Lubricating device for a motor compressor
US4375944A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 3, 1978 |
| Grant date | Mar 8, 1983 |
| Priority date | — |
| Expiry date | Apr 3, 1998 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2210/10
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A lubricating device, especially for use with a hermetic motor compressor unit, having a vertical shaft extending downwardly into a lubricant sump. The lubricating device comprises a pick-up tube having a larger diameter upper cylindrical portion open at the upper end thereof and adapted for being fitted into a central bore in the shaft, a smaller diameter lower cylindrical portion adapted to be immersed in fluid in the sump, a tapering transition region connecting the upper and lower cylindrical portions, an inlet port extending axially into the lower end of the lower portion, and the pair of diametrally opposite ribs on the lower cylindrical portion comprising ridges on the inner surface and corresponding hollows on the outer surface thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.