Valve needle and method for producing a valve needle

Details Valve needle and method for producing a valve needle Valve needle and method for producing a valve needle

1990-04-13

1991-12-17

Kashnikow, Andres

Fluid sprinkling, spraying, and diffusing

Flow deflecting or rotation controlling means

Fluid rotation inducing means upstream of outlet

2395333, 23953312, 239585, 2988841, B05B 134, F02M 6100

Patent

active

050728857

ABSTRACT:
A fuel injection valve for an internal combustion engine, in which the valve needle blanks are cut from a profile bar having grooves in its circumference which extends the direction of the longitudinal axis; the blanks are then twisted to form helical grooves and then machined in a metal-cutting manner, in order to produce the final needle shape.

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patent: 4925111 (1990-05-01), Foertsch et al.
patent: 4974565 (1990-12-01), Hashimoto et al.

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