Air induction systems for internal combustion engines
US10544759B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 24, 2017 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Sep 14, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02M35/161
- WIPO fieldEngines, pumps, turbines
- WIPO sectorMechanical engineering
Abstract
Air induction systems are for an internal combustion engine. The air induction systems comprise an air intake plenum that conducts intake airflow to an air cleaner for cleaning prior to combustion in the internal combustion engine. The air intake plenum is movable with respect to the air cleaner between an open position separated from the air cleaner and a closed position connected to the air cleaner. A bellows connects the air intake plenum to the air cleaner when the air intake plenum is in the closed position. The bellows has an upstream first end that seals with the air intake plenum and a downstream second end that seals with the air cleaner. A spring is disposed in the bellows. The spring applies a biasing pressure on the bellows that encourages sealing between the bellows and at least one of the air intake plenum and the air cleaner when the air intake plenum is in the closed position. A shield is provided that blocks inflow of rain water to the bellows when the air intake plenum is in the open position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.