Combination air-filter/air-oil separator with integral vacuum regulator
US6009846A · kind A · utility
Inventor
Key dates
| Filing date | Mar 5, 1998 |
| Grant date | Jan 4, 2000 |
| Priority date | — |
| Expiry date | Mar 5, 2018 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/21
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The combination apparatus silences and filters air flow, separates air-contaminant mixtures, and maintains a regulated vacuum therein. An air filter joins an annular housing which has an outer wall and a channel defining a central axis, the channel having a primary gas inlet coupled to the air filter and a primary gas outlet and a channel wall. The apparatus has a secondary inlet port passing through the outer wall. A secondary outlet port defines an opening in the channel wall such that there is no straight line flow path between the secondary inlet and the secondary outlet. An air silencer is contained within the channel. A passageway between the secondary inlet and the secondary outlet is defined exteriorly by the outer wall and interiorly by the channel wall. A vacuum regulating means is disposed within the annular housing and is positioned next to an opening in the secondary outlet to regulate the amount of vacuum imposed within the passageway so that it does not exceed a determined maximum.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.