发明公开
EP4180647A1 PISTON, DEVICE FOR MANUFACTURING PISTONS, AND METHOD FOR MANUFACTURING PISTONS
审中-实审
基本信息:
- 专利标题： PISTON, DEVICE FOR MANUFACTURING PISTONS, AND METHOD FOR MANUFACTURING PISTONS
- 申请号：EP20944794.5 申请日：2020-12-07
- 公开(公告)号：EP4180647A1 公开(公告)日：2023-05-17
- 发明人： LI, Zhijie , QI, Shaobao , WANG, Shijie , MA, Fei , XIA, Yuan
- 申请人： Weichai Power Co., Ltd.
- 申请人地址： CN Weifang, Shandong 261061 197 A, Fushou East Street High-Tech Development Zone
- 代理机构： Zacco Sweden AB
- 优先权： CN202010643583 20200707
- 国际公布： WO2022007323 20220113
- 主分类号： F02F3/00
- IPC分类号： F02F3/00 ; F02F3/10 ; C25D7/04 ; C25D15/00 ; C25D3/02
摘要：
Provided are a piston, a piston manufacturing device, and a piston manufacturing method. The piston includes a piston base (100), a porous function layer (101), a micropore filling layer (102), and a closing layer (103). The porous function layer (101) is disposed on a top surface of the piston base (100). The micropore filling layer (102) is disposed on a top surface of the porous function layer (101). The diameter of a pore in the micropore filling layer (102) is smaller than the diameter of a pore in the porous function layer (101). The closing layer (103) is disposed on a top surface of the micropore filling layer (102) and configured to partially block the pores in the micropore filling layer (102).
IPC结构图谱:
| F | 机械工程；照明；加热；武器；爆破 |
| --F02 | 燃烧发动机；热气或燃烧生成物的发动机装置 |
| ----F02F | 燃烧发动机的汽缸、活塞或曲轴箱；燃烧发动机的密封装置 |
| ------F02F3/00 | 活塞 |