Magnetic debris trap

Details Magnetic debris trap Magnetic debris trap

1997-07-18

2000-03-21

Vrablik, John J.

Rotary expansible chamber devices

Working member has planetary or planetating movement

Helical working member, e.g., scroll

418 94, 184 616, 184 618, 184 625, F04C 2902, F01M 110

Patent

active

060395508

ABSTRACT:
A scroll compressor (10) is disclosed which incorporates a magnet (88) in a depression (90) formed in the lower shell (12) by forming a coined surface (82). The depression forms a side wall (92) which confines the magnet therein so that no additional fastening mechanism is required. The magnet is preferably a ring magnet (88) which is centered about the rotational axis of the drive shaft (40) and near the end of the oil pick-up tube (62) so that oil passes close to the magnet (88) as it enters the oil pick-up tube. The magnet separates magnetic debris, such as metal filings, from the oil. In another embodiment, a pair of magnets (112) can be positioned in multiple coined surfaces on the lower shell.

REFERENCES:
patent: 2622942 (1952-12-01), Munoz
patent: 3151703 (1964-10-01), Benk
patent: 4724928 (1988-02-01), Lewis et al.
patent: 4877382 (1989-10-01), Caillat et al.
patent: 5013225 (1991-05-01), Richardson, Jr.
patent: 5176506 (1993-01-01), Siebel
patent: 5345785 (1994-09-01), Sekigami et al.
patent: 5372490 (1994-12-01), Fain
patent: 5383534 (1995-01-01), Pollier

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