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In a swash plate compressor (1) comprising a shoe (8) disposed between, and being in sliding contact with, a piston (7) and a swash plate (6), at least one of a shoe receiving surface (73e) of the piston (7) and a piston-side sliding surface (8b) of the shoe (8) is provided with an oil path (73f, 73

In a swash plate compressor (1) comprising a shoe (8) disposed between, and being in sliding contact with, a piston (7) and a swash plate (6), at least one of a shoe receiving surface (73e) of the piston (7) and a piston-side sliding surface (8b) of the shoe (8) is provided with an oil path (73f, 73g) for allowing the flow of a lubricating oil therebetween.

대표청구항 ▼

[ What is claimed is:] [1.] A swash-plate compressor comprising a casing, a cylinder block formed in said casing and formed with a plurality of cylinder bores angularly spaced about an axis, a rotary shaft extending on said axis and rotatably supported in said casing, a swash plate attached to said

[ What is claimed is:] [1.] A swash-plate compressor comprising a casing, a cylinder block formed in said casing and formed with a plurality of cylinder bores angularly spaced about an axis, a rotary shaft extending on said axis and rotatably supported in said casing, a swash plate attached to said rotary shaft to be rotatable together with said rotary shaft, a plurality of pistons each having a head portion slidably fitted into a corresponding one of said cylinder bores and a shoe receiving portion connected to said head portion, and a pair of shoes slidably disposed on said shoe receiving portion of said piston and kept in sliding contact with an outer periphery of said swash plate interposed between said pair of shoes so that rotary motion of said rotary shaft is converted into a linear reciprocating motion of each of said pistons through said swash plate and said shoes, said shoe receiving portion having a pair of shoe receiving recesses with spherically concave shoe receiving surfaces for receiving said shoes, respectively each of said shoes having a piston-side sliding surface of a spherical convex to be brought into sliding contact with each of said shoe receiving surfaces, wherein at least one of said shoe receiving surface and said piston-side sliding surface is provided with an oil path for allowing the flow of a lubricating oil between said shoe receiving surface and said piston-side sliding surface;wherein said oil path comprises a pair of lubricating grooves formed in said shoe receiving surface, said lubricating grooves extending from a center point of said shoe receiving surface in opposite directions along an imaginary plane including said center point and said axis of said rotary shaft.