Lubrication system
US6199663A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 1999 |
| Grant date | Mar 13, 2001 |
| Priority date | — |
| Expiry date | Apr 22, 2019 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T74/2189
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A lubrication system includes a fluid reservoir, a housing having an interior with an inlet and an outlet fluidly coupled to the reservoir, a fluid pump configured to pump fluid from the reservoir to the interior of the housing through the inlet and a fluid conduit between the fluid pump and the inlet of the axle housing. The conduit has an inflow portion, an outflow portion, a throat and an aspiration passage. The inflow portion has a first cross sectional area. The outflow portion has a second cross sectional area. The throat extends between the inflow and outflow portions, has an exit proximate the outflow portion and has a third cross sectional area less than the first and second cross sectional areas. The aspiration passage extends from a location proximate the exit of the throat to a source of air. Fluid pumped through the first and second internal portions of the fluid conduit by the fluid pump draws air into the outflow portion through the aspiration passage to aerate the fluid. The aerated fluid expels fluid from the interior of the housing through the outlet and back to the fluid reservoir. A method for lubricating and cooling an axle within a housing includes the steps o…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.