Axial bearing arrangement for a hermetic compressor

Details Axial bearing arrangement for a hermetic compressor Axial bearing arrangement for a hermetic compressor

2006-11-21

2006-11-21

Stashick, Anthony (Department: 3746)

Pumps

Motor driven

Electric or magnetic motor

C417S372000

Reexamination Certificate

active

07137791

ABSTRACT:
A reciprocating hermetic compressor includes a cylinder block internal to a shell and carrying a cylinder and a radial bearing hub; a crankshaft vertically mounted in the radial bearing hub and carrying, inferiorly, a rotor of an electric motor and, superiorly, a support annular face and an eccentric portion. The radial bearing hub incorporates an upper tubular extension, bearing a corresponding extension of the crankshaft and around which is mounted an axial rolling bearing for supporting the weight of the crankshaft-rotor assembly, as well as the axial stresses produced during compression of the refrigerant gas.

REFERENCES:
patent: 3606594 (1971-09-01), Smith
patent: 4647228 (1987-03-01), Jensen et al.
patent: 4718830 (1988-01-01), Middleton et al.
patent: 5052825 (1991-10-01), Battig
patent: 6838788 (2005-01-01), Park et al.
patent: 2005/0089416 (2005-04-01), Lee
patent: WO 9425768 (1994-11-01), None
patent: WO-97/34088 (1997-09-01), None

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