Air filter assembly for filtering air with particulate matter
US5562746A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 27, 1995 |
| Grant date | Oct 8, 1996 |
| Priority date | — |
| Expiry date | Sep 27, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2271/022
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An air filter assembly for filtering air with particulate matter therein is provided. The air filter assembly includes a housing having an air inlet and an air outlet, and a spacer wall separating the housing into a filtering chamber and a clean air chamber. The spacer wall includes a first air flow aperture therein. The assembly includes a filter element positioned in air flow communication with the first air flow aperture. The assembly also includes a Venturi element mounted in the spacer wall first air flow aperture. The Venturi element includes a bell-mouth-shaped end portion which projects into an inner clean air chamber of the first filter element. The assembly includes a pulse jet cleaning apparatus having a nozzle oriented to direct a pulse of air into the first Venturi element in a direction toward the first filter element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.