Global Patent Index - EP 1048843 A2

EP 1048843 A2 2000-11-02 - Fuel injection device

Title (en)

Fuel injection device

Title (de)

Kraftstoffeinspritzvorrichtung

Title (fr)

Dispositif d'injection de combustible

Publication

EP 1048843 A2 (DE)

Application

EP 00105302 A

Priority

DE 19919665 A

Abstract (en)

A magnetic valve (3) is fitted in an injection pipe (4) remotely from an injector. The injector acts as an injection jet (5) The injection pipe between the magnetic valve and the injection jet is so designed that pressure level against the injection jet can momentarily be raised excessively in an injection area above the maxima for pressure swings in fuel pillars in the injection pip in contrast to pressure in a joint common rail (1).

Abstract (de)

Durch die Erfindung wird eine Kraftstoffeinspritzvorrichtung mit einer gemeinsamen Hochdruckleitung (Common-Rail) zur Verfügung gestellt, die bei gesteigerter Lebensdauer der beteiligten Bauteile eine effizientere und damit umweltschonendere Kraftstoffausnutzung mit sich bringt, indem ein Magnetventil (3) entfernt von einem Injektor in einer Einspritzleitung (4) angeordnet, der Injektor als Einspritzdüse (5) ausgebildet und die Einspritzleitung (4) zwischen Magnetventil (3) und Einspritzdüse (5) derart ausgebildet ist, daß über Maxima von im Betrieb der Verbrennungskraftmaschine auftretenen Druckschwingungen der in den Einspritzleitungen (4) befindlichen Kraftstoffsäulen jeweils das Druckniveau vor einer Einspritzdüse (5) gegenüber dem in der gemeinsamen Hochdruckleitung (1) (Common-Rail) befindlichen Druck im Einspritzzeitraum kurzzeitig überhöhbar ist. <IMAGE>

IPC 1-7 (main, further and additional classification)

F02M 63/02

IPC 8 full level (invention and additional information)

F02M 63/00 (2006.01); F02M 63/06 (2006.01); F02M 55/00 (2006.01); F02M 55/02 (2006.01)

CPC (invention and additional information)

F02M 63/06 (2013.01); F02M 63/0007 (2013.01); F02M 55/00 (2013.01); F02M 55/02 (2013.01); F02M 2200/40 (2013.01)

Citation (applicant)

DE 19548279 A1 19970403 - BOSCH GMBH ROBERT [DE]

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

EP 1048843 A2 20001102; EP 1048843 A3 20040922; EP 1048843 B1 20060830; AT 338209 T 20060915; DE 19919665 A1 20001102; DE 50013369 D1 20061012

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