Inlet duct for internal combustion engine
US11060489B2 · kind B2 · utility
2Cited by
9References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Apr 6, 2018 |
| Grant date | Jul 13, 2021 |
| Priority date | — |
| Expiry date | Oct 17, 2039 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2031/3032
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An inlet duct for an internal combustion engine includes a duct member made of a compression molded fiber material. The duct member includes a main body and end portions provided on opposite sides in an axial direction of the main body. The main body includes at least one high-compression portion and at least one low-compression portion, which is made through compression molding at a compression ratio lower than that of the at least one high-compression portion. The at least one low-compression portion extends throughout a length in the axial direction of the main body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.