Exhaust gas temperature control
US12392297B1 · kind B1 · utility
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20Claims
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Key dates
| Filing date | Nov 11, 2024 |
| Grant date | Aug 19, 2025 |
| Priority date | — |
| Expiry date | Nov 11, 2044 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02D2041/001
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
A vehicle engine adapted to control exhaust gas temperature (EGT) at a catalyst inlet includes an EGT sensor in communication with a system controller and adapted to measure a temperature of exhaust gas at the catalyst inlet, the system controller adapted to compare the measured EGT to a target EGT, and, when the measured EGT is greater than the target EGT, limit gas exchange within a cylinder within the engine during an intake stroke, and increase turbine efficiency of a variable geometry turbocharger of the engine by increasing boost from the variable geometry turbocharger.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.