发明名称 |
PROCESSO DE FABRICACAO DE CABECA DE EMBOLO ARTICULADO E REFRIGERADO E CABECA DE EMBOLO ARTICULADO E REFRIGERADO |
摘要 |
A method for the manufacture of a cooled piston head in which the upper and lower portions of the piston head are made separately a metal plate is placed on the lower side of the upper portion; then the upper portion incorporating the metal plate is joined to the lower portion by friction welding. The metal plate is provided with a central hole for the passage of cooling oil onto the undercrown, and means of communication with a closed cooling chamber defined by a circumferential groove on the head upper portion and the peripheral outer surface of the metal plate. |
申请公布号 |
PT97421(A) |
申请公布日期 |
1993.05.31 |
申请号 |
PT19910097421 |
申请日期 |
1991.04.19 |
申请人 |
METAL LEVE S/A INDUSTRIA E COMERCIO |
发明人 |
JOSE MANOEL MARTINS LEITES;JOSE AUGUSTO CARDOSO MENDES;ANDRE LIPPAI |
分类号 |
B23K20/12;B23P15/10;F01M1/08;F02F3/00;F16J1/00;(IPC1-7):F16J/ |
主分类号 |
B23K20/12 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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