Air intake for a lean-burn gasoline engine
US12084995B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 26, 2021 |
| Grant date | Sep 10, 2024 |
| Priority date | — |
| Expiry date | Mar 26, 2041 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01L3/22
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
The combustion chamber inlet of a lean-burn gasoline engine (110) is connected to an air intake port outlet (15a, 15b) and comprises a throat where the air intake port (10) outlet meets the combustion chamber inlet. A movable valve (51) comprises a bottom surface (61) that faces the combustion chamber (50) and a tapered top surface (62) that faces the air intake port (10). The movable valve (51) is arranged to move between a closed state for closing off the combustion chamber inlet and an opened state wherein intake air can flow from the air intake port (10) into the combustion chamber (50). The throat comprises a tapered surface (71) that is complementary with the tapered top surface (62) of the movable valve (51).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.