Global Patent Index - EP 0980472 A1

EP 0980472 A1 20000223 - DISCHARGING BY-PASS FOR HIGH PRESSURE DIRECT INJECTION PUMP

Title (en)

DISCHARGING BY-PASS FOR HIGH PRESSURE DIRECT INJECTION PUMP

Title (de)

ENTLASTUNGS-BYPASS FÜR HOCHDRUCKPUMPE MIT DIREKTEINSPRITZUNG

Title (fr)

BY-PASS DE DELESTAGE POUR POMPE A INJECTION DIRECTE A HAUTE PRESSION

Publication

EP 0980472 A1 (FR)

Application

EP 98924389 A

Priority

  • FR 9800911 W
  • FR 9705724 A

Abstract (en)

[origin: FR2763100A1] The invention concerns a discharging device for a high pressure direct injection pump (10) supplying fuel to a motor vehicle engine injector ramp (6), the pump (10) being supplied with fuel by a low pressure electric supercharging pump (11) communicating with a fuel tank (14) and the high pressure delivered being regulated by a pressure regulator (9), said pressure regulator (9) operating as a three-way valve supplying fuel, below a predetermined threshold of the engine rotation speed, to the ramp (6) by the supercharging pump (11), then supplying said ramp (6) through the injection pump (10) top part when the engine speed is above the predetermined threshold.

IPC 1-7

F02D 41/38; F02M 55/00; F02M 63/02

IPC 8 full level

F02D 41/32 (2006.01); F02D 41/38 (2006.01); F02M 55/00 (2006.01); F02M 63/02 (2006.01)

CPC (source: EP)

F02D 41/32 (2013.01); F02D 41/3809 (2013.01); F02M 55/00 (2013.01); F02M 63/0225 (2013.01); F02D 2200/0602 (2013.01); F02D 2250/31 (2013.01)

Citation (search report)

See references of WO 9851921A1

Designated contracting state (EPC)

DE IT

DOCDB simple family (publication)

FR 2763100 A1 19981113; FR 2763100 B1 19990723; BR 9809607 A 20000704; DE 69804602 D1 20020508; DE 69804602 T2 20040219; EP 0980472 A1 20000223; EP 0980472 B1 20020403; US 6170473 B1 20010109; WO 9851921 A1 19981119

DOCDB simple family (application)

FR 9705724 A 19970509; BR 9809607 A 19980506; DE 69804602 T 19980506; EP 98924389 A 19980506; FR 9800911 W 19980506; US 42311299 A 19991029