Internal-combustion engines – Charge forming device – Fuel injection system
Patent
1988-02-19
1990-02-13
Miller, Carl Stuart
Internal-combustion engines
Charge forming device
Fuel injection system
123469, 123456, 295276, 29DIG47, 138177, F02M 3900, B22D 11126
Patent
active
048997129
ABSTRACT:
The invention concerns a method of manufacturing a single-block fuel injection rail. The rail according to the inventive process comprises at least one rectilinear hollow tube, to which are joined at least one fuel intake tip, at least one injection intake and rail fastening means. The method comprises striking, in the hot state, a metal billet placed in a die, imparting thereto a longitudinal solid primary shape having transverse branching, whose axes are perpendicular to the longitudinal axes of the primary form, and cooling and machining the primary form so as to give the rail its final shape. The rail is formed from an aluminum alloy and the billet is struck at a temperature between about 430.degree. and 460.degree. C. The process may be used in the manufacture of fuel injection rails for the automobile industry.
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Ciecko Daniel
De Bruyn Gerard
Keire Fred A.
Miller Carl Stuart
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