Filter system for internal combustion engines operated in a contaminated atmosphere
US7806948B2 · kind B2 · utility
13Cited by
12References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 13, 2007 |
| Grant date | Oct 5, 2010 |
| Priority date | — |
| Expiry date | Aug 24, 2028 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02A50/2351
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter system for ambient air to remove airborne particulates in air that is to be used for engine operation. A filter media that is pervious to air and impervious to the particulates may be coupled to a filtered air chamber, which in turn may supply filtered air to the engine's air intake system. In various embodiments, the engine's air intake may be used utilized to draw air through the filter media into the filtered air chamber. An pressurized gas pulsing system may be used to periodically urge reverse airflow through the bag walls to maintain the permeability of the walls to the clean air.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.