Magnetic debris trap
US6039550A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 18, 1997 |
| Grant date | Mar 21, 2000 |
| Priority date | — |
| Expiry date | Jul 18, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB03C1/286
- WIPO fieldChemical engineering
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.