Engine operating method and engine system for improved load step acceptance
US11280260B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 25, 2020 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | Oct 3, 2040 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Operating an engine system includes feeding a flow of exhaust to a turbine in a turbocharger, receiving a load step request, and increasing a speed of rotation of the turbocharger based on an increase in a fueling rate initiated in response to the load step request. Operating the engine system further includes limiting dissipation of heat energy of the flow of exhaust to the turbine to hasten an increase in the speed of rotation of the turbocharger, and increasing dissipation of heat energy from the flow of exhaust after satisfaction of the load step request. Varying of the dissipation of heat energy can be achieved by displacing an insulating fluid in the exhaust manifold with a heat exchange fluid such as water and/or engine coolant.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.