Orbiting scroll platter mass reduction

Patent metadata

Field	Value
Publication number	US-12117000-B2
Application number	US-202318317333-A
Country	US
Kind code	B2
Filing date	May 15, 2023
Priority date	Jun 9, 2022
Publication date	Oct 15, 2024
Grant date	Oct 15, 2024

Abstract

An orbiting scroll of a scroll compressor includes a platter wall having a first face including a spiral structure projecting therefrom, a second face having a coupling structure configured to couple the orbiting scroll to a drive mechanism of the scroll compressor, and a circumferential surface connecting the first face to the second face in an axial direction of the platter wall. The orbiting scroll includes a mass reduction feature provided as an inwardly indented channel formed in the circumferential surface. The channel is further configured to form a retaining feature for retaining a rim of a mask during a process of coating the spiral structure of the first face with a surface coating.

First claim

What is claimed is:

1. An orbiting scroll of a scroll compressor comprising:
a longitudinal axis; and
a platter wall having a first face including a spiral structure projecting therefrom disposed along the axis, the platter wall having a second face disposed along the axis including a coupling structure configured to couple the orbiting scroll to a drive mechanism of the scroll compressor and a circumferential surface connecting the first face to the second face in the axial direction of the platter wall about a periphery of each of the first face and the second face, the orbiting scroll including a first mass reduction feature provided as an inwardly indented channel formed in the circumferential surface, the channel being disposed along the circumferential surface respectively spaced apart from both the first face and the second face, wherein the channel forms a retaining feature configured to retain a rim of a mask therein, the mask configured to mask at least a portion of the circumferential surface of the platter wall when the rim thereof is retained within the channel.

2. The orbiting scroll of claim 1 , wherein the channel defines an undercut in the circumferential surface relative to at least one of the periphery of the first face or the periphery of the second face.

3. The orbiting scroll of claim 1 , wherein the channel defines an annular void in the platter wall.

4. The orbiting scroll of claim 3 , wherein the annular void is axially aligned with at least a portion of at least one of the first face or the second face.

5. The orbiting scroll of claim 3 , wherein at least a portion of the platter wall is disposed directly between the annular void and one of the first face or the second face with respect to the axial direction of the platter wall.

6. The orbiting scroll of claim 1 , wherein the orbiting scroll includes a second mass reduction feature provided as at least one indentation formed in the second face, wherein the second mass reduction feature does not engage another component of the scroll compressor during an orbiting of the orbiting scroll therein.

7. The orbiting scroll of claim 1 , wherein the channel extends in at least the axial direction within the platter wall and an axial cross section of the channel includes an axial cross section shape of the channel having rectangular shape that is further defined by concave portions.

8. The orbiting scroll of claim 1 , wherein the circumferential surface includes a first axially extending surface extending from the first face to a first axial end of the channel, and wherein the circumferential surface is indented radially inwardly along the channel relative to the first axially extending surface.

9. The orbiting scroll of claim 8 , wherein the circumferential surface further includes a second axially extending surface extending from the second face to a second axial end of the channel, wherein the circumferential surface is indented radially inwardly along the channel relative to a the second axially extending surface of the circumferential surface.

10. The orbiting scroll of claim 8 , wherein the circumferential surface is devoid of an edge where the circumferential surface transitions from the first axially extending surface to the convex arcuate surface at the first axial end of the channel.

11. The orbiting scroll of claim 8 , wherein the circumferential surface includes a convex arcuate surface formed along the channel at the first axial end thereof, and wherein the first axially extending surface extends tangentially from the convex arcuate surface at the first axial end of the channel.

12. The orbiting scroll of claim 11 , wherein the circumferential surface includes a concave arcuate surface formed along the channel at a position disposed radially inwardly of the convex arcuate surface.

13. The orbiting scroll of claim 12 , wherein the circumferential surface includes an axially extending segment formed along the channel, and wherein the axially extending segment extends tangentially from the concave arcuate surface.

14. A method of manufacturing an orbiting scroll of a scroll compressor, the method comprising the steps of:
forming a platter wall having a first face including a spiral structure projecting therefrom disposed along a longitudinal axis, the platter wall including a second face disposed along the axis having a coupling structure configured to couple the orbiting scroll to a drive mechanism of the scroll compressor, and a circumferential surface connecting the first face to the second face in the axial direction of the platter wall about a periphery of each of the first face and the second face;
removing material from the platter wall along the circumferential surface thereof following the forming of the platter wall to reduce a mass thereof, the removing of the material from the circumferential surface forming an inwardly indented channel therein, the channel being disposed along the circumferential surface respectively spaced apart from both the first face and the second face; and
disposing a mask over a portion of the platter wall, the step of disposing the mask over the portion of the platter wall including a circumferentially extending rim of the mask retained within the channel of the circumferential surface of the platter wall.

15. The method of claim 14 , wherein the circumferential surface has a cylindrical shape following the step of forming the platter wall, and wherein the circumferential surface is formed to be radially inwardly indented along the channel relative to the cylindrical shape following the step of forming the platter wall.

16. The method of claim 14 , further comprising a step of removing material from the platter wall along the second face thereof following the step of forming of the platter wall to further reduce the mass thereof, the removing of the material from the second face forming an inwardly indented surface of the second face that is configured to not engage another component of the scroll compressor during an orbiting of the orbiting scroll therein.

17. The method of claim 14 , further comprising a step of coating the spiral structure projecting from the first face of the platter wall with a surface coating following the step of forming the platter wall and the step of disposing the mask over the portion of the platter wall.

18. The method of claim 14 , wherein the rim of the mask is retained within the channel by one of elastically receiving the mask over the second face of the platter wall or molding the rim of the mask directly into the channel.

19. An orbiting scroll of a scroll compressor comprising:
a platter wall having a first face including a spiral structure projecting therefrom, a second face having a coupling structure configured to couple the orbiting scroll to a drive mechanism of the scroll compressor, and a circumferential surface connecting the first face to the second face in an axial direction of the platter wall about a periphery of each of the first face and the second face, the orbiting scroll including a first mass reduction feature provided as a channel formed in the circumferential surface, wherein the circumferential surface includes a first axially extending surface extending from the first face to a first axial end of the channel, wherein the circumferential surface is indented radially inwardly along the channel relative to the first axially extending surface, wherein the channel is formed by a first inclined surface inclined relative to the first axially extending surface, a second inclined surface in

Assignees

• Hanon Systems

Inventors

• Koester Steven
• Stehouwer Rance
• Silva Armando Nelson Pedro Da
• Salvador Susana Isabel Nobre

Classifications

• F04C2230/60

  Assembly methods · CPC title

• F04C2230/91

  Coating · CPC title

• F04C2230/10

  by removing material · CPC title

• F04C2240/20

  Rotors · CPC title

• F04C18/0253 Primary

  Details concerning the base · CPC title