Compressor
AssigneeHitachi Industrial Equipment Systems Co., Ltd.
InventorsTasuku Onodera, Yoshio Kobayashi
Life of this patent
Estimating the term…
Abstract
Provided is a compressor including a sliding material with the wear resistance improved. To solve this problem, a compressor (40) includes: a compression chamber (43) that is formed in a cylinder (41) and compresses gas; and a piston ring 421 and a rider ring 422 that are in contact with the inner wall of the cylinder 41 to form the compression chamber (43). The piston ring 421 and rider ring 422 include: a resin member; and a metal particle that is located within the resin member and includes a surface layer containing an affinity portion having an affinity to the resin member.
Claims13
A compressor, comprising:
- a compression chamber that is formed in a metal housing and is configured to compress gas;
- and
- a sliding material that is in contact with an inner wall of the metal housing to form the compression chamber, wherein
- the sliding material includes:
- a resin member;
- and
- a metal particle that is located within the resin member and includes a surface layer containing an affinity portion having an affinity to the resin member, wherein
- the affinity portion contains a functional group containing oxygen,
- the surface layer is a coupling layer that couples organic substances and inorganic substances,
- the resin member is fluorine-based resin,
- the surface layer has a thickness of not less than 1/10000 and not greater than 1/100 of the particle size of the metal particle,
- a particle diameter of the metal particle is between 10 to 250 μm, and
- the metal particle is made of copper or copper alloy.
A compressor, comprising:
- a compression chamber that is formed in a metal housing and is configured to compress gas;
- and
- a sliding material that is in contact with an inner wall of the metal housing to form the compression chamber, wherein
- the sliding material includes:
- a resin member;
- and
- a metal particle that is located within the resin member and includes a core and a surface layer which is formed of the surface of the core and has a higher adhesion strength to the resin member than the core, wherein
- the affinity portion contains a functional group containing oxygen,
- the surface layer is a coupling layer that couples organic substances and inorganic substances,
- the resin member is fluorine-based resin,
- the surface layer has a thickness of not less than 1/10000 and not greater than 1/100 of the particle size of the metal particle,
- a particle diameter of the metal particle is between 10 to 250 μm, and
- the metal particle is made of copper or copper alloy.
A compressor, comprising:
- a compression chamber that is formed in a metal housing and is configured to compress gas;
- and
- a sliding material that is in contact with an inner wall of the metal housing to form the compression chamber, wherein
- the sliding material includes:
- a resin member;
- and
- a metal particle that is located within the resin member and includes a surface layer formed by a conversion coating process to enhance the affinity to the resin member, wherein
- the affinity portion contains a functional group containing oxygen,
- the surface layer is a coupling layer that couples organic substances and inorganic substances,
- the resin member is fluorine-based resin,
- the surface layer has a thickness of not less than 1/10000 and not greater than 1/100 of the particle size of the metal particle,
- a particle diameter of the metal particle is between 10 to 250 μm, and
- the metal particle is made of copper or copper alloy.
Dependencies are inferred from the claim text.