Exhaust apparatus of an internal combustion engine
US7527126B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2005 |
| Grant date | May 5, 2009 |
| Priority date | — |
| Expiry date | Nov 25, 2025 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A single valve member is provided for selecting communication of one of two flow passages constituting an exhaust flow passage, and continuously providing a flow passage area of the selected one of the two flow passages. According to this valve member, a changeover of flow passage between a main flow passage with an exhaust processing device disposed therein and a bypass flow passage is performed, and each flow passage area is regulated, to meet an output requirement, exhaust processing requirement and muffling requirement, appropriately. For example, a single valve member 5 is disposed on the upstream side or downstream side of a start catalytic converter 3, whereby communication of one of a main flow passage 1 and a bypass flow passage 2 is selected, and a flow passage area of the selected passage is continuously provided.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.