated connection in which an extended and smooth face is provided to contain therein said apexes of said trifurcatedly connected deformable ridge portions of said outer and inner sealing portions.