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US 8,262,377 B2Granted
Injection molded scroll form
AssigneeEmerson Climate Technologies, Inc.
InventorsJean-Luc M. Caillat, Kirill M. Ignatiev
Life of this patent
Estimating the term…
Abstract
Scrolls made from injection molding processes are disclosed. The scroll components have a tip seal groove defined within an involute portion of the scroll. Bearing and tip seal engaging plates are integrally molded within base members of the scroll.
Claims20
A scroll component comprising:
- an injection molded polymer scroll form comprising a base plate portion having an involute portion on a first side and a hub portion formed on a second side of the base plate portion opposite to the first side, wherein the hub portion is capable of receiving a portion of a drive shaft and the polymer scroll form comprises at least one reinforcement phase;
- and
- a first metal wear plate integrally molded into the first side of the base plate portion and a second metal wear plate integrally molded into a second side of the base plate portion.
A scroll component comprising:
- a scroll form comprising a base plate portion having an involute portion on a first side wherein the scroll form comprises a polymer and a reinforcement phase and defining a molded tip seal groove formed at a terminal end of the involute portion, wherein a material modulus of the scroll form is at least 10,000 MPa at an operational temperature up to 300° F.;
- a tip seal disposed in the molded tip seal groove;
- and
- a metal wear plate integrally molded into the first side of the base plate portion, wherein the metal wear plate has a serpentine shape and defines a tip seal engaging surface and further comprises at least one peripheral edge that defines at least one locking feature flange to join the base plate portion to the metal wear plate during injection molding.
1 more element
A scroll compressor comprising:
- a scroll member comprising a base plate portion having an involute portion on a first side and a hub portion formed on a second side of the base plate portion opposite to the first side, wherein the scroll member comprises a polymer and a reinforcement phase, wherein a material modulus of the scroll member is at least 10,000 MPa at an operational temperature up to 300° F., wherein the hub portion is capable of receiving a portion of a drive shaft and the involute portion defines a molded tip seal accepting groove that receives a tip seal;
- and wherein the first side of the base plate portion comprises an integrally molded metal tip seal engaging surface and the second side of the base plate portion comprises an integrally molded metal thrust bearing engaging surface disposed around the hub portion.
Dependencies are inferred from the claim text.