| CPC F04C 18/0215 (2013.01) [F04C 29/0021 (2013.01); F04C 29/005 (2013.01); F04C 2230/605 (2013.01); F04C 2240/60 (2013.01); F04C 2240/807 (2013.01)] | 13 Claims |
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1. A compressor comprising:
a shell;
a non-orbiting scroll disposed within the shell;
an orbiting scroll disposed within the shell and meshed with the non-orbiting scroll;
a driveshaft operable to drive the orbiting scroll relative to the non-orbiting scroll; and
a ring-shaped counterweight assembly positioned on the driveshaft and having two radial surfaces and a circumferential edge between the two radial surfaces, wherein the counterweight assembly comprises:
a counterweight fixed on the driveshaft, the counterweight including a coupling ring and a main weight extending from the coupling ring, the coupling ring defining a bore sized and shaped to receive the driveshaft to fix the counterweight on the driveshaft, wherein the main weight has a semi-circular shape with two circumferential counterweight end surfaces; and
a cover attached to the coupling ring via a snap fit connection, wherein the counterweight and the cover cooperate to define the counterweight assembly, wherein the cover extends circumferentially between two cover end surfaces each positioned adjacent one of the counterweight end surfaces, wherein the cover includes:
(i) a shell defining a mouth that receives the coupling ring; and
one of:
teeth that engage ridges on two radial surfaces of the coupling ring to form the snap fit connection; or
slots that receive ridges on two radial surfaces of the coupling ring to form the snap fit connection; or
(ii) a multi-piece shell comprising a top and a bottom and defining a mouth that receives the coupling ring, wherein the top and the bottom are connected via snap fittings extending through the coupling ring.
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