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Featured researches published by Ruthardt Siegfried.


Archive | 2001

Common-rail injector has nozzle needle end facing valve piston protruding into guide sleeve accommodating end of valve piston facing nozzle needle or pressure rod driven by valve piston

Ruthardt Siegfried; Hanneke Juergen; Prakash-George Anthony; Rapp Holger


Archive | 2002

High pressure fuel system for combustion engines

Krickau Otto; Roza Laslo; Ruthardt Siegfried; Lalic Hrvoje


Archive | 2005

Fuel injection device, especially for internal combustion engine with direct injection, has alignment arrangement that aligns sleeve part radially relative to housing recess and valve element is guided in sleeve part

Ruthardt Siegfried; Rapp Holger


Archive | 2001

Verfahren zur Herstellung eines Ventilstücks für eine Kraftstoff-Einspritzvorrichtung

Ruthardt Siegfried; Rapp Holger; Grytz Uwe


Archive | 2000

Method for production of a valve piece for a fuel injection unit

Ruthardt Siegfried; Rapp Holger; Grytz Uwe


Archive | 2001

Fuel injector valve for internal combustion engines has spring actuated closing push rod inserted in valve plunger body to maintain vertical alignment

Wagner Werner; Ruthardt Siegfried; Rapp Holger


Archive | 2005

FUEL INJECTION DEVICE, ESPECIALLY FOR A DIRECT INJECTION INTERNAL COMBUSTION ENGINE

Ruthardt Siegfried; Rapp Holger


Archive | 2005

Wear-resistant valve for liquids and method for producing the same

Ruthardt Siegfried; Rapp Holger; Finke Uwe; Teschner Werner; Wahr Gerd; Kahleyss Ingolf; Boecking Friedrich; Voss Alexander; Gehrke Andreas


Archive | 2004

DRY BLAST FOR GROOVE GEOMETRY

Ruthardt Siegfried; Hanneke Juergen; Ferraro Giovanni; Hamutcu Kasim-Melih


Archive | 2004

Edge rounding process, e.g. for fuel injection jets, involves creating internal stresses in edges to be rounded so that components can take higher load

Ruthardt Siegfried; Boecking Friedrich

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