Method for manufacturing cylinder head, and semimanufactured cylinder head
US11471937B2 · kind B2 · utility
0Cited by
2References
6Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 28, 2018 |
| Grant date | Oct 18, 2022 |
| Priority date | — |
| Expiry date | Nov 15, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF02F2200/06
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
The disclosure includes manufacturing a semimanufactured cylinder head (3) having a shielding curtain portion (16g) and spraying metal powder (P) onto an annular valve seat portion (16f) using a cold spray method to form a valve seat film (16b). The shielding curtain portion (16g) projects in an annular shape from an annular edge portion of an opening portion (16a) of an intake port (16) or an opening portion (17a) of an exhaust port (17) toward the center (C) of the port. The annular valve seat portion (16f) is located on an outer side of the port than the shielding curtain portion (16g).
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.