Exhaust purifying apparatus for internal combustion engine
US7665297B2 · kind B2 · utility
14Cited by
8References
8Claims
0Family size
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Key dates
| Filing date | Mar 14, 2005 |
| Grant date | Feb 23, 2010 |
| Priority date | — |
| Expiry date | Dec 10, 2026 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/40
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An internal combustion engine has a separate exhaust passage for each one of banks. An exhaust purifying catalyst is provided in each exhaust passage. The mass flow rates G1, G2 of exhaust gas that flow through the exhaust passages are individually estimated. The flow rate of exhaust gas is individually adjusted per each bank by controlling the operation of each one of exhaust gas recirculation valves such that the difference between the estimated mass flow rates G1, G2 is decreased.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.