Global Patent Index - EP 0383753 B1

EP 0383753 B1 19910828 - FUEL METERING SYSTEM FOR INTERNAL COMBUSTION ENGINES

Title (en)

FUEL METERING SYSTEM FOR INTERNAL COMBUSTION ENGINES

Publication

EP 0383753 B1 19910828 (DE)

Application

EP 88901229 A 19880202

Priority

DE 3711398 A 19870404

Abstract (en)

[origin: WO8808077A1] In a fuel metering system for internal combustion engines, fuel metering is arrested during engine overrunning, but after overrunning, it is increased briefly above the metered quantity required for normal operation at the instantaneous operating point of the internal combustion engine, in order to accelerate, by means of this fuel enrichment, the reformation of the fuel film in the inlet tube without adversely affecting the composition of the fuel-air mixture. Precise metering of the fuel enrichment is achieved using the ''rich mixture'' output signal of a lambda sensor (21) as the cut-out criterion for the fuel enrichment.

IPC 1-7

F02D 41/12; F02D 41/14

IPC 8 full level

F02D 41/04 (2006.01); F02D 41/12 (2006.01); F02D 41/14 (2006.01)

CPC (source: EP KR US)

F02D 41/047 (2013.01 - EP US); F02D 41/12 (2013.01 - KR); F02D 41/126 (2013.01 - EP US); F02D 41/14 (2013.01 - KR); F02D 41/1475 (2013.01 - EP US)

Citation (examination)

  • PATENT ABSTRACTS OF JAPAN; BAND 8; NR: 76 (M-288)(1513); 9.April 1984, & JP A 58222928 (TOYOTA JIDOSHA KOGYO K.K.) 24.DECEMBER 1983
  • PATENT ABSTRACTS OF JAPAN; BAND 8; NR. 170 (M-315)(1607); 7. AUGUST 1984; & JP A 5965537 (HITACHI SEISAKUSHO K.K.) 13. APRIL 1984
  • PATENT ABSTRACTS OF JAPAN; BAND8; NR. 64 (M-S85) (1501); 27.MAERZ 1984; & JP A 58214626 (TOYOTA JIDOSHA KOGYO K.K.) 13.DECEMBER 1983

Designated contracting state (EPC)

DE FR GB IT

DOCDB simple family (publication)

DE 3711398 A1 19881020; DE 3864521 D1 19911002; EP 0383753 A1 19900829; EP 0383753 B1 19910828; JP 2604840 B2 19970430; JP H02502934 A 19900913; KR 0121323 B1 19971124; KR 890700748 A 19890427; US 5020495 A 19910604; WO 8808077 A1 19881020

DOCDB simple family (application)

DE 3711398 A 19870404; DE 3864521 T 19880202; DE 8800047 W 19880202; EP 88901229 A 19880202; JP 50143788 A 19880202; KR 880701583 A 19881201; US 42785889 A 19891004