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US 2012/0247141 A1Published application
Reciprocating Refrigeration Compressor Oil Sealing
AssigneeCarrier Corporation
InventorsAlexander Lifson, John Mulcahy
Life of this patent
Estimating the term…
Abstract
A compressor (20) has a case (22) and a crankshaft (38). The case has at least one cylinder (30 32). For each of the cylinders, the compressor includes a piston (34) mounted for reciprocal movement at least partially within the cylinder. A connecting rod (36) couples each piston to the crankshaft. The case has a wall through which the crankshaft extends. The case bears a lip seal as a primary seal (97). The lip seal engages an adjacent portion (86) of the crankshaft. The adjacent portion bears a coating (140).
Claims16
A compressor (20) comprising:
- a case (22) having:
- an inlet;
- at least one cylinder (30-32);
- a crankcase compartment (48);
- and
- an outlet;
- a crankshaft (38), the case having a wall through which the crankshaft extends;
- for each of said cylinders:
- a piston (34) mounted for reciprocal movement at least partially within the cylinder;
- a connecting rod (36) coupling the piston to the crankshaft;
- and
- a wrist pin (44) coupling the connecting rod to the piston;
- wherein:
- the case bears a primary seal (97), the primary seal being a lip seal engaging an adjacent portion (86) of the crankshaft;
- and
- the adjacent portion bears a coating (140).
13 more elements
Dependencies are inferred from the claim text.