Thermal and sound optimized lattice-cored additive manufactured compressor components

Patent metadata

Field	Value
Publication number	US-10634143-B2
Application number	US-201615366885-A
Country	US
Kind code	B2
Filing date	Dec 1, 2016
Priority date	Dec 23, 2015
Publication date	Apr 28, 2020
Grant date	Apr 28, 2020

Abstract

A light-weight, high-strength insulating compressor component formed via additive manufacturing is provided. The component may have at least one interior region comprising a lattice structure that comprises a plurality of repeating cells. A solid surface is disposed over the lattice structure. The interior region comprising the lattice structure minimizes or reduces transmission of at least one of thermal energy, sound, or vibrational energy through the component. Methods of making such compressor components via additive manufacturing processes are also provided.

First claim

What is claimed is:

1. A light-weight, high-strength sound insulating compressor component comprising:
a body portion having at least one sealed interior region that comprises a metallic lattice structure comprising a plurality of cells formed via additive manufacturing and a surface disposed over the metallic lattice structure, wherein each cell of the plurality comprises a node and a solid structure defining one or more void regions therebetween, the plurality of cells comprising a plurality of first cells comprising a first node and a plurality of second cells comprising a second node, wherein the first node comprises a solid sphere and the second node comprises a hollow sphere, and the plurality of first cells defining a first row having a first major longitudinal axis and the plurality of second cells defining a second row having a second major longitudinal axis, wherein the at least one sealed interior region comprising the lattice structure minimizes transmission of at least one of sound or vibrational energy, the first major longitudinal axis and the second major longitudinal axis are parallel to one another and orthogonal to a primary direction of propagation of the sound or vibrational energy and the body portion thus defines at least one sound insulating region that reduces a transmission of sound or a vibrational energy by greater than or equal to about 30% as compared to transmission of the sound or the vibrational energy through a comparative solid body portion devoid of the at least one sealed interior region that comprises a lattice structure.

2. The light-weight high-strength insulating compressor component of claim 1 , wherein each cell of the plurality of cells has a maximum average dimension of greater than or equal to about 0.1 mm to less than or equal to about 10 mm.

3. The light-weight high-strength insulating compressor component of claim 1 , wherein the plurality of first cells has a first maximum average dimension and the plurality of second cells has a second maximum dimension, wherein the first maximum average dimension and the second maximum average dimension are distinct from one another to provide a lattice structure having a varying cell density.

4. The light-weight high-strength insulating compressor component of claim 1 , wherein the one or more void regions comprises loose residual metal particles or an insulating material disposed therein.

5. The light-weight high-strength insulating compressor component of claim 1 , wherein the solid structure of the first plurality of cells has a different thickness from a thickness of the solid structure in the second plurality of cells.

6. The light-weight high-strength insulating compressor component of claim 1 , wherein the component has a tensile strength of greater than or equal to about 32,000 psi (about 220 MPa).

7. The light-weight high-strength insulating compressor component of claim 1 , wherein each first cell and each second cell are disposed adjacent to one another in an alternating pattern.

8. A light-weight, high-strength insulating scroll compressor component comprising:
a body portion having at least one sealed interior region that comprises a metallic lattice structure comprising a plurality of cells formed via additive manufacturing and a surface disposed over the metallic lattice structure, wherein each cell of the plurality comprises a node and the at least one sealed interior region comprising the lattice structure minimizes transmission of at least one of sound or vibrational energy, wherein the plurality of cells comprises a plurality of first cells comprising a first node and a plurality of second cells comprising a second node, wherein the first node comprises a solid sphere and the second node comprises a hollow sphere, and the plurality of first cells defining a first row having a first major longitudinal axis and the plurality of second cells defining a second row having a second major longitudinal axis, the first major longitudinal axis and the second major longitudinal axis are parallel to one another and orthogonal to a primary direction of propagation of the sound or vibrational energy and the body portion thus defines at least one sound insulating region that reduces a transmission of sound or a vibrational energy by greater than or equal to about 30% as compared to transmission of the sound or the vibrational energy through a comparative solid body portion devoid of the at least one sealed interior region that comprises a lattice structure, wherein the light-weight, high-strength insulating scroll compressor component is selected from the group consisting of: a bearing housing, a main bearing housing, a lower bearing housing, an orbiting scroll component, a non-orbiting scroll component, a housing or a shell, a cap, a cover, a separator plate, a muffler plate, an Oldham coupling, a scroll compressor valve, a drive bushing, a bearing, a crankshaft, and combinations thereof.

9. The light-weight high-strength insulating scroll compressor component of claim 8 , wherein the component has a tensile strength of greater than or equal to about 32,000 psi (about 220 MPa).

10. The light-weight high-strength insulating scroll compressor component of claim 8 , wherein the at least one sealed interior region forms a thermally insulating sealed region having a thermal conductivity (K) of less than or equal to about 300 mW/m·K at standard temperature and pressure conditions.

Assignees

• Emerson Climate Technologies

Inventors

• Scancarello Marc J
• Stover Robert C

Classifications

• F05C2253/083

  Directionally-solidified crystalline structure · CPC title

• F05C2201/021

  Aluminium · CPC title

• F04C2230/20

  essentially without removing material · CPC title

• F04C29/063 Primary

  Sound absorbing materials · CPC title

• F04C18/0215

  where only one member is moving · CPC title