Fluid sprinkling – spraying – and diffusing – Including valve means in flow line – Reciprocating
Patent
1999-12-07
2000-12-19
Kashnikow, Andres
Fluid sprinkling, spraying, and diffusing
Including valve means in flow line
Reciprocating
239491, 239494, 239590, 239584, 239596, 23953312, B05B 134, F02M 5100
Patent
active
061617822
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND INFORMATION
German Patent Application No. 39 43 005 describes an electromagnetically actuatable region. Upon excitation of the magnetic circuit, a flat valve plate functioning as a flat armature is lifted away from a valve seat plate located opposite and coacting with it; together they form a plate valve element. Arranged upstream from the valve seat plate is a swirl element that imparts a circular rotary motion to the fuel flowing toward the valve seat. A stop plate limits the axial travel of the valve plate on the side opposite the valve seat plate. The valve plate is surrounded by the swirl element with a large clearance; the swirl element thus provides a certain guidance for the valve plate. Recessed in the swirl element on its lower end face are several tangentially extending grooves which proceed from the outer periphery and extend into a central swirl chamber. Because the swirl element rests with its lower end face on the valve seat plate, the grooves exist as swirl channels.
International Publication No. WO 96/11335 describes a fuel injection valve at whose downstream end is arranged a multiple-disk atomization extension with a swirl preparation function. This atomization extension is also provided on the valve seat support, downstream from a disk-shaped guide element built into a valve seat support, and from a valve seat; an additional support element holds the atomization extension in a defined position. The atomization extension is embodied with two disks or four disks, the individual disks being manufactured from stainless steel or silicon. Conventional machining methods, such as electrodischarge machining, punching, or etching, are correspondingly used in the manufacture of the opening geometries in the disks. Each individual disk of the atomization extension is fabricated separately, after which, in accordance with the desired number of disks, all the disks of the same size are stacked onto one another to form the complete atomization extension.
German Patent Application No. 196 07 288 describes a so-called multilayer electroplating process for manufacturing orifice disks that are suitable, in particular, for use in fuel injection valves. The disclosure of this German Patent Application which describes a principle for manufacturing disks by multiple electroplating deposition of variously structured metals onto one another, resulting in an integral disk, is explicitly incorporated herein by reference. Microelectroplating metal deposition in several planes, plies, or layers is also used to manufacture the atomization disks according to the present invention.
SUMMARY OF THE INVENTION
The atomizer disk according to the present invention has the advantage that it can be manufactured in particularly economical fashion. One advantage is the fact that the atomizer disks can be produced simultaneously, reproducibly, and extremely precisely in very large quantities (excellent batch capability). Because of they are made of metal, atomizer disks of this kind are highly resistant to breakage and easy to install, for example on injection valves or other spray discharge nozzles of any kind. The use of multilayer electroplating allows extremely wide design freedom, since the contours of the opening regions (inlet regions, swirl channels, swirl chamber, outlet opening) in the atomizer disk can be selected without restriction. This flexible shaping is very advantageous especially as compared to silicon disks, in which the achievable contours (truncated pyramids) are strictly defined by the crystal axes.
Metallic deposition has the advantage, especially as compared to the manufacture of silicon disks, of a wide selection of materials. A wide variety of metals, with their different magnetic properties and hardnesses, can be utilized in the microelectroplating method used to manufacture the atomizer disks.
The extensive design freedom for the contours inside the atomizer disk resulting from the manner of manufacture has, in turn, the great advantage that different shapes can easily be produced for
REFERENCES:
patent: 5484108 (1996-01-01), Nally
patent: 5570841 (1996-11-01), Pace et al.
patent: 5685491 (1997-11-01), Marks et al.
patent: 5766441 (1998-06-01), Arndt et al.
patent: 5899390 (1999-05-01), Arndt et al.
patent: 5924634 (1999-07-01), Arndt et al.
patent: 6050507 (2000-04-01), Holzgrefe et al.
Dantes Gunter
Heinbuck Petra
Heyse Jorg
Nowak Detlef
Schatz Frank
Ganey Steven J.
Kashnikow Andres
Robert & Bosch GmbH
LandOfFree
Atomizing disc and fuel injection valve having an atomizing disc does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Atomizing disc and fuel injection valve having an atomizing disc, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Atomizing disc and fuel injection valve having an atomizing disc will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-264966