Manufacturing method of a piston for an internal combustion engi

Details Manufacturing method of a piston for an internal combustion engi Manufacturing method of a piston for an internal combustion engi

1988-03-09

1989-10-03

Eley, Timothy V.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

29423, 295273, 164522, 264277, B23P 1510

Patent

active

048707333

ABSTRACT:
A manufacturing method of a piston in used for an internal combustion engine. The method comprises a step of reinforcing a circumference of a top ring groove by an inorganic fiber assembly, a step of forming an oil cooking gallery by a soluble core, a step of fixing the soluble core by projections formed in a strut preventing a thermal expansion of the piston, a step of setting the soluble core in a position supported by a punch mold, and step of setting the inorganic fiber assembly in an annular groove of a lower mold.

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patent: 3613521 (1971-10-01), Itano
patent: 4228727 (1980-10-01), Speaight et al.
patent: 4334507 (1982-06-01), Kohnert et al.
patent: 4498219 (1985-02-01), Ban et al.
patent: 4532686 (1985-08-01), Berchem
patent: 4651631 (1987-03-01), Auezou

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