Air intake apparatus of multi-cylinder engine having secondary gas inlet passage connected to intake air inlet passage
US10550804B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Nov 2, 2018 |
| Grant date | Feb 4, 2020 |
| Priority date | — |
| Expiry date | Nov 2, 2038 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
An air intake apparatus of a multi-cylinder engine includes an intake air inlet passage, an intake air distribution portion, a plurality of independent intake air passages, and a secondary gas inlet passage. The intake air inlet passage has one end portion attached to a throttle valve, and the other end connected to an intake air distribution portion. The intake air distribution portion has a space therein. The secondary gas inlet passage is connected at a part spaced apart, in the intake air inlet passage, from the throttle valve. The intake air distribution portion has a reflux passage which is a passage that connects the space and a part between the one end portion and the other end in the intake air inlet passage. The reflux passage is a passage which refluxes fresh air and secondary gas introduced from the intake air inlet passage to the intake air inlet passage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.