Fluid sprinkling – spraying – and diffusing – Including valve means in flow line – Reciprocating
Patent
1989-06-05
1991-05-07
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Including valve means in flow line
Reciprocating
F02M 5108
Patent
active
050129821
ABSTRACT:
An electromagnetic fuel injector comprising: a movable member with a valve body provided at one end and an armature made of a magnetic material provided at the other end; a cylindrical core made of a magnetic material, the core being disposed in such a manner that the distal end thereof opposes the armature; an electromagnetic coil disposed around the cylindrical core for producing an electromagnetic force between the cylindrical core and the armature when the coil is energized; and guide sections for guiding the movement of the movable member in the axial direction, the guide sections being disposed in the vicinities of the valve body and the armature of the movable member. The guide section provided in the vicinity of the armature comprises a sliding member made of a non-magnetic material and disposed between the armature and the core. The colliding surface of the core and the armature is coated with a nickel layer which serves as an impact absorbing layer and a chromium oxide layer which serves as a surface hardening layer. A seal ring is provided between the outer periphery of a plug portion of the core and the inner periphery of a casing. The yoke is coupled to the core at a location which is closer to a fuel outlet from the seal ring.
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Ishikawa Tohru
Kamituma Yasuo
Kanamaru Hisanobu
Kosuge Tokuo
Souma Masahiro
Hitachi , Ltd.
Hitachi Automotive Engineering Co. Ltd.
Kashnikow Andres
Weldon Kevin P.
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