Powder metal scrolls
AssigneeEmerson Climate Technologies, Inc.
InventorMarc J. Scancarello
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Abstract
Scrolls made from one or more near-net shaped powder metal processes either wholly or fabricated together from sections. Both “conventional” press and sinter methods and metal injection molding methods will be described.
Claims23
A scroll component for a scroll machine, comprising a sintered powder metal scroll member defining an involute scroll form and a baseplate, wherein the sintered powder metal scroll member comprises a sealing polymer disposed in pores of the sintered powder metal after sintering.
A scroll component for a scroll machine, comprising:
- a sintered powder metal scroll member defining an involute scroll form and a baseplate;
- and
- at least one machined surface region corresponding to a region of the sintered powder metal scroll member having a sealing polymer disposed in pores of the sintered powder metal after sintering.
A method for forming a scroll component for a scroll machine, the method comprising:
- sintering a powder metal to form a sintered powder metal scroll member defining an involute scroll form and a baseplate;
- impregnating pores of a surface of the sintered powder metal scroll member with a sealing polymer after the sintering;
- and
- machining at least one region of the surface of the sintered powder metal scroll member having pores impregnated with the sealing polymer.
Dependencies are inferred from the claim text.