Global Patent Index - EP 1397593 B1

EP 1397593 B1 20070815 - FUEL INJECTION DEVICE WITH A PRESSURE BOOSTER

Title (en)

FUEL INJECTION DEVICE WITH A PRESSURE BOOSTER

Title (de)

KRAFTSTOFFEINSPRITZEINRICHTUNG MIT DRUCKVERSTÄRKER

Title (fr)

SYSTEME D'INJECTION DE CARBURANT COMPORTANT UN AMPLIFICATEUR DE PRESSION

Publication

EP 1397593 B1 20070815 (DE)

Application

EP 02742762 A 20020517

Priority

  • DE 0201792 W 20020517
  • DE 10126686 A 20010601

Abstract (en)

[origin: DE10126686A1] The fuel injection system (1), for an internal combustion motor, has a pressure amplifier (4) with a sliding piston (6) which compresses the fuel from a low pressure zone (10) into a high pressure zone (9) to give the fuel its pressure to pass to the fuel injector (3). The piston stroke is controlled by the pressure in a pressure difference zone (7), to set the fuel pressure at the injector. A slit opening between the pressure difference zone and a leakage line (21), with an opening/closing piston, gives a cross section control of the outflow cross section from the difference pressure zone in two stages according to the stroke (h) of the pressure amplifier piston (6).

IPC 8 full level

F02M 47/00 (2006.01); F02M 57/02 (2006.01); F02M 47/02 (2006.01); F02M 55/00 (2006.01); F02M 59/10 (2006.01); F02M 59/34 (2006.01)

CPC (source: EP US)

F02M 47/027 (2013.01 - EP US); F02M 55/002 (2013.01 - EP US); F02M 57/025 (2013.01 - EP US); F02M 57/026 (2013.01 - EP US); F02M 59/105 (2013.01 - EP US); F02M 59/34 (2013.01 - EP US)

Citation (examination)

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

DE 10126686 A1 20021219; DE 50210713 D1 20070927; EP 1397593 A1 20040317; EP 1397593 B1 20070815; JP 2004521242 A 20040715; JP 4126011 B2 20080730; US 2004089269 A1 20040513; US 6938610 B2 20050906; WO 02099270 A1 20021212

DOCDB simple family (application)

DE 10126686 A 20010601; DE 0201792 W 20020517; DE 50210713 T 20020517; EP 02742762 A 20020517; JP 2003502362 A 20020517; US 34321503 A 20030725