Exhaust gas management apparatus and method
US5766559A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 1997 |
| Grant date | Jun 16, 1998 |
| Priority date | — |
| Expiry date | Feb 3, 2017 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
An exhaust gas management apparatus including: an air flow directing body forming a bypass passage including an inlet end and an outlet end and defining a low pressure region between the inlet end and the outlet end having a first diameter less than second and third diameters of the inlet and outlet ends, respectively; a hydrocarbon adsorber mounted radially exterior of the air flow directing body; an air source located downstream in an exhaust flow path of the low pressure region of the air flow body; and an air pump forcing air through the air source wherein, during activation of the pump, the bypass passage is valved shut at the low pressure region, wherein less air is required to valve shut the bypass passage than would be required at another location within the bypass passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.