- 专利标题： Method for manufacturing cylinder head, and semimanufactured cylinder head
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申请号： US17253933申请日： 2018-06-28
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公开(公告)号： US11471937B2公开(公告)日： 2022-10-18
- 发明人: Masahiro Oomori , Hirohisa Shibayama , Kenji Yageta
- 申请人： NISSAN MOTOR CO., LTD.
- 申请人地址： JP Yokohama
- 专利权人： NISSAN MOTOR CO., LTD.
- 当前专利权人： NISSAN MOTOR CO., LTD.
- 当前专利权人地址： JP Yokohama
- 代理机构： Foley & Lardner LLP
- 国际申请： PCT/JP2018/024687 WO 20180628
- 国际公布： WO2020/003462 WO 20200102
- 主分类号： B23P11/00
- IPC分类号： B23P11/00 ; B22D15/02 ; B22D29/00 ; F01L3/04 ; F02F1/24 ; C23C24/04
摘要：
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).
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