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Patent

Fuel-injection valve

Guenter Dantes, +1 more
TLDR
In this article, a high-pressure injection valve for directly injecting fuel into a combustion chamber of a compressed-mixture, spark-ignition internal combustion engine is described, and a slit-type flow outlet is formed between the slit-forming element and a front face of the valve seat body.
Abstract: 
The invention relates to a fuel-injection valve, in particular a high-pressure injection valve for directly injecting fuel into a combustion chamber of a compressed-mixture, spark-ignition internal combustion engine. Said valve is characterised in that an outlet opening (23) is provided downstream of the valve seat (20), the downstream end of said opening having a slit-forming element (30) that to a great extent closes the outlet opening (23). A slit-type flow outlet (35), through which a fuel spray can be discharged in a fan-type jet, is formed between the slit-forming element (30) and a front face (34) of the valve seat body (16).

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Patent

Fuel Injection Valve

Ryuji Aoki, +3 more
TL;DR: In this article, a fuel injection valve is provided that includes a valve seat member (3) having a conical valve seat (8), and a valve hole (7 ) formed through a central part of the valve seat, a valve body (18) working in cooperation with the valve, and an injector plate (10) joined to the valve member and having a plurality of fuel injection holes (11 ) radially outwardly displaced from the valve hole.
Patent

Electromagnetic fuel injection valve

Yoshio Okamoto, +8 more
TL;DR: In this article, an injector used for an internal combustion engine is described, in which a favorable magnetic attraction force is obtained to reduce a controllable minimum injection amount of a fuel injection amount.
Patent

Fluid injection nozzle

Akinori Harata, +1 more
TL;DR: A fuel injector has a chamber between a valve body and a plate in which a plurality of through holes are formed as mentioned in this paper, and fuel flows along an inner inclined surface of the valve body turns to the through holes and flows into the through hole from all directions and collides with each other at inlets of the throughhole.
Patent

Valve assembly for an injection valve and injection valve

Mauro Grandi, +2 more
TL;DR: In this article, a valve assembly for an injection valve is described, where the valve body is axially movable relative to the valve needle and a permanent magnet is arranged in the cavity at a position adjacent to the position of the armature when the needle is in its closing position.
Patent

Fuel Injection Valve

Tsuchiya Masahiro, +9 more
TL;DR: In this article, the phase angle of force applied to the primary oscillation system by the secondary oscillator is also staggered from that of the force applied by the SOS, which in turn makes it possible to achieve very accurate fuel-injection control.
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Patent

Fuel injection nozzle having coating layer and manufacturing method thereof

Yutaka Niwa
TL;DR: In this paper, a lipophobic material is used to cover the distal end of a fuel injection nozzle needle in a liquid state lipophilic material, which is formed by soaking the needle in the lipophane material.
Patent

Control of fuel injector valve lift

Masatoshi Yamada, +4 more
TL;DR: In this article, a lift stop 22 is movable to increase the maximum lift of the valve 8 from S1 to S1+S2, by either oil or fuel pressure applied to a piston thereon, an electromagnetic coil acting on the stop (32, 70), or against the bias of a spring.
Patent

Injection nozzle and a method for forming a fuel-air mixture

Dietmar Bertsch, +4 more
TL;DR: A cylinder head for an internal combustion engine includes a spark plug 3, provided in combustion chamber 2, and an injection nozzle 1 that has a housing end face 27 and a closure element 6 which is movable by an actuator and has a closure member 10 as discussed by the authors.
Patent

Adjusting EM valve for fuel injection - adjusting current without requiring access to return spring by changing magnetic characteristics of inner pole

Udo Dipl Ing Hafner, +1 more
TL;DR: In this article, a process adjusts the amount of current generated opening and closing an electromagnetically operated valve by placing a conductive material (pref. a powder (62)) with different magnetic characteristics from the inner pole (2) is put into a sink hole, which varies the magnetic force until the measured actual value corresponds to the desired value.
Patent

Fuel injection valve and method for operating a fuel injection valve

Friedrich Boecking
TL;DR: In this paper, an injection valve for fuel injection systems in internal combustion engines, having a piezoelectric or magnetostrictive actuator and a valve closing body, is described.