Pistons

Details Pistons Pistons

1995-06-05

1999-06-22

Vo, Peter

Expansible chamber devices

Piston

Open-ended hollow skirt type

92258, 29888042, 29888044, 1231934, F02F 316, F02F 328

Patent

active

059139609

ABSTRACT:
A method is described of making a piston crown, the method comprises the steps of making a lower crown portion, the lower crown portion also having piston pin bosses, making an upper crown portion which co-operates with the lower crown portion and joining the lower and upper crown portions together to form an oil retaining chamber. The upper and lower crown portions may be made by a precision casting technique in a ferrous alloy and may be joined by a brazing operation. The piston crown may be part of an articulated piston or may further include integral skirt portions.

REFERENCES:
patent: 1547737 (1925-07-01), Daiber
patent: 3424138 (1969-01-01), Dreisin
patent: 4083292 (1978-04-01), Goloff
patent: 4617887 (1986-10-01), Nagase et al.
patent: 4662319 (1987-05-01), Ayoul
Elsbett et al "The Ferrum Piston For Diesel Engines--A Two Piece Articulated Piston Design" SAE 850505, 1985.

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