Combination in-line air-filter/air-oil separator/air-silencer with preseparator
US5479907A · kind A · utility
Inventor
Key dates
| Filing date | Jul 12, 1994 |
| Grant date | Jan 2, 1996 |
| Priority date | — |
| Expiry date | Jul 12, 2014 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/21
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The combination apparatus, preseparator, vacuum regulator and check valve silences and filters air flow and separates air-contaminant mixtures. The combination apparatus comprises an annular housing having an outer wall and a channel defining a central axis. The channel has a primary gas inlet coupled to an air filter, a primary gas outlet coupled to an engine induction system, and a channel wall therebetween. A secondary inlet port passes through the outer wall and a secondary inlet port defines an opening in the channel. A baffle is axially disposed within the housing defining a first and second flow passageway. Second baffles are disposed within the first and second passageways to effect serpentine flow through each flow passageway and filter material is disposed within each flow passageway. A preseparator is coupled between the secondary inlet and an engine breather and has an annular housing with preseperator baffles disposed therein for effecting serpentine flow therethrough. Filter material is disposed within the preseparator. A vacuum regulator is coupled between the preseparator and engine breather and a check valve is coupled between a drain coupling in the combination ap…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.