Compressor swash plate and compressor equipped with same

Patent metadata

Field	Value
Publication number	US-10184463-B2
Application number	US-201615751952-A
Country	US
Kind code	B2
Filing date	Sep 28, 2016
Priority date	Oct 1, 2015
Publication date	Jan 22, 2019
Grant date	Jan 22, 2019

Abstract

A compressor swash plate includes a base member having a flat plate shape, and a coating layer formed on a surface of the base member and having projections formed in a linear shape, in which the following inequalities are satisfied when a plane part formed on a prism is pressed against the coating layer with a pressure of 30 MPa: 0.01≤B≤0.06 and 10≤S≤40, where B indicates widths (mm) of surfaces of the projections in contact with the plane part, and S indicates a percentage (%) of a total sum of an area Si of the contact surfaces (a gross area of the surfaces of the projections in contact with the plane part) relative to a reference area (an area of a part of the coating layer against which the plane part is pressed).

First claim

The invention claimed is:

1. A compressor swash plate comprising:
a base member having a flat plate shape; and
a coating layer formed on a surface of the base member and having a projection formed in a linear shape,
wherein when a plane part formed on a pressing member is pressed against the coating layer with a pressure of 30 MPa, the coating layer is elastically deformed so that the following inequalities are satisfied,
0.01≤B≤0.06  (1)

10≤S≤40  (2)

0.001≤H≤0.01  (3)

0.005≤T≤0.06  (4)

where B indicates a width (mm) of a surface of the projection in contact with the plane part, S indicates a percentage (%) of a gross area of the surface of the projection in contact with the plane part relative to an area of a part of the coating layer against which the plane part is pressed, H indicates a height (mm) of the projection when the flat part is pressed on the coating layer, and T indicates a thickness (mm) of the coating layer when the flat part is pressed on the coating layer.

2. The compressor swash plate according to claim 1 , wherein
the projection is formed in a shape of a plurality of concentric circles.

3. A compressor comprising:
the compressor swash plate according to claim 2 ;
a rotary shaft supporting the compressor swash plate in a rotatable manner; and
a piston configured to reciprocate as the compressor swash plate rotates.

4. The compressor swash plate according to claim 1 , wherein
the projection is formed in a swirling shape.

5. A compressor comprising:
the compressor swash plate according to claim 4 ;
a rotary shaft supporting the compressor swash plate in a rotatable manner; and
a piston configured to reciprocate as the compressor swash plate rotates.

6. The compressor swash plate according to claim 1 , wherein
the projection is formed in a shape of a plurality of annular rings of which center points are different from each other.

7. A compressor comprising:
the compressor swash plate according to claim 6 ;
a rotary shaft supporting the compressor swash plate in a rotatable manner; and
a piston configured to reciprocate as the compressor swash plate rotates.

8. A compressor comprising:
the compressor swash plate according to claim 1 ;
a rotary shaft supporting the compressor swash plate in a rotatable manner; and
a piston configured to reciprocate as the compressor swash plate rotates.

Assignees

• Taiho Kogyo Co Ltd

Inventors

• Niimi Hideki
• Akizuki Masanori
• Kanemitsu Hiroshi

Classifications

• F16C2223/42

  by spraying the coating material, e.g. plasma spraying · CPC title

• F04B27/1036

  Component parts, details, e.g. sealings, lubrication · CPC title

• F16C17/10

  for both radial and axial load · CPC title

• F16C33/12

  Structural composition; Use of special materials or surface treatments, e.g. for rust-proofing · CPC title

• F04B27/10 Primary

  having stationary cylinders · CPC title