Fluid sprinkling – spraying – and diffusing – Including valve means in flow line – Reciprocating
Patent
1997-12-23
1999-12-07
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Including valve means in flow line
Reciprocating
25112921, 251333, F02M 5106
Patent
active
059969121
ABSTRACT:
The injector nozzle includes a cylindrical needle which is axially reciprocated by an armature assembly. The needle has a needle tip terminating in a flat end surface with a spherical transition surface between the flat end surface and the side walls of the needle. Depending upon the diameter of the needle and the included angle of the valve seat, the diameter of the flat end surface may be less than the diameter of the orifice through the valve seat. The circular edge defined between the flat end surface and the spherical transition surface defines a location where the liquid fuel and air consistently separate from the needle in the valve-open condition whereby variations in the spray cone angle and the flow rate are minimized during steady-state and transient operating conditions.
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Ren Wei-Min
Shen Jingming Jim
Douglas Lisa A.
Kashnikow Andres
Siemens Automotive Corporation
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