Pump oil mister
US5591020A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 19, 1994 |
| Grant date | Jan 7, 1997 |
| Priority date | — |
| Expiry date | May 19, 2014 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF16N2210/12
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A pump including a pump shaft bearing lubrication system having a main lubrication chamber (45) and a pair of auxiliary lubrication chambers (55 and 57), the auxiliary chambers being disposed on opposite sides of said main chamber. Pump shaft bearing assemblies (single or double row) are sandwiched between each auxiliary lubrication chamber and the main chamber (45) so that each bearing assembly (31 and 33) has its inner and outer sides simultaneously lubricated by fluid in the main and corresponding auxiliary chamber respectively. Each auxiliary lubrication chamber (55 and 57) is provided with a pair of fluid passageways (61 and 63) interfacing the auxiliary and main chambers so that the lubricating fluid can be circulated from the main chamber (45) to the auxiliary chambers (55, 57) and then back into the main chamber again, thereby constantly lubricating the bearing assemblies with cool, clean, and effective lubricating fluid. Furthermore, a lubricating fluid dispenser (35) is mounted on the pump shaft (7) within the main chamber (45), the dispenser (35) being positioned entirely above the lubricating fluid level such that heat generation within the main chamber is reduced, the …
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.