Scroll compressor

Patent metadata

Field	Value
Publication number	US-10125769-B2
Application number	US-201515117206-A
Country	US
Kind code	B2
Filing date	Jan 5, 2015
Priority date	Feb 17, 2014
Publication date	Nov 13, 2018
Grant date	Nov 13, 2018

Abstract

A scroll compressor is provided that can cool a fixed scroll and an orbiting scroll effectively via cooling fins. A scroll compressor includes: a fixed scroll, an orbiting scroll that performs orbiting motion with respect to the fixed scroll and is combined with the fixed scroll so as to form, with the fixed scroll, a compression space to compress fluid; cooling fins that are provided on the back of the fixed scroll; and cooling fins that are provided on the back of the orbiting scroll. The cooling fins and the cooling fins are taller in a central portion than in the circumference of the central portion.

First claim

The invention claimed is:

1. A scroll compressor comprising:
a fixed scroll that includes a front on which a fixed-side wrap portion is provided and a back on which a fixed-side cooling fin portion is provided; and
an orbiting scroll that is combined with the fixed scroll so as to form, with the fixed scroll, a compression space to compress fluid and includes a front on which an orbiting-side wrap portion is provided and a back on which an orbiting-side cooling fin portion is provided, wherein
both of the fixed-side cooling fin portion comprising a plurality of fins and the orbiting-side cooling fin portion comprising a plurality of fins are each configured such that the fins positioned in a central portion are taller than the fins positioned in an outer circumferential portion around the central portion, and
both of the fixed-side cooling fin portion and the orbiting-side cooling fin portion are each configured such that front ends thereof are aligned with a single plane.

2. The scroll compressor according to claim 1 , wherein one or both of the fixed-side cooling fin portion and the orbiting-side cooling fin portion are each configured to be taller in a stepwise manner or continuously as extending toward the central portion.

3. The scroll compressor according to claim 1 , wherein one or both of a fixed-side end plate on which the fixed-side cooling fin portion is provided and an orbiting-side end plate on which the orbiting-side cooling fin portion is provided are each configured so as to have a wall thickness that is smaller in a central portion in a radial direction than in an outer circumferential portion around the central portion.

4. The scroll compressor according to claim 3 , wherein each of the fixed-side wrap portion and the orbiting-side wrap portion is provided with level differences in an addendum and a basal portion so as to be taller in the outer circumferential portion than in the central portion.

Assignees

• Mitsubishi Heavy Ind Ltd

Inventors

• Sato Hajime
• Sakuda Takashi

Classifications

• F04C18/0269

  Details concerning the involute wraps · CPC title

• F04C29/04 Primary

  Heating; Cooling (of machines or engines in general F01P); Heat insulation (heat insulation in general F16L59/00) · CPC title

• F01C17/066

  with an intermediate piece sliding along perpendicular axes, e.g. Oldham coupling · CPC title

• F04C2240/52

  for assemblies with supports on both sides · CPC title

• F04C18/0284

  Details of the wrap tips · CPC title