EP 0318714 B1 19940223 - Exhaust gas recirculation device for internal combustion engines.
Title (en)
Exhaust gas recirculation device for internal combustion engines.
Title (de)
Abgasrückführeinrichtung für Brennkraftmaschinen.
Title (fr)
Dispositif de recirculation de gaz d'échappement pour moteurs à combustion interne.
Publication
Application
Priority
DE 3740968 A 19871203
Abstract (en)
[origin: EP0318714A2] Exhaust gas recirculation device for internal combustion engines (55) with a fuel injection system, in which, in controlling the delivery start adjustment as a function of the load and engine speed on a specific load and speed characteristic curve, a hydraulic back- pressure builds up which serves directly for controlling a pneumatic directional valve (48) having a hydraulic servo motor (47), with which valve the exhaust gas return valve (51), functioning at a partial vacuum, is controlled and in which, in particular, the hydraulic back- pressure is controlled by means of a pressure-holding valve (46). <IMAGE>
IPC 1-7
IPC 8 full level
F02D 1/18 (2006.01); F02D 1/08 (2006.01); F02D 21/08 (2006.01); F02M 26/62 (2016.01); F02M 41/12 (2006.01)
CPC (source: EP KR US)
F02D 1/08 (2013.01 - EP US); F02M 25/06 (2013.01 - KR); F02M 26/62 (2016.02 - EP US); F02M 41/126 (2013.01 - EP US); F02M 26/55 (2016.02 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
DE 3740968 C1 19881215; DE 3887966 D1 19940331; EP 0318714 A2 19890607; EP 0318714 A3 19900214; EP 0318714 B1 19940223; JP 2690335 B2 19971210; JP H025750 A 19900110; KR 890010409 A 19890808; KR 970003154 B1 19970314; US 4907560 A 19900313
DOCDB simple family (application)
DE 3740968 A 19871203; DE 3887966 T 19881103; EP 88118278 A 19881103; JP 30428388 A 19881202; KR 880016043 A 19881202; US 27053088 A 19881114