Engine intake air system including CAC bypass and separate bypass heater, and high-efficiency spark-ignited direct injection liquid propane engine architectures including same
US11060468B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 21, 2018 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Jul 8, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/30
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An intake air circuit is structured to transmit intake air from a turbocharger compressor to an intake manifold of an engine. A charge air cooler (“CAC”), a bypass line, and a bypass heater are each positioned along the intake air circuit in parallel with each other. A first control valve is structured to controllably divert the intake air around the CAC. A second control valve is structured to controllably divert the intake air around at least one of the bypass line and the bypass heater. A controller operatively coupled to each of the engine, and the first and second control valves is structured to control each of the first and second control valves to cause the intake air to flow along a determined desired flow path based on each of measured ambient temperature and measured engine load.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.